Waylon Jones is a metahuman cannibal originating from Gotham City, with a rare skin disease and genetically regressive atavism, which gives his skin a grey, scaly appearance (resembling that of a crocodile's) being given the nickname Killer Croc. Jones embraces it by sharpening his nails and teeth, to give him a more reptilian, fierce, and animalistic appearance. It's his skill at surviving and maoeuvring in dark, dank sewers that makes him a deadly foe when he's in his element.
Appearance
Waylon is very tall and broad-shouldered, fitted with natural extreme musculature, and is completely bald all over his body. His less human traits are his filed teeth and nails, as well as his rough greenish-grey scaly skin, all resembling that of a crocodile (hence his code-name "Killer Croc"), though his filled teeth more resemble those of sharks. This is all due to the genetic disorder (extreme epidermolytic hyperkeratosis) than Waylon was born with. In addition, his eyelids are horizontal and come together on the sides of his eyes.
Abilities
Animal Physiology: Killer Croc was born with an extreme case of epidermolytic hyperkeratosis, a disfiguring skin disorder, which further evolved into a more reptilian physiology. However, it is actually a form of regressive atavism, meaning that he has inherited traits of species other than humans, which in his case are reptilian in nature. His durable skin and naturally extreme musculature, combined with his reptilian genetics and traits gave him several inhuman physical abilities.
Super Strength: Killer Croc has a degree of superhuman strength, due to him possesses inhuman muscles that are animalistic in nature. This easily makes him the physically strongest member of Task Force X, allowing him to successfully wrestle alligators in a carnival sideshow.
Enhanced Durability: Killer Croc's rough scaly skin and inhumanly strong muscles are highly durable, to a much higher degree than that of a normal human, with his skin acting as natural body armor while his muscle tissue being more resistant to impact.
Super Senses: His reptilian physiology grants Killer Croc very acute senses, especially his sense of smell & hearing.
Underwater Adaption: Croc can stay under water for vast periods of time.
