Waylon Jones, more commonly known as Killer Croc, is a notorious criminal and one of Batman's common opponents. Born with a form of atavism and a rare mutation, and has the strength, speed, agility, fangs & claws, healing rate, amphibian attributes & aggression of an actual reptile. After years of being raised by an alcoholic aunt who bullied him over his appearance, Waylon killed her, pushing him to a life of crime.
Croc's genetic mutation caused his body to grow to grotesque proportions, with his skin becoming hardened and scaly. Originally an alligator wrestler, Killer Croc eventually became detached from humanity, and his misanthropy grew as did his bestial nature. This allowed him to murder, mutilate and cannibalise dozens of people for no other reason than sheer misanthropic hate and lust for blood.
Born with a form of atavism and a rare mutation that made his skin green and scaly, Waylon Jones was raised by an alcoholic aunt in a northern Florida slum. Relentlessly bullied because of his appearance, he eventually snapped and was sent to a reform school. With little education and a sociopathic hatred for all "normal" people, Jones became a petty criminal and a fully fledged murderer by his 18th birthday.
- Killer Croc (Distribution Center)
- Killer Croc (Cape Carmine Lighthouse)
- Killer Croc (Gotham Under Siege)
- Phantom Killer Croc
- Killer Croc is an iconic villain who appears at various locations in Gotham City as part of the More Than You Can Chew and Fanboy feats. If a hero encounters him he will knock them back and then leave, if a villain encounters him he will make a comment and then disappear.
- Killer Croc is one of the possible bosses in the Turf War: Team Joker duo of the Riddled with Crime episode.
- He is one of the random bounties in the Amusement Mile's Gang War (Bounty: Joker & Riddler Allies / Wanted: Joker & Riddler Allies).
- Killer Croc is the mission giver for the weekly Metal Massacre mission in the Metal Part I episode.
- Killer Croc shows up in the Cape Carmine Lighthouse duo twice. His tactics are a bit different, as he can spit bile at you that will do continual damage. It can be washed off by getting close to a water source, which will then heal you slightly. He shows up again after you meet Nightwing with Deathstroke in tow.
- Killer Croc is an iconic enemy for heroes in Gotham Under Siege (Amazon Fury Part I DLC).
- Killer Croc has been hired by the Falcone crime family as muscle in their turf war with Bane. While the Joker plots to undermine Bane's venom quality, Killer Croc is pursuing a direct vendetta with Bane. Joker comments that there's no need to pay Croc to kill Bane; he'd do it for free.
- Killer Croc first appeared in Batman #357 (January 1984)
- Killer Croc's voice was provided by voice actor Edwin Neal.