Waylon Jones, also known as Killer Croc, is a vicious criminal with his eyes set on controlling Gotham. Thanks to being born with an exaggerated form of Atavism, Jones possesses several reptilian traits, such as rock hard, scale-esque skin which covers his body, and razor sharp claws and teeth. How it Could Work: Killer Croc has existed on the page in many forms. In some of them he looks like a giant lizard walking on its hind legs. In others he looks like a man with scales and teeth. Feasibly a film maker could go either way with it with either subtle special effects makeup or full on CGI. Who Could Play Him: Im thinking a big, African-American actor, along the lines of maybe Michael Clarke Duncan or Terry Crews. Either way, its not only his stature that must be imposing, but also his voice. Likelihood: Hes one of Batmans more popular rogues so seeing Killer Croc in a reboot of the franchise is not all together unlikely. That is if Warner Bros. wish to keep the property fresh and introduce fan-favourite villains that weve never seen on the big screen before, which I'm sure they do.