Gravity Falls

Personality: Li'l Gideon is a self-proclaimed television psychic whose real mission is to take down his competition, the Mystery Shack. He uses his "cuteness" as an advantage to get what he wants and admits that people have a hard time saying "no" to him because of it. It seems that he can be kind when he needs to be, as seen with most of his dates with Mabel. He is manipulative, cunning, and sly, tricking Stan in "The Deep End" into getting glued to the deckchair. He speaks with a Southern American dialect. He is spoiled, ungrateful, bratty, selfish, and abusive towards his parents in ways such as throwing ice cream, yelling at them, making a fuss, and breaking lamps. His mother appears to fear him. He's also very vengeful and jealous, even to the point of trying to murder Dipper, and then Mabel in "The Stanchurian Candidate" after being rejected by Mabel once again and losing the debate to Stan. He can also be very rude, obnoxious, and argumentative; an example is shown in "Little Dipper," where people are buying cars from his dad, and he calls them "Mouth-breathing fools" behind their backs. He is deeply arrogant, believing himself to be above everyone else in Gravity Falls, at one point claiming that they are "sheep" who need him. He is enemies with Dipper because he believed Dipper got in between Mabel and him during "The Hand That Rocks the Mabel." He is also enemies with Stan Pines, being a competitor towards the Mystery Shack. He also seems to be completely obsessed with obtaining the power that the journals would give him, going so far as to attempt to track down Dipper and Mabel when they were leaving Gravity Falls and ignoring their claims to not have the first journal. He is extremely manipulative, lying to the residents of Gravity Falls to get them to do what he wants, such as telling them Dipper and Mabel blew up his "statue" with dynamite to try to get them arrested. Due to getting almost everything he wants, Gideon can become severely unhinged when something is beyond his reach. He refuses to accept the fact that Mabel wants nothing to do with him, being in complete denial about his feelings; At one point, he claimed she loved him, but just didn't know it yet (which may have been incited by Bill telling him they were "destined" to be together). However, in "Weirdmageddon Part 1," after Dipper explains to him that he can't force Mabel to love him, he decides to be less selfish and is determined to prove himself as a "hero," later remembering that he's no one's servant. He acknowledges he's been wrong in the way he's treated Mabel and decides to fight Bill and his army, even if he won't survive. By the end of the show, Gideon vows that seeing the Pines twins' goodness has made him want to change; he says he will not do any more "evil doings" and will try to be like a regular kid.

Personality: Wendy is a mellow, down-to-earth, fun-loving, and lethargic teen who is a part-time worker at the Mystery Shack. She doesn't enjoy working despite barely doing much. Her boyish personality and interests reflect that of a tomboy archetype. Despite her cool, laidback attitude, it is a cover for the stress her family causes her. Wendy generally maintains a positive outlook, is almost always friendly, and is rarely seen being moody or cranky. She is friendly and generous to Dipper and Mabel even though they are younger than she is; even when her friend group initially teased her in "The Inconveniencing," she is always delighted to hang out with them. Wendy is a brave, strong girl when going against threats and protecting her friends. Through any adventure she goes on with her friends, she always proves to be helpful and very understanding. She's somewhat gluttonous, as she decided to become a lifeguard for the Gravity Falls pool for snack privileges, but got fired due to taking too many snacks. Wendy is just like any other ordinary teenager who wants to be an adult. She has been in numerous relationships with boys, including Robbie Valentino (whom she broke up with in "Boyz Crazy").

Appearance: At her current age of 15, Wendy is a very tall, attractive, and skinny teenager. She has green eyes, a fair complexion, a turned-up nose, and some freckles. She has long red hair just past her hips. Wendy is usually seen wearing a tan and dark brown trapper hat, most likely because Manly Dan, her father, is a lumberjack. Her standard outfit is an emerald green plaid shirt with a white tank top underneath, green stub earrings, dark blue jeans, and muddy rain boots, with yellow and orange socks underneath. She wears a name tag at work.

Personality: Soos is a friendly employee whose desire to be where the action is makes him an excellent resource for the twins when they need a ride around town. Aside from the twins, he is one of the only people around who sees and believes all the strange things happening in Gravity Falls, as seen in "Tourist Trapped", when he says he is always noticing weird stuff in Gravity Falls, an assertion he makes in other episodes. While he frequently shows an eager, inquisitive, and childish nature, Soos knows when to draw the line and be an adult, such as when he, Mabel, and Dipper encountered the Gobblewonker, where he carried both of them and outran it. He has good relationships with Dipper and Mabel, though Dipper becomes irritated with him at times, such as in "Land Before Swine", when he is clumsy and he does not see the problem. He is also very humorous. He is addicted to pressing the cackling skulls at the Summerween Superstore and believes that the inflatable ducks from the pool can talk. This gives proof of his childish and naïve nature.

Appearance: Soos wears a light brown cap, has light peach-fair skin, and buck teeth, similar to those of a beaver. He wears dark brown shoes, beige shorts and a jade green-ish grey shirt with a big dark green poorly painted question mark on the front and the word "Staff" on the back, which is from the Mystery Shack. He also owns one other shirt that looks just like his trademark shirt, only without the word "staff" or a question mark. He also has a double chin and has a few hairs on his face that he glues on himself. He has short light brown hair that is styled similar to Dipper's, which is shown in "Little Dipper". His neck is wider than his head, or so it appears. It seems to be obscured by his double chin. In Journal 3, Ford describes Soos as looking like a creature from a dimension he once visited called "Rodentus 7", which was inhabited by rodent-like creatures. According to Dipper, Soos has a gentle blush on his cheeks: "Like an angel embarrassed by humanity" At the end of "Weirdmageddon 3: Take Back The Falls", after becoming the new owner of the Mystery Shack, he wears the same outfit as Stan Pines.

Personality: Ford is an intellectual man who is considered an introverted and nerdy person, enjoying games which involve high levels of thinking, such as Dungeons, Dungeons, and More Dungeons. He would even go as far as to ignore the dangers of his research just to play such games (to the point where he would let a Cycloptopus bite his face when he became excited). Despite his intelligence, he is very behind the times when it comes to his own dimension, since he hasn't set foot in it for thirty years. He doesn't have a clue about modern technology or customs; he believes floppy disks are still in use, and had very little worry about giving Mabel a crossbow, thinking it's safe to give children weapons. Before he was sucked into the portal, he was shown to be paranoid and overly cautious, having a hard time trusting people due to being tricked by Bill. Despite being very intelligent, Ford has shown himself to be very self-absorbed. This is shown by his reluctance to part with his life's work and share his scientific accomplishments with loved ones, instead relishing the image of being a solitary hero. However, Ford cared for his family, even in dire or delicate situations, such as when he and Stan fought against each other; he was apologetic for having caused a burn on his back. Another time his love for his family was shown was when Bill threatened multiple times to harm Dipper and Mabel, and was willing to let Bill take over the universe as long as he freed them. Ford has a strong need to have his intellect recognised and celebrated, which made it easy for Bill to trick him by claiming to be a muse who chose "one great mind" every century to inspire. He is seen as a serious person when it comes to his work in researching the paranormal. However, he genuinely enjoys his research, even in the face of danger. His years of researching the paranormal both in and out of his realm have made Ford a strong, brave individual who will face danger head-on in order to ensure that the world is safe. However, after all of his years of researching the paranormal, Ford’s excitement for confirming things such as the existence of extraterrestrials has dulled.

Appearance: Ford bears a close resemblance to Stan Pines. However, there are a few notable differences: Unlike Stan, Ford's hair is dark grey with a horizontal silver streak along the sides of it, and he possesses unusually long sideburns.
His chin has a cleft and a slight five o'clock shadow.
Ford's nose is visually smoother than Stan's, lacking bumps.
He is a central polydactyl with six fingers on each hand.
Ford has a much narrower build than Stan.
Not Ford's eye, as stated by Alex Hirsch on Twitter.
Not Ford's eye, as stated by Alex Hirsch on Twitter.
When he first comes out of the portal, he is seen wearing a large black coat with multiple pockets on the inside and an item that appears to be a gun resting on his back. Underneath his coat, he wears a black shirt and pants. He also dons bulky black boots, a brown belt that slings from his shoulder, a tattered cape and a grey scarf. In subsequent appearances, Ford is seen wearing a tan coat, a red turtleneck with a black belt that slings across his chest, black pants, and large brown boots coated in dirt. He has a gold dot on either side of his glasses and a crack on the left lens. Many believe the blue eye from after the end of Ford's dream in "The Last Mabelcorn" to be his eye; however, this was disproved by Alex Hirsch on Twitter. Ford actually has brown eyes, as referenced in the tweet he replies to. This is also further confirmed by the fact that in thisisnotawebsitedotcom.com, a document is revealed when the user types in "STANFORD" and presses the button on the computer, which shows Stanford's case report on his polydactyly diagnosis, and lists his eye colour as "Brown".

Personality: Grunkle Stan is, on the surface, a wise and cunning salesman, highly manipulative, very charismatic and charming, running a tourist trap in a town with enough unsuspecting customers to sell worthless knickknacks to and take on tours of so-called "mysteries." Years on the road as a conman gave him plenty of time to develop criminally sophisticated behaviours which have benefitted him greatly in his present life. He conducts his business with surprising flair and wit. When not planning or executing money-making schemes (both legal and illegal), he's usually at home watching television. His preferred shows include Cash Wheel, Duck-tective and period dramas. He also enjoys fishing. Stan is also manifestly greedy and selfish, even stating once that his greatest desire in life is to "possess riches". He sees tourists as easy cash and nothing more. However, this obsession seems to stem from his father's words when he kicked him out of the house, and by the harsh, poverty-stricken life he led after being disowned. While his trickery might appear unremarkable to some, Stan's cunning transcends his Mr Mystery persona: he's been able to figure out Lil' Gideon's plots on numerous occasions and even manages to outwit Bill Cipher in the end. Even though he was written off as unintelligent by his teachers and even his father, he was capable of restoring his brother's universe portal and can be seen operating its computer in the days leading up to Ford's return. Stan has a deep sense of family loyalty. He responded to Ford's request for help after an entire decade of being estranged, and was deeply hurt when he realised his brother didn't intend to make amends, even calling him out on how bad a brother Ford turned out to be. He dedicated thirty years of his life to bringing Ford back to their dimension in spite of how strained their relationship had become in the years leading up to the fight. Stan is also shown to be very protective of Mabel and Dipper, despite the morally ambiguous situations he puts them in on occasion: he stood up to hoards of reanimated corpses to protect them, telling the zombies nobody (but him) harassed his family, and ditched the elections for mayor at a crucial moment to rescue the twins as they dangled from Mayor Befufftlefumpter's monument. When he believes Ford might put Dipper and Mabel at risk, Stan has no qualms about warning his brother away from them. Stan's dedication to his family is outright expressed during Weirdmageddon, when he offers to obliterate his own mind to ensure the twins' survival. Once he and Bill are trapped in his mindscape, Stan points out to the increasingly frantic demon that, while he's a wise guy, he made a fatal mistake: he messed with Stan's family. His final thoughts before his mind disappears are for Dipper and Mabel, even remarking that his mind was finally 'good for something' if its destruction protected them. Despite his lengthy history as a con artist, he has a compulsion to state his honest opinions on the subject at hand. Some examples include: during "Headhunters," Stan stated to the man who sold him the cursed wax figures that he would just rob him later on for charging twenty dollars per statue, and has blurted out a "non-specific excuse" to get out of a bad date. He even admits in "The Stanchurian Candidate" that he has little to no filter between his thoughts and his words. When it came to love and romance, Stan tended to go overboard—whether in his behaviour, appearance, or actions—often coming across as flamboyant and attention-seeking toward women he liked. In "This Is Not A Website Dot Com," it's revealed that Stan had been in several romantic and sexual relationships over the years with women he genuinely cared for and could have settled down with. However, he never managed to fully commit to any of them, held back by his traumatic family past and his determination to make something of himself first. Believing, wrongly, that true happiness would only come after achieving fame and fortune, he let that obsession consume him. Bill later mentioned that this pursuit became one of Stan's biggest regrets, as it had cost him everything that truly mattered. Stan Pines stands out as the only member of the Pines family who begins already understanding the price of his own selfishness, having spent decades facing the consequences of breaking Ford's science project and being cast out of his home. While Ford, Dipper, and Mabel each go through arcs where their personal ambitions—whether intellectual drive, a need to prove themselves, or emotional idealism—end up hurting others before they learn restraint, Stan has already learned that lesson. His lingering guilt and fierce commitment to protecting his family shape his actions throughout the series, culminating in his willingness to sacrifice himself in the final battle with Bill Cipher. This history also explains why Bill can't manipulate him: Bill's schemes rely on exploiting ego, desire, or fear of loss, none of which sway Stan anymore, making him unusually resistant to the demon's influence and a perfect foil to his worldview.

Appearance: Stan has brown eyes with cataracts, grey eyebrows, and grey hair (both of which were brown in his youth), which is almost always covered by Stan's trademark maroon fez. The fez bore a yellow crescent shape (through episodes 1 to 13) and later a similar figure (after the original fez was eaten by Gompers), albeit with straight edges and a dot next to it, resembling an oyster with a pearl in it. He bears a somewhat large, droopy, pear-shaped, bumpy, reddish-pinkish nose, large ears, and fair skin. As a result of his age, Stan has wrinkly skin, a hearing aid, and dentures. He has a faded burn mark of the symbol on the side of Ford's desk on his back. He usually wears a pair of rectangular glasses with a black rim, which later had its outline thinned. Stan also has a perpetual five o'clock shadow covering his lower face. Stan's typical outfit is a black suit, with the jacket buttoned closed, a bow tie similar in colour to his fez, and a white dress shirt. He also wears big, light brown shoes, the aforementioned fez and his glasses. He frequently carries an eight-ball cane with him and often wears an unnecessary eye patch over one of his eyes while working.

Personality: Dipper is intelligent, compassionate, self-conscious, rational, sometimes overly judgmental, and can't wait to grow up. An adventurer at heart, Dipper can't sit still and is always looking for the next riddle or mystery to solve. He is also a bit temperamental and gets angry easily, like when he gets frustrated when things don't go his way or when he holds a grudge against someone he doesn't like. His scrupulous attention to detail is useful when he is attempting to solve mysteries, but sometimes his over-zealousness can leave others questioning his credibility. Dipper is shown to be extremely "genre-savvy", knowing that in most movies, nobody has a camera when they see the monster, or that the camera malfunctions. However, Dipper brings along 17 cameras with him to take a photo of the Gobblewonker. He is wise and intelligent beyond his years, and his refusal to sit still when there are puzzles to be solved often leaves him restless in everyday situations. In "Carpet Diem", he has a habit of clicking his pen repeatedly when in deep thought. He seems to believe that he is often too busy with other work to bother with certain tasks, such as washing his clothes. He also seems to get very irritated when people think he's "cute" or "adorable", as he wants to be taken seriously as a grown-up by people around him because, at most times, Dipper is more mature than others. He began glaring at his twin sister Mabel when she commented that he "sneezed like a kitten" in the episode "Headhunters".[15] When Dipper and Mabel (and Soos at times) are on their adventures, Dipper is the one to act as the leader mostly because he is shown to be very brave and smart. He is somewhat protective of his sister: whenever she is in danger, he is always there to help and will do anything to get her free. He can sometimes be selfish and is not above using Gravity Falls' mysterious elements to his advantage. He can also be ruthless in the pursuit of his goals, such as not apologising for attacking Soos in "Not What He Seems", unlike Mabel, who apologised prior to grappling him. But ultimately, he always does the right thing and has the right motivations. It is also well mentioned that Dipper is paranoid and has had trust issues since the beginning when the journal warned him to "Trust No One" and has been sceptical about people and situations. For example, in "The Last Mabelcorn", Dipper fearfully backs away from Stanford Pines, whom he thought was being possessed, while holding a memory gun pointed at his head, muttering the phrase "Trust no one" repeatedly to himself. With his experience in Gravity Falls as well as his knowledge in the mystery novels that he reads, Dipper thinks much like an actual detective, as seen in "Headhunters". Despite his brave and serious personality, living with Mabel Pines his whole life (who is famous for her silly and fun-loving attitude) has caused him to indulge in childish activities with her, such as when both he and Mabel made puking noises whilst spraying silly string onto each other's faces in "Double Dipper". At the beginning of the episode "Headhunters", he and Mabel are seen watching Duck-tective. When a video was displayed in the future detailing the twins' current positions in "Blendin's Game", it showed Dipper and Mabel hitting each other with soft bats while laughing. Whilst playing miniature golf in "Carpet Diem", Mabel states that his shot is out of bounds, to which he responds by poking her with the golf club and shouting "YOU'RE out of bounds!", ending up with both twins poking each other. In the episode "Not What He Seems", Dipper and Mabel play with water balloons, enjoying classic summer fun. He also seems to not mind breaking the law to have fun. For example, in "The Stanchurian Candidate", when Stanley Pines asks Dipper and Mabel if they want to vandalise the new mayor's house, they both follow their uncle while cheering for joy, and Dipper even yells "Yay! Vandalism!". In "Not What He Seems," Stanley, Mabel, and Dipper are seen on the roof of the Mystery Shack bonding by exploding fireworks. When asked by the police if they have a permit, Stanley responds with "Do you have a permit for being lame?" to which they all laugh. In a "Fixin' it with Soos" episode, Soos tells Dipper and Wendy to hit the nitrous boosters that he installed onto the golf cart. Dipper asks, "Aren't those illegal?", and Soos responds with "You bet your life they are, baby!" All three of them then laugh with joy as the golf cart drastically speeds up.

Appearance: Dipper wears a dark moderate blue and white baseball cap with a dark moderate blue brim and a dark moderate blue pine tree on the front. He has somewhat messy brown hair and relatively pale skin, and his nose is a bit darker than the rest of his face. His eyes are brown, like Mabel's, with noticeable bags underneath. He wears a navy blue vest (which has inner pockets on both sides), a reddish-orange t-shirt, grey shorts, white knee-high socks with a red stripe, black sneakers with white soles, and a sometimes visible grey digital wristwatch. He is sometimes seen with a green backpack. He has a birthmark on his forehead shaped like the constellation the Big Dipper, hence his nickname "Dipper", which he hides under his bangs. He is exactly one millimetre shorter than his sister, Mabel Pines; however, he grows taller than her throughout the show. His only other clothes seen on the show are: the hat he arrived in Gravity Falls with; his lamb costume in "The Inconveniencing"; the peanut butter costume he wore in "Summerween"; the wolf costume that Grunkle Stan made Dipper wear for an attraction at the Mystery Shack and, later, his tour guide clothes in "Boss Mabel"; the white shirt, red swimsuit, and red and white hat he wore as a lifeguard uniform in "The Deep End"; a V-neck and full-length black pants he wore for the Woodstick Festival in "The Love God"; and a white shirt with a black tuxedo, a black bow tie and a matching pants and shoes in "Northwest Mansion Mystery", as well as another tuxedo consisting in a white and grey shirt with a black tie and black tailcoat, matching pants and brown shoes while being possessed by Bill in "Sock Opera". As of "Weirdmageddon 3: Take Back The Falls," he receives and wears Wendy Corduroy's lumberjack hat. His nightwear or comfortable outfit for hanging around the Mystery Shack is the same as his regular outfit, but without his hat, vest, or shoes.

Background: Over one trillion years prior to the events of the series, Bill Cipher was born. He originated from a two-dimensional universe known as Euclydia. When he was born, he had Velcro shoes that squeaked when he ran and was beloved by everyone so much that the mayor declared his birthday a national holiday. On his birthday, Bill gave out free knives to everyone as a gift. In spite of this, however, Bill despised living there, describing it as a dimension of "flat minds in a flat world with flat dreams." There was one other thing about him that was different; he had a mutation that gave him an abnormally large eye that allowed him to see the third dimension. With that, he had the ability to see a direction known as "up," something all others of his dimension could not see. Despite talk of a "third" dimension being illegal in his world, Bill was unable to think of anything else but being able to join it. Although boasting about having a good life during an inebriated rant, he implied that his claims of a good childhood are false and that he was actually ostracised for his mutation, giving him the drive to finally make his race understand what he saw. In an event known as the "Euclidian Massacre", he "liberated" his dimension by plunging it into burning chaos, along with everyone he had ever known, including his own parents. Possibly due to the inherent trauma of the event, he is unable to fully recount the details of the massacre (whenever he does, a loud buzzing noise begins in his ears and he blacks out). Given that, whether he even intended to commit the act to the extent that he did remains unclear. He eventually took over a boiling and shifting intergalactic foam between dimensions; a lawless and unstable crawlspace known as the Nightmare Realm. Unfortunately, due to the Nightmare Realm's lawlessness and lack of any consistent physics or rules, it was fated to eventually collapse on itself. After coming to learn of a prophecy that stated he would merge the Nightmare Realm with the third dimension, Bill started coming into contact with humans to accomplish this. Without a physical form, however, Bill could only access the dreams of the third dimension's beings. In order to make his dealings with mortals easier, he took on the name "Bill Cipher," as his real name would "evaporate one with an expression of horror and ecstasy on their face." Among his targets were the natives who lived in what would become the town of Gravity Falls, Oregon. Bill once asked a local shaman named Modoc the Wise to build an interdimensional gateway to the Nightmare Realm, but the result was made out of twigs. When Modoc learned of the prophecy that foretold an apocalyptic event that would stem from interactions with Bill Cipher, he committed suicide by setting himself on fire in an effort to avert it. The natives eventually discovered a way to defeat Bill by using a zodiac with ten symbols. They left behind elaborate cave paintings about their encounter with the demon, including how to summon him, and more importantly, a warning never to read the incantation that would summon Bill aloud. The valley was deemed a "cursed land" by the natives, who evacuated around 1000 AD. The area would eventually be rediscovered by Quentin Trembley and repopulated by pioneers, giving rise to the town of Gravity Falls. For the next centuries, Bill attempted to get his portal built with the help of various other humans, from the ancient Egyptians, Aztecs and even Easter Island heads. His attempts in the dark ages with a wizard gave rise to "Cipherstitions" in the old world, causing him to flee to the new world to try and get his portal built there. Bill tried using New England settlers to no avail and even tried to convince the leaders of the then newly created America to help him. His attempts would lead to the rise and fall of a group in 1901 known as the Anti-Cipher Society that tried to defeat him and spread awareness about his deception. They were deemed a joke and disbanded. In 1952, Bill possessed the dead body of an infamous conman named Silas Birchtree, who used his charisma to start a cult named Ciphertology in the Kansas town of Orchard Lake. Almost every citizen became a member of his cult, except for Emmaline Butternubbins, a local nag who knew about his true identity. Bill then ordered his members to build a portal for him, but before he could finish it, his signals were picked up by the law enforcement, who arrived to shoot down the cultists, along with Bill in Silas' body. Bill tried to deliver one last message to people, but Silas' body got decapitated as he left it, and his cult seemingly disbanded. Bill would later attempt to get his portal built with the help of animation in the 1930s that led to a failed and cancelled series about him, using nuclear tests to get it going, hiding cryptic messages in music, creating computers and even dolls. Despite all these failed attempts, his closest chance at success came when one day, someone broke the Shaman's curse, allowing him to return to Gravity Falls, Oregon. In the late twentieth century, a young man named Stanford Pines, who had spent the past six years investigating the town's plethora of unnatural creatures and oddities, hit a roadblock in his research and was left without answers as to how the improbabilities of Gravity Falls had come to be. During the roadblock, he uncovered the cave containing the ancients' stories of Bill Cipher. Heedless of the warnings, Ford repeated the incantation aloud, breaking the curse and summoning Bill into his mindscape. Bill recognised Ford's brilliant but cocky and insecure nature, and his near-friendlessness as ideal conditions for manipulation, choosing to introduce himself to Ford as a muse who chose one brilliant mind every century to inspire. It was Bill who revealed to Ford that Gravity Falls' weirdness was caused by a rift between dimensions, through which the other side's weirdness leaked through. With Bill's assistance, Stanford drafted blueprints to create an inter-dimensional gateway beneath it and his home (later becoming the Mystery Shack), recruiting his college roommate and friend Fiddleford McGucket for assistance. As Bill and Ford's partnership seemingly grew to friendship, Ford seemed to develop an obsession with Bill's powers, collecting triangular memorabilia such as rugs and statues, modelling his home's architecture in his image, and converting his private study into a place of worship. He even allowed the demon to enter his mind; this, along with the amount of information he seemed to simply produce on the spot, made Fiddleford increasingly uneasy about the portal and of Ford's mysterious collaborator, as Ford never mentioned Bill's identity to his partner. On January 18, 1983, Ford and Fiddleford performed their first trial with the active portal, which quickly went awry, as the rope that was attached to the dummy they intended to send through the portal became tangled with Fiddleford, sending him briefly through the portal head-first. Upon his return, an alienated Fiddleford muttered incoherencies before uttering a prediction about "the beast with just one eye." It is later revealed that Fiddleford saw Bill removing his exoskeleton to feed. He promptly abandoned the project. The suspicion planted in him by Fiddleford led to a confrontation between Ford and Bill, during which Ford learned that Bill had tricked him, as the portal was meant to act as a gateway to the Nightmare Realm, allowing the demon to bring chaos and destruction into their universe. Horrified and betrayed, Ford shut down the project and attempted to destroy all knowledge of the portal, before accidentally falling through it himself. Bill either could not see Ford in the thirty years he spent lost in other dimensions or did not care to, as Ford would remark that they had not seen each other in many years. With the loss of his human pawn, Bill also lost physical access to the third dimension. Despite trying to come up with other schemes, he remained more or less inactive from trying to find a new pawn.

Events of Gravity Falls: Bill's likeness is often seen in the series, as each episode contains 'hidden triangles' and even images of Bill himself, such as in "Fight Fighters", can be seen. "Dreamscaperers" is the first time Bill is directly addressed and introduced in the series. In an attempt to take over the Mystery Shack once again, Gideon Gleeful summons Bill. Gideon tells him to steal "Stanford" Pines' safe combination directly from his head so that Gideon can steal the Shack's deed. Bill thinks about this since Ford is still trapped between dimensions, after checking he realizes that Gideon is talking about his brother, Stanley, who was trying to reactivate the portal and thought this could be useful for him. So, he agrees, but in return, Gideon would have to help him in his own plans, which are not revealed to the viewer at the time. Gideon agrees immediately and the two shake on it. Unbeknownst to Gideon, Mabel and Soos witnessed the deal in the forest, and get Dipper's help to follow him into Stan's mind. Once inside Stan's head, Bill confronts the trio and brags that he even knows what they're all thinking. To prove his statement, he summons Xyler and Craz from Mabel's imagination. He tricks Mabel and Soos into looking for the memory of Stan's safe combination first, knowing they would lead him straight to it. At some point, Soos is separated from everyone else and Bill takes his place. Once they find the correct memory he takes it and nearly escapes with it. But while he reads the combination out loud to Gideon (to whom he is connected), Mabel shoots the memory door into another memory of the bottomless pit with a nyarf dart. Gideon breaks off the deal, to Bill's fury. Bill then turns his anger toward Mabel and Soos by bringing their nightmares to life and killing Xyler and Craz. Dipper returns in a timely manner and tells Mabel and Soos that while they are in Stan's mindscape they can do whatever they want. They battle Bill and he is nearly defeated. Just as though it seems he will be forced out of Stan's head, he puts a stop to everything instead. Impressed, he decides to let them go, and after warning them of a mysterious darkness that will change everything they care about, he tells them that he'll be watching them. He leaves in a representation of the zodiac, almost identical to the one that appears in his entry in Journal 2.

Season 2: Bill Cipher appears again in "Sock Opera," when Dipper is trying to figure out the password for the laptop from "Into the Bunker." He offers the laptop's password in return for a favor, but Dipper refuses the offer remembering how he acted in Stan's mind. Later, at the moment the laptop is on a countdown for complete data erasure after too many failed password entries, he appears again and Dipper accepts the deal of trading a puppet to obtain the password. Bill takes over Dipper's body as his "puppet" and destroys the laptop. He then follows Mabel to her puppet show in pursuit of Dipper's journal, which is being used as a prop in the show. After Mabel has been informed of Dipper's body having been stolen by him, he finds her with the journal as she is retrieving it for Dipper. He almost swindles her out of it but ends up in a fight with her due to her having a change of heart. He ends up losing because Mabel uses Dipper's physical weakness and exhaustion to her advantage. As he collapses, he is thrust out of Dipper's body. Bill possesses the Dipper puppet afterward and says that he will return. However, Mabel activates the pyrotechnics of the play, destroying the puppets and removing any vessel Bill could use to talk to the kids. In "Northwest Mansion Mystery," he appears on a tapestry hovering over a forest fire with two men either begging for mercy or worshiping him while skeletal corpses are underneath them, foreshadowing bad events. At the end of "The Stanchurian Candidate," after a prison-bound Gideon fails to get his father elected mayor, he is shown to have drawn Bill Cipher's zodiac on his cell wall and hidden it behind a cat poster. The symbols on the zodiac have been changed around, and some have been altered. Gideon tears down the poster and completes the drawing by adding Bill's eye before telling it he's ready to make a deal. In "The Last Mabelcorn," Bill Cipher appears in one of Ford's dreams, telling him that he has been preparing for "the big day," going on to say that Ford cannot keep the interdimensional rift safe forever. Bill throws a projection of the rift down to the ground, opening a red triangular portal in the sky and setting fire to Ford's mindscape. Furious, Ford yells at Bill to leave his mind, telling him he has no dominion in the real world. Bill leaves through the portal, telling Ford that "things change." Far later in the episode, Bill appears in flashbacks as Ford explains his time spent with the demon to Dipper. In the past, Bill and Ford were partners. Bill could enter Ford's mind at any time, and with his help, Ford built the portal. However, after Fiddleford came out of the portal traumatized by the horrifying things he saw, which were Bill's actual plans, Ford realized Bill had lied to him. He confronted Bill, who revealed his plan to merge the Nightmare Realm he comes from with the real world, causing the apocalypse. Ford broke off his partnership with Bill then and there, despite Bill's warnings that he couldn't stop the rift from happening. Ford shut down the portal and swore never to trust Bill again. At the end of the episode, Bill watches from the Nightmare Realm as Ford and Dipper manage to create a "Bill-proof" barrier around the Mystery Shack by using moonstones, mercury and unicorn hair. Undeterred, Bill decides to possess someone outside the shack instead. Near the end of "Dipper and Mabel vs. the Future," Bill, possessing Blendin Blandin, appears before Mabel, recognizing Mabel's wishes of wanting summer to never end. The possessed Blendin convinces Mabel to give him the inter-dimensional rift, which he says can be used to create a "time bubble" that can make time stop. Mabel gives Blendin the rift, which he promptly drops on the ground and frees it from its containment. Bill reveals himself and leaves Blendin's body, knocking out Mabel and Blendin with a snap of his fingers (though the latter does manage to send a warning to his comrades) and initiating Weirdmageddon. In "Weirdmageddon Part 1," after opening the rift, Bill gains a physical form and imprisons Mabel in a bubble. He introduces himself to the people of Gravity Falls, claiming to be their new ruler as well as introducing his friends to the people. The townsfolk refuse to submit, but Preston Northwest welcomes him instead, offering to be one of his "horsemen of the apocalypse." Bill sardonically feigns thinking about the offer but instead decides to disfigure Preston's face, as he had overstepped his boundaries, creating fear in the people. He begins "redecorating" the town by unleashing Eye-Bats that petrify and abduct the townspeople, summoning the Fearamid, and sending out bubbles that instill madness in everything they touch. As a result, Bill recreates the opening theme song in the process. When Bill and his friends prepare to cause havoc, Ford attempts to shoot Bill back into the rift with his quantum destabilizer, but only hits his top hat after he gets startled by the tower bell that was brought to life by a weirdness wave. When Bill notices Ford and Dipper, he blasts the clock tower. Ford, pinned under rubble, begins to tell Dipper that he knows of one other way to defeat Bill, he then tells Dipper to take his journals. He is cut short when Bill appears, towering over Ford. Bill captures Ford and presents him to his friends, telling them that Weirdmageddon wouldn't be possible without Ford. Bill makes an offer with Ford and tells him it's not too late to join his side. Ford refuses, so Bill turns him into a golden statue to use as a "back-scratcher." Dipper, who has gotten back to street-level, yells that he's had enough. Bill flies over to Dipper, asking the boy what he could possibly do to defeat him in one shot. Dipper flips through Journal 3, trying to find Bill's weakness. With no answers, Dipper panics, and leaps towards Bill, trying to punch him. In response, Bill creates a forcefield around his eye, knocking Dipper backwards, causing him to fly into a tree. Bill then telekinetically seizes the three journals, burning them in front of Dipper, with two crippled pages surviving. Bill tells 8 Ball and Teeth that they can eat Dipper for a snack. Bill then converts a normal car into a sleek getaway ride for himself and his other friends. The car flies away to the Fearamid leaving Dipper, 8 Ball, and Teeth behind. Dipper manages to run away before they eat him. Three days later, Bill and his friends are later seen having a rave party inside the Fearamid. Suddenly, the Time Paradox Avoidance Enforcement Squadron, Blendin Blandin, and Time Baby barge in, attempting to arrest Bill for possessing Blendin and almost destroying reality. Bill vaporizes the Time Police and Time Baby instantly, and the party resumes. 8 Ball and Teeth approach Bill, informing him they failed to eat Dipper. They ask him if he's worried about Dipper freeing Mabel, but Bill says he's not concerned, and that he has "Someone on the case." In "Weirdmageddon 2: Escape From Reality," Bill has been in power for four consecutive days. Most of the townsfolk have been petrified and stacked into a "massive throne of frozen human agony" for Bill. He announces his plan to take Weirdmageddon worldwide, and the demons make their way toward the edge of Gravity Falls. But instead of escaping to the rest of the world, they hit a strange force field-like energy dome that keeps Bill and his chaos stuck in the town. Later in the episode, Bill is angered and unable to understand why he and his friends aren't able to extend their reach and leave Gravity Falls to dominate the world. He realizes that Ford is the only one able to understand the shield and contemplates his next move. He is interrupted by Keyhole, who informs him Gideon, Mabel's jailer, has failed to stop Dipper, allowing him and his group to enter Mabel's bubble. Bill is not worried by this, calling Mabel's bubble one of his most diabolical traps yet. He asks for Gideon and tells Keyhole to take the day off. In "Weirdmageddon 3: Take Back The Falls," Bill reverts Ford from his gold state. He explains to Ford that he, along with the rest of his friends, can't escape Gravity Falls. Ford thinks that this is due to a natural magnetism attracting weirdness to Gravity Falls, the event he's studied for years, a force so strong that it forms a barrier that prevents that weirdness from going outside the town. He says there's a way to break this barrier, but he'd never tell him. Bill tries to persuade Ford by telling offering him unlimited power in a world without restrictions or laws. Ford again refuses, calling Bill insane. Bill laughs and calls himself insane either way. He then decides to find the equation needed to break the barrier in Ford's mind. However, Ford reminds Bill he can't unless he shakes his hand. Bill decides to try and find Ford's weakness and force him to make the deal, chaining him up further. Bill is later seen torturing Ford by blasting him with lasers until he agrees to his deal. Though Ford is in pain, he still refuses to give in. Before Bill can start torturing Ford again, he is interrupted by the Shacktron, a gigantic mech created by Old Man McGucket, with the help of Dipper, Mabel, and various townsfolk. They converted the Mystery Shack into a powerful machine to fight Bill and rescue Ford, who knows Bill's weakness. Bill finds it "adorable" that the refugees are fighting back, and orders his henchmaniacs to fight them. However, his minions are quickly defeated by the Shacktron, and Bill is upset as Ford congratulates Dipper and Mabel for their efforts. Bill realizes Ford cares about the twins, and wonders if torturing them will be more effective than torturing Ford. Bill turns Ford back into a gold statue and flies over to the Shacktron. He attempts to crush the Shacktron with a giant fist, but it remains intact thanks to the "Bill-proof" barrier surrounding the Mystery Shack. Bill becomes enraged and repeatedly punches the Shacktron. The refugees use the dinosaur attached to the Shacktron's left arm to tear out Bill's eye and distract him. Realizing now is their chance to rescue Ford, a team composed of the twins, Stan, Soos, McGucket, Wendy, Pacifica, and Sheriff Blubs is ejected out of the Shacktron, using parachutes made out of Mabel's sweaters to land inside the Fearamid. Everyone lands right next to the human throne, but Dipper is unable to figure out how to unfreeze everyone. Gideon Gleeful, trapped in a cage hanging from the ceiling, explains that Mayor Tyler is the load-bearing statue in the human throne, and if he's pulled out, the whole throne will fall apart. When Dipper does so, it sets off a chain reaction. As the chair collapses, Gideon's cage is knocked to the ground and breaks, freeing him. Gideon rips off his sailor suit only for his normal outfit underneath, yelling "No more sailor suits!!!" The residents are returned to normal, and Ford unfreezes as well. When Dipper and Mabel ask Ford what Bill's weakness is, he explains that the way to thwart Bill is by using a zodiac with ten symbols. When each person that correlates with a symbol stands on a drawn version of the zodiac and they hold hands, it can create a force strong enough to vanquish Bill. Meanwhile, Bill is still fighting the Shacktron after having regenerated his eye. It manages to pin Bill to the ground, but Bill realizes its legs aren't inside the Bill-Proof barrier. Bill utilizes this weak spot to flip the Shacktron over, tear off a leg, and smash it into the Shacktron, sending it flying, whilst making leg and golf puns. Back in the Fearamid, the townsfolk that is not represented in the zodiac run away, leaving only Dipper, Mabel, Soos, Wendy, Gideon, Robbie, Pacifica, McGucket, Ford and Stan. For a moment, it seems that they will be able to complete the ritual. However, after Ford corrects Stan on his grammar, Stan pushes Ford, breaking the link as the duo begin to fight. In the confusion, Bill appears above them, having beaten the Shacktron. Bill sends a wave of fire at them, burning the zodiac away. He also traps Stan and Ford, binding them with ropes. The resistance prepares to fight against Bill, but when one of them makes it clear they are not afraid of him, the demon asserts that they should be, and then snaps his fingers and turns everyone but the Pines into tapestries showing their screaming faces to prove his point. Bill then imprisons Dipper and Mabel in a triangular cell. Bill says he'll spare the twins if Ford lets him into his mind, giving him one last opportunity. Angered, the twins yell at Ford not to do it, causing Bill to fly up to them. Mabel quickly takes out a can of spray paint and sprays Bill's eye, distracting him again and freeing Stan and Ford. While Bill's distracted, Dipper takes out his size-altering flashlight and enlarges the cell, making it so he and Mabel can walk through. He and Mabel run away. Stan and Ford try to escape, however, Bill places them inside a larger cell like the one he put the twins in. Now enraged, Bill then changes into a monstrous red and yellow form and chases the kids throughout the Fearamid, threatening to disassemble their molecules. After recapturing the twins, he gives Ford an ultimatum—let him into his mind, or one of the twins will be killed. Ford reluctantly surrenders as Stan objects. Bill removes the cell and ties up Stan. Ford's only condition to the deal is that he lets his family go. Bill accepts as he shakes hands with Ford. Bill's physical form turns to stone as his mental form goes inside Ford's mind. Bill is happy that inside Ford's mind is calm and orderly with a single wooden door. When Bill opens it, he's greeted by Stan playing paddleball inside the Mystery Shack. Stan reveals that while the demon was chasing Dipper and Mabel, he and Ford swapped clothes and pretended to be each other so that Bill would enter the wrong mind. Realizing this, Bill furiously calls off the deal, implying that he intends to kill both Stan and the kids to demoralize Ford into letting him into his mind. However, anticipating that Bill would double-cross them, Ford takes out the Memory Gun, setting it to erase Stan's memory completely. Bill is trapped in the mindscape with no way out as the Memory Gun burns everything around him and Stan. He puts doubt on whether Stan knows what he's doing, to which Stan reassures that he's not planning to "use this space for much anyway." Bill desperately tries to bargain with Stan by offering him all sorts of things, but Stan is unfazed. Stan reminds him that he made the fatal mistake of messing with the Pines family. As Stan's mindscape burns, Bill's form becomes unstable and he rapidly glitches into distorted shapes, as he pleads in backwards messages to return somehow. Bill reaches out to Stan. Unperturbed, Stan punches the weakened Bill, shattering the demon into pieces as Stan's memory is completely wiped. Following Bill's death, everyone trapped as the tapestries are freed. Outside the Fearamid, Bill's cronies are sucked back into the rift, with the disassembling Fearamid not far behind. The rift itself is then sealed off and explodes into a great shockwave, restoring the entirety of Gravity Falls to its former glory. The only thing that remains of Weirdmageddon is Bill's now-permanently petrified physical form. In the final shot of the series after the credits, Bill Cipher's petrified form is briefly shown in live-action, isolated deep in a forest. This would turn out to be the end destination of a treasure hunt in the real world held months later.

Theories and hints to Bill's survival: Although the series ended with Bill being defeated and shattered in Stan's mindscape with just his psychical form left in the form of a statue, theories and hints throughout later media implied that Bill may still be out there and rather than dead, still very much alive.

The Axolotl: The strongest evidence towards Bill's survival came in the form of one of his last statements before defeat. Shortly before disappearing, he relays a distorted message that when reversed says: "A-X-O-L-O-T-L! My time has come to burn! I invoke the ancient power that I may return!" In one of the possible storylines of Dipper and Mabel and the Curse of the Time Pirates' Treasure!: Select Your Own Choose-Venture, Dipper and Mabel end up in "the time and space between time and space," where they encounter a creature called the Axolotl —a giant talking axolotl—, who lets each of them ask him a question. Dipper asks him "what [does he] know about Bill Cipher," to which he replies with a very revealing poem:

Sixty degrees that come in threes.
Watches from within birch trees.
Saw his own dimension burn.
Misses home and can't return.
Says he's happy. He's a liar.
Blame the arson for the fire.
If he wants to shirk the blame,
He'll have to invoke my name.
One way to absolve his crime.
A different form, a different time.
This suggests that, before being erased, Bill invoked the Axolotl to get redemption for his crime, and that there is one way to get absolved: he would have to take "a different form" in "a different time." That meant Bill could still be alive, paying for his crime, possibly in a different dimension. Though most of the book's content is non-canon because it follows a "choose your own adventure" format and therefore, has many possible endings, this answer could be the "one enormous 'canon' secret" Alex Hirsch said it contains (although to this day he has never specified that it specifically is the secret even though it is the most likely one to be).[11] The encounter with the Axolotl ends with him sending Dipper and Mabel back in time, without any memories of what happened, restarting the events of the book.

The Cipher Hunt: Bill's potential return is further implied in the Cipher Hunt, where Alex Hirsch warns the treasure hunters never to shake the statue's hand, even though he should be dead (ironically, the group that found Bill shook his hand), as well as Stanley's final message to the hunters, beginning with him singing "We'll Meet Again" (what Bill sang in the finale) and even urging the hunters to shake Bill's hand in congratulation, implying that Bill is alive and using his body to speak at periods. Even more unsettling is the fact that the photo of Alex's voices (Stan, Soos, and Fiddleford) can be illuminated by a blacklight - this reveals Bill, alive, saying "STAY PARANOID!" and adding his signature. This also happens when one illuminates the photo of Dipper, Mabel, Stan and Soos standing around the seemingly lifeless statue - doing so causes the eyes of the cast and the statue to glow while the words "TRUST NO ONE!" appear. However, Cipher Hunt's canonical relation to the series is unlikely, as it was a real world event and done entirely by Hirsch himself, rather than an official series related project. Additionally, events near the end of The Book of Bill and a hidden page in This Is Not A Website Dot Com show Dipper, Mabel, Stan and Soos to be perfectly fine and not under Bill's control, further proving these events non-canon to the series.

Lost Legends: More direct hints are given by two cryptograms in Gravity Falls: Lost Legends, which is a "canon-ish"[12] source. In the story "Comix Up," when the gang enters "The Grimdark Chronicles," there are symbols of Bill's Symbol Substitution Cipher inscribed on six gravestones. If one decrypts the back row of gravestones and then the front row, it reads "BILL LIVES." Moreover, another cryptogram leads to a hidden page, Shmeb-You-Unlocked,[13] which houses a similar hint. Book 9 of Shmeb You Unlocked contains "Gravitee Funnies," a comic by Stan. The last comic strip of Gravitee Funnies, "Little Dipper in Subconsciousville," shows Dipper saying "FLSKHU OLYHV!" in a dream, which decrypts to "CIPHER LIVES" using Caesar cipher. As Lost Legends' canon status is dependent on what the individual reader chooses to regard, it too is not an entirely reliable source for Bill's definitive fate.

Bill's Final Fate: Bill Cipher's true fate was finally revealed 2024 through The Book of Bill. Following his defeat and usage of his chant, a shattered and cracked Bill Cipher left Stan's head and went to meet the Axolotl. He prayed to the Axolotl to save him, arguing that he deserves another chance to live again. The Axolotl, having anticipated this moment, agrees but on one condition; Bill must absolve his crime by learning to grow without denial and pass his "hardest trial." Bill, however, fakes remorse and agrees to the deal before fully hearing the details of his "hardest trial," thinking he had successfully tricked the Axolotl into an easy resurrection. He would soon discover just how difficult this trial would be.

The Theraprism: Bill is sent to a Neutral Zone in Dimension #5150 and put in a facility called the Theraprism. There he is recommended to receive Indefinite Karmic Rehabilitation through mandatory group therapy. While there, Bill attempted to contact the Pines family through The Book of Bill, as well as convince a new and clueless person to shake his statue's hand and help him escape and restart Weirdmageddon. This indicates that the statue is indeed the key to his escape and return, but only if someone was to shake its hand. Bill also apparently made an 'apology video' for causing Weirdmageddon, but thanks to him playing a xylophone in the thumbnail, this video is likely insincere. The Theraprism eventually confiscates the book, thus ending his hopes of using it to get someone to help him escape. The last that is heard from Bill shows that he has not changed and has no intention to ever. He denies having any regrets or remorse and repeatedly insists that he's fine. He says that one day someone will let him out, with a shot of his statue, now buried in the woods and overgrown, glowing in the dark. The revelation that Bill was given a second chance, met the Axolotl and the fact that shaking his statue would indeed bring him back, does ultimately confirm the previous not 100% canon claims of Bill's survival through him and importance of the statue.

Personality: Bill is a cunning, blasphemous, eccentric, sadistic, psychopathic and physically irreverent being who finds most things amusing, particularly if they cause distress or harm to others. He is outrageous and outlandish, as well as a quick talker and thinker. Though he may come across as simply annoying, he shouldn't be underestimated; for when he is angered, he is a force to be reckoned with as he will unleash his near-omnipotent powers on those unfortunate enough to make him angry. When accused of being insane, Bill proudly agrees with the statement. He is also shown to be somewhat obnoxious, as seen when he makes his presence known to Dipper when the latter is trying to figure out a password within a limited amount of time. Occasionally, his voice tumbles to a lower pitch (usually when emphasizing a statement). As a demonic dealmaker, Bill is also shown to be a highly manipulative, very charismatic and charming conman being able to easily trick Ford Pines into believing that he was just a humble muse who simply wished to help benefit the human world by providing him with forbidden knowledge when in reality he was only ever using the researcher for his own purposes with the book smart Ford noting that the only person who could've possibly seen the ruse for what it was, was his much more street smart brother Stan Pines, who was himself an expert conman. Bill is not one who believes in rules. Instead, he follows his own selfish philosophy which means doing whatever he wants without care for the consequences. He thinks of laws and physics as senseless and displays an irresistible urge to break those rules down by causing absolute chaos however he can. The lives he ruins hold no merit to him and he finds amusement in tormenting and turning people's worlds upside-down. He also sees reality as "an illusion" and values its destruction. When possessing Dipper's body, Bill is shown to be rather masochistic, hurting himself in various ways for the thrill of it, exclaiming that "pain is hilarious." He seems to have little knowledge about the human body, specifically its physical limits. This comes back to haunt him when he fights Mabel over Journal 3, as he eventually falls down, physically exhausted. As shown in "Weirdmageddon Part 1," he also reacts sadistically whenever a would-be subject oversteps their boundaries, such as when he shuffles "the function of every hole in Preston Northwest's face", and in "Weirdmageddon 3: Take Back The Falls" when he decides to kill one of the Pines twins "just for the heck of it." Bill also suffers from PTSD and Survivors Guilt. Though he repeatedly claims to feel no regret over the destruction of his home dimension even going so far as to say that he had "liberated" them from their dull lives, it is shown repeatedly that this is just another lie he tells himself to avoid the truth. Though he immediately brushes it off, in The Book of Bill, he shows a rare moment of genuine remorse as he recounts the destruction of his dimension. Stanford also recounts a time from one of the lost pages of Journal 3 where he and Bill talked about the destruction of his home, with a shocked Ford asking what it was destroyed by, to which Bill stared off into space for a while and replied in an uncharacteristically somber tone of voice "By a monster." On the silly straws page, there is a code which once deciphered says "Twisted out of shape after the kill, the ghosts of his family are haunting him still."

Appearance: Bill is a yellow, two-dimensional and triangular creature that bears a strong resemblance to the reverse side of the Great Seal of the United States, which in turn consists of the Eye of Providence and an unfinished Egyptian pyramid. The color of his body briefly becomes lighter when he speaks. Often when he appears, the area he appears in takes on a washed-out monochrome appearance. It is unknown whether this effect physically occurs, or if it is simply a visual effect to bring attention to his appearance. He has a single large eye with a slit pupil, rimmed with four short black lashes on the top and bottom, though sometimes there are three on the top and four on the bottom. He moves around mostly by floating about and rarely actually stands on his own legs. He has thin, black limbs, wears a small, black bow tie and a tall, thin, black top hat that floats just above his head. He has no mouth whatsoever, though has been shown using his eye as one to drink something. His arms do not seem to be in any fixed position and can move along the perimeter of his body without any difficulty. He occasionally carries a small black or yellow cane. The lower part of his body has a brick-like pattern of lines. He has no fixed size and he has been shown to be as small as a hand and tower over the Mystery Shack. However, when he gets angry, his voice deepens significantly, the color of his body turns red and his eye turns black with a white pupil, (in close-up, his eye shows a red iris.) and everything on his body that was previously black turns white. When possessing someone, that person's skin becomes pale and their eyes become yellow with black slits like Bill's. The voice also changes to Bill's. In the Book of Bill, after being sent to the Theraprism, Bill is now shown cracked with glitches being exposed after being punched by Stan.

Mabel is an energetic, fun, goofy, bouncy, hyperactive, enthusiastic and free-spirited girl. She is an optimist who skips through life with a braces-filled smile and an assortment of extremely colorful knit sweaters. It is Mabel's outgoing personality and fearless curiosity that comes in handy when Dipper needs help solving a mystery, even if she isn't always aware of her silliness. She shows a more sophisticated attitude when it comes to art. Despite all the weirdness in Gravity Falls, Mabel is always a "glass-half-full" kind of girl. She is rarely angry or upset, and generally keeps a positive outlook, even going as far as to think of a blot that looked comically like a mushroom cloud was a lollypop. Despite her cheerful attitude, Mabel is shown to be quite sensitive, as she can occasionally get her feelings hurt, especially by her rival, Pacifica Northwest. She is somewhat naive at times. She avoids lying and is a terrible liar, often blurting out whatever it is about which she is trying to lie. Mabel is aware of her charm and cherishes her cuteness and beauty. She generally has a high opinion of herself, considering herself "irresistible" to boys ("Tourist Trapped"), claiming that she does everything perfectly ("The Time Traveler's Pig"), and fully believing she is of "pure, perfect heart" ("The Last Mabelcorn"). Mabel has also on occasion made mistakes that accidentally backfire in some way. For example, she shoves her brother in a closet with Wendy in "Into the Bunker" so that he could end his anxiety and admit his crush on Wendy. This unintentionally endangers them when they encounter a dangerous creature. Also, in "The Love God," she also caused Wendy's friend group to temporarily break up after she had made Robbie Valentino and Tambry date each other. However, like her brother, Mabel has the best of intentions and she will always try to choose the right options for the happiness of herself and others. She also proves to be clumsy, as in the episode "Soos and the Real Girl," when Mabel was playing and suddenly collides with the front door of the Mystery Shack and gets a brace stuck on the metal door. Mabel is a preteen dreamer with a world filled with preteen novels (mostly about vampires), and her fixation on finding her one true love occasionally lands her in sticky situations. She sometimes has her moments of self-centered behavior, most notably when it comes to boys with whom she's infatuated with. In episodes like "Sock Opera" and "Boyz Crazy," she has been known to prioritize her own desires over that of others, but she, in the end, owns up and accepts her mistake. Another similar occasion is in "The Time Traveler's Pig," where she makes Dipper sacrifice his chance with Wendy to let her win Waddles (though Dipper in that episode has been explained by Alex Hirsch as being in the wrong given his manipulation of time to achieve a goal that only pleases him). In the book Gravity Falls: Lost Legends, it is revealed in the story "Don't Dimension It" that after being stranded in an in-between world full of alternate versions of herself, Mabel realized, due to being stuck with multiple versions of herself who all act in their own interest against her, how self-serving she sometimes acted. However, given the events of Lost Legends are considered canonish, it is up to the individual to decide whether or not the events in this story really occurred.