Gluttony - FMAB

• Body Shape: Short, obese, and heavily stout. He has a distinct pear-shaped silhouette with a massive belly, yet his arms are surprisingly long, thick, and muscular.
• Head and Face: Completely bald with a large, round head. He has blank, pupilless white eyes that match his childlike, unintelligent demeanor. His mouth is disproportionately large, lined with flat, blocky teeth capable of biting through any material.
• Uroboros Tattoo: The signature mark of the Homunculus is located directly on the top of his tongue.
• Clothing: He wearing a simple, dark sleeveless jumpsuit that tightly hugs his round frame, paired with matching dark boots.

Form Transformation (The False Gate)

When Gluttony activates his true power as a failed Gate of Truth, his body splits open:
• The Torso Split: His entire chest and abdomen rip open vertically from his neck down to his waist.
• The Rib-Teeth: The split flesh peels back to reveal his ribs, which extend outward to act as a massive, jagged set of teeth framing the opening.
• The Eye of the Abyss: Inside the center of this fleshy void sits a giant, bloodshot eye, identical to the eye found on the true Gate of Truth or the eye of Father.

Gluttony was the result of a failed experiment by Father to create a new Gate of Truth through which he could access the whole of alchemical knowledge. As such, the eye that appears in the expanse of Gluttony's stomach (also enlarging his mouth) when he morphs to his true form is nearly identical to that behind the true Gate, but the space within him is pitch black and everything that has amassed from his eating habits just piles up inside. Due to this, Gluttony's Gate is in a space that lies between reality and the Gate and is full of all the objects he has eaten within a massive sea of his victims' blood. The only way for a living person to escape is to transmute themselves and another any other person who was swallowed without altering anything. This will cause the real Gate of Truth to open and entering from Gluttony's Gate may circumvent the negative repercussions of Human Transmutation and create a bridge back to their reality.

Gluttony's rib cage is capable of extending outwards large distances at high speeds. It is capable of extending quickly and forcefully enough to propel him high into the air despite his large weight. His rib cage-like extensions are primarily used to grab things at almost instantaneous speeds that forces consumed objects inside his stomach, almost akin to a beam-like projectile. While this method of "eating" is so fast that it appears instant, it does seem like Gluttony has some knowledge over what he is eating, as he is immediately able to recognize if the thing he is eating is human or not.

Despite being more agile than his size would suggest and his undying nature making him undoubtedly dangerous, he is nonetheless a fairly clumsy individual and does not possess the inherent intelligence or fighting ability of many of his siblings. This leads him to rely on his immortality in combat situations and as a result ends up "dying" more often than other Homunculi.

Enhanced Physiology: As a homunculus, Gluttony possesses strength, speed, reflexes, stamina, durability, senses, agility, coordination, willpower, and instincts superior to any human.
Digestive Enzymes: His power to eat hard objects, like steel, stems from his ability to produce a variety of digestive enzymes that act on specific substances, making them easier to chew and digest.
Enhanced Senses: Gluttony's senses of taste allow him to instantly analyze the compositions of various foodstuffs and even detect substances. His senses of smell are so strong that he can detect specific persons, objects, substances and track targets with nothing but his nose.
Regeneration: Any injuries he suffers immediately heal, even if he is decapitated, disintegrated, blown up or completely incinerated, he will still return to life in perfect condition.
Immortality: He does not need to eat, drink, or sleep. But he eats anyway because he feels hunger due to embodying gluttony.
True to his name, Gluttony is incredibly voracious, and seemingly unable to ever satisfy his hunger. However, his eating abilities vary between the anime and manga. In the 2003 anime, he can simply eat anything using his powerful jaws. He also shows great strength and some skill in fighting, capable of disarming a skilled martial artist like Alphonse and even giving Scar some trouble.

Gluttony, although under normal circumstances is quite docile, is easily prone to bouts of frenzy in which he uncontrollably tries to eat whatever crosses his path, usually someone he has been given permission to eat; which as a result, in both the manga and anime, causes him to frequently ask Lust (or any other Homunculus that he is partnered with) if he can eat them beforehand. He even asks this question to the people he is fighting at that moment. He particularly likes eating people and even mentions to Wrath that he prefers eating girls (as he finds them soft and tasty).

Despite his hunger-fueled moments of frenzy, Gluttony is very childlike and is surprisingly kindly, demonstrating several times a great love for his siblings (greeting the reborn Greed enthusiastically and showing immense sorrow upon word of Lust's death) and even respects Edward Elric's request for him not to eat Ling Yao. Gluttony also does not appear to share any of his siblings' disdain for humans, and appears to be unaware that the people he eats die permanently. Because of his childishness, lack of self-control and apparent innocence, Gluttony's intelligence is thus limited in regards to usefulness for his siblings and thus has to be 'babysat' by his more aware siblings. In the few times that he has been alone he has been shown to be indecisive and directionless, unable to make decisions for himself. He also seems to share a close bond with his older sibling Lust whom he, prior to her death, was frequently partnered with. He did have mild awareness though and could hold a grudge, evidenced by his rage and desire to kill Roy Mustang for murdering Lust. In addition, he seemed to have a good memory, instantly remembering Lan Fan while she attacked him despite not being able to see him and quickly recognizing Edward, Alphonse and the others by scent (it is implied his memory is tied to his ability to smell).

Occupation
Target Locator and Evidence Eraser for Father
Abilities
Immortality
Enhanced Physical capabilities
Able to consume any known material
Advanced sense of smell
Regeneration
Weapon
His powerful jaws