Waylon Jones, also known as Killer Croc, is a notorious villain in the Batman universe. Once a circus sideshow performer due to his reptilian appearance caused by a genetic condition, he eventually turned to a life of crime. His immense strength, resilience, and cunning make him a formidable adversary. Despite his monstrous exterior, there are moments that hint at the humanity and tragedy beneath. In various story arcs, Killer Croc is portrayed as both a dangerous foe and a misunderstood outcast, adding depth to his character and his interactions with Batman.