Comment on Cartoon Villains - 055 - Crocosaur! by CreedStonegate
Unlike most villains, Crock was more of an opportunist looking for an easy way for him. But when plans backfire, he's almost as bad as Dick Dastardly.
different shows stretch the definition of villain. There's a fridge that sucks Sam And Max into another dimension that I've been considering for a while and the HUD desk from The PJ's. Now those are outside the box villains. 
There's still a very large Rogue's Gallery out there.