Waylon Jones (Earth-1352)

"I live underground. Y'all are just tourists!"

- - Killer Croc to Genetal Thunderbolt Ross

Waylon Jones is a former crocodile wrestler from Florida turned criminal under the ring name of Killer Croc. Born with an extreme rare form of atavism, Croc found a job as a henchman for the Penguin among the Children of Arkham. After being defeated by Batman and locked at Arkham Asylum. Years later, he would be released and made a member of the Suicide Squad.

Fighting the Batman
Killer Croc would meet Batman for the first time when the vigilante attempted to confront the Penguin and his Children of Arkham henchman at the Skyline Club during their raid of the establishment. While the Penguin argued with the Dark Knight, Jones just prepared for his command to attack him. The Penguin eventually left to find Catwoman, leaving Killer Croc and Batman fighting in a violent duel. Batman took a beating, and was almost killed by the lizard-like Metahuman before escaping.