Daniel Fenton (DD)

Dark Danny
Dan Phantom/Plasmius
Dark Danny Phantom
Phantom Plasmius
Phantom
Future Danny Phantom
The Ultimate Enemy
Old Man (by Danny)

Phantom

Eye transformation
Ghost sense
Flight
Intangibility
Invisibility
Overshadowing
Ectoplasmic/energy blasts
Energy strike
Ghost stinger
Ecto-energy constructs
Ectoplasmic goo
Telekinesis
Ghost portal creation
Technopathy
Pyrokinesis
Atmokinesis
Spectral body manipulation
Cloning/duplication
Shapeshifting
Voice manipulation
Super strength
Super durability
Super speed
Ghostly wail
Regeneration
High intelligence
Manipulation
Intimidation

Destroying Amity Park and other places in the world.
Torturing, hurting, and killing humans and ghosts.
Tormenting and attacking Danny Phantom.

Destroy Amity Park and other places in the world (succeeded for a while).
Kill anyone who poses a threat to his existence.
Defeat Danny Phantom and prevent him from thwarting his existence.
Kill his family and friends to ensure his younger self becomes him (all failed).
Escape the Fenton Thermos and destroy Danny Phantom once and for all (ongoing).

Mass murder
Assault and battery
Breaking and entering
Conspiracy
Mass torture
Identity theft
Stalking
Psychological abuse
Terrorism
Usurpation
Incrimination
Mass arson
Attempted familicide
Treason
Kidnapping
Brainwashing
Worldwide destruction
World domination
Nigh-omnicide
Crimes against humanity

Paranormal Supervillain

Danny was a benevolent character who, after gaining ghost powers, used his abilities to protect the innocent from evil ghosts. However, his desperation to secure his future ended up costing him everything, leading him to spiral into misery and guilt that resulted him him wanting to separate his human and ghost halves.

After the procedure, Danny Phantom became a hostile, power-hungry ghost like all the villains he ever faced, choosing to separate Vlad from his own ghost half and then fusing with it to become even more powerful. As a result of the fusion, Dark Danny became the embodiment of all of the worst aspects of both his and Vlad's personalities, including Vlad's arrogance and cruelty towards others and Danny's more unpleasant traits while having none of their more positive traits such as their shared love for Maddie and Danny's kind-hearted nature. He also seemed to retain his hatred for Vlad despite being far more evil than him telling Jazz his plans to destroy his portal once he gains access to it and presumably him as well.

Dark Danny himself is completely heartless and utterly callous. While most of the other Danny Phantom villains had some level of morality and are honorable to some extent, he has nothing of the sort, making him the most evil villain in the show. He is brutal, sadistic, destructive, ruthless, misanthropic, vicious, and remorseless, as well as being perfectly willing to kill anyone, even if they were people his human self cared about, in order to fulfill his own goals. He also proves to be depraved enough to be willing to risk destroying an entire timeline for the purpose of ensuring that his younger self will become him. In addition as a result of possessing no humanity whatsoever, Dark Danny can outright accurately be described as a psychopath.

Dark Danny is also highly prideful, cocky, arrogant, and egocentric, most likely because there was no one in the future able to fight him and this made him underestimate his younger self. As such, it was his arrogance that proved to be his major weakness, as it led to his defeat by his younger self as he never expected him to master the Ghostly Wail several years before he did. He proved just as inhumane and merciless to even his fellow ghosts, as he injured, scarred, or otherwise deeply embittered many of the villains in the series in his realm. It's unknown if he did this out of sadism, out of spite for all the trouble they caused him when he used to be a hero or both.

For all his pride and arrogance, he is also very intelligent, manipulative, and persuasive, as he was able to fool his younger version friends in his world into thinking he is the one true Danny, at least for a brief time until he revealed his true colors. He is also shown to have a rather warped and sadistic sense of humor, as he quipped to his younger self's parents, "Hello? Danny Fenton? Danny Phantom? Ever notice the similarity?", though this could have been to sadistically taunt at his parents rather than make a joke. Thus, his attempts at humor make him more heinous than anything else. He also showed no remorse when trying to kill his past self's parents, friends, and teacher.

Though he comes off as sadistic and arrogant by heart, he is also actually capable of fear, as he was stunned to see his counterpart developed the ghostly wail, a power that he wouldn't develop for a decade and was seen worried when Danny used it on him a second time. This also shows that, as with Vlad, Dark Danny can be highly overconfident in his abilities as he didn't even prepare in case his counterpart did most.

After fusing with Vlad Plasmius, Dark Danny appeared the same as he did as Danny Phantom, except that he had Vlad's pale skin, red eyes with black rims, fangs and pointed ears. His white hair also flowed like fire. After aging a decade, Dark Danny became taller and much more muscular. His hair is longer and he has grown a goatee too. His costume's arms and waist sides are now white and his gloves are black, and now sports a cape that's white on the back and black on the underside. After fusing with Clockwrok.

Rise of the Hero
Danny Fenton's parents, Jack and Maddie Fenton, were aspiring ghost hunters who built a portal leading into the Ghost Zone; the realm where ghosts and other supernatural creatures reside. However, it seemingly failed to work, causing them to become disheartened and leave. With support from his friends, Tucker Foley and Sam Manson, Danny then decided to put on a protection suit and go in the device to see what the problem was, but then accidentally hit a switch that activated the portal with him still inside. As a result, his DNA became infected with ghostly ectoplasm, thus changing his appearance and granting him ghost-like abilities.

With his new ghostly powers, Danny Fenton became the superhero, Danny Phantom, using his powers to protect humanity from supernatural threats. These threats included his father's old friend, Vlad Masters aka Plasmius, who was also infected with Ghost DNA but chose to use his powers for his own evil ambitions, and Valerie Gray, a young ghost hunter with a deadly grudge against all ghosts, especially Danny. He also faced off against the dreadful Fright Knight, and his diabolical master, the self-proclaimed Ghost King, Pariah Dark.

Dark Danny kills his human half
The newly created young Dark Danny kills his human half.

Now free of any moral restraint and no longer capable of feeling empathy or remorse whatsoever, Dark Danny commits his first heinous act by horrifically murdering his former human self before blowing up Vlad's mansion. He then unleashes a reign of terror throughout both the Human and Ghost Worlds, destroying countless lives while heartlessly torturing his old foes and former allies alike.

But while the rest of the world was reduced to ruins, Amity Park was able to survive Dark Danny's onslaught by erecting a giant anti-ghost shield strong enough to keep out the all-powerful ghost, with Valerie Gray acting as its protector. Unable to break the shield, Dark Danny left the city alone for the time being until he was powerful enough to penetrate it. During this time, he crossed paths with Clockwork, the Master of Time who apparently tried to stop him, and Fright Knight, who came to serve Dark Danny as his new master. Then, ten years after his creation, the now adult Dark Danny finally developed his most powerful technique: the Ghostly Wail.

Dark Danny has the combined powers of both Danny Phantom and Vlad Plasmius at his command, making him extremely powerful. Dark Danny is arguably the most powerful ghost that has ever existed, (due to only time traveling being able to stop him) and possibly more powerful than either Vortex, Undergrowth, Nocturn, Freakshow (with the Reality Gauntlet) and Pariah Dark, the Ghost King. It assuming Dan raw power rivals or even surpass the Ghost King which is taken into consideration that the Fright Knight serves Dark Danny, it is possible that he is the only one to beat Pariah without help or the aid of a weapon (even when the lateral is using the Ring of Rage and the Crown of Fire). This would explains why the Fright Knight chose to serve him. Similar to his young counterpart Danny and possibly Vlad, he can sense nearby ghosts and half-ghosts with red wisps of mist emerging from his nose when one is nearby. Dark Danny's ghost powers grant him superhuman strength, speed, agility, and durability, and he can fly and turn invisible and become intangible. This along with his experience made defeating his past counterpart an easy task before his pride led to his downfall.
His most powerful attack is his Ghostly Wail, a powerful shriek of sonic force that sounds like moaning ghosts and can use it more than once without losing energy, unlike Danny who can only use it one or two times before feeling a severe energy drain. Dark Danny has a wide variety of powers and can possess other people, fire ectoplasmic energy blasts, unleash a pseudo-electrical attack to shock people, generate an ectoplasmic energy shield, create duplicates of himself, form bonds made of ectoplasm, teleport, shape-shift into a version of his younger self, create portals to the Ghost Zone, manipulate the shape of his body, use a sleep beam to knock people out, turn into ghostly vapor and fuse objects into beings with his intangibility powers, making it unreachable by human or ghost means. That said, while he is powerful, him getting defeating by his younger self's Ghostly Wail proved that he has limits. Even then, that was only because he underestimated him and they had a life link.

Due to him now existing outside of time and Danny changing the future, there is nothing preventing him from trying to eliminate Danny since they no longer have a life link. Since he exists outside of time, if it stopped, he wouldn't be affected by it, proving he is nearly unstoppable at the moment.

One day, during an assembly at Capser High School, Mr. Lancer made a public announcement that all the students had to take the C.A.T. (Career Aptitude Test) to determine their upcoming future, and those who fail will apparently have to spend the rest of their lives working at the Nasty Burger. At first, Danny studied hard to prepare himself, but became frustrated by how difficult it was and feared that he would ultimately fail. Desperate to succeed, he used his ghost powers to steal the C.A.T. answer booklet to cheat on the test. However, Mr. Lancer, who had been suspicious of Danny finishing the test so early, asked his parents to come to the Nasty Burger for a meeting about his "future". Sam and Tucker, as well as Danny's older sister Jazz, were also there at the time. At that moment, the Nasty Burger's unstable vat of condiments overheated and exploded. Danny was able to survive thanks to his ghost powers, but didn't have enough time to save his family, friends or teacher. The tragedy left Danny orphaned and completely alone, racked with guilt over causing the deaths of his loved ones. With no-one else to turn to, he had to move in with none other than Vlad Masters, since he was close to the family and the only one who could possibly understand his situation. Despite the hatred that the two had shared for each other prior, Vlad treated Danny with great sympathy and they eventually bonded, which likely led to Vlad reforming. However, Danny still couldn't deal with the pain and guilt anymore, so he asked Vlad to remove his ghost-half from his human body, believing that it was responsible for tempting him cheat in the first place, and thus responsible for the death of his friends and family. He also believed that his ghost-half would be freed from all his human emotions, thus ridding it of the pain that he was feeling. Vlad reluctantly agreed and used the Ghost Gauntlets in a surgery to tear Danny's ghost half from his human half, making them into separate entities. But soon after the procedure, Danny Phantom, now free of his human-half's conscience and filled with all his hatred and selfishness, became hostile and threw Vlad against the wall. Craving for even more power, Phantom used the gauntlets himself on Vlad, separating him from his own ghost half as well, then turned intangible and flew into Plasmius, resulting in the two ghost halves fusing together, with Danny as the dominant personality. Unfortunately, Vlad's evil side completely overwhelmed and destroyed whatever good Danny Phantom may have had left, corrupting him into an extremely powerful and malevolent ghost. And thus, the once heroic Danny Phantom was no more, and the villainous Dark Danny was born.

rather be alone since His engaged girlfriend is gone