Killer Croc (The Batman 2004)

Killer Croc as he appears in the 2004 animated series, "The Batman." Unlike the more traditional versions of Killer Croc, who is socially abused man with a skin disorder who turns to a life of crime to survive, this version of Waylon Jones is a mercenary who underwent genetic modification, hence why he appears more like an anthropomorphic crocodile. After being locked away and mistreated by those who experimented on him and the circus, he left for Gotham to start a life of crime, and become one of Batman's greatest foes. Unlike many other variants of Waylon Jones, this Killer Croc is actually quite intelligent, utilizing military-like tactics to devise heists. He also possesses significant skill in hand-to-hand combat. For these reasons, alongside a charismatic Cajun accent, this version of Killer Croc is among the most iconic and popular variants of this classic Batman rogue.