Source: batman.wikia.com

8. Maxie Zeus

Oh, man, I love this guy.

Maximillion Zeus was a Greek professor (or sometimes a history professor, because comic book continuity is weird and bad, especially when it comes to obscure Batman villains) who went crazy when his wife left him and became convinced that he was the actual representation of Zeus himself.

I kinda get where he was coming from. I mean, if my girlfriend suddenly left me, I'd probably also assume I was actually the physical representation of Zeus. Or at least, like, Hestia.

So Maxie also became a major crime boss and super villain, because this is Gotham. Maxie broke out of Arkham several times, but he was always recaptured. One of those times was because he ran into a tree and knocked himself out. Knightfall! Worth it, if only for that one scene. Dude also once teamed up with some Wonder Woman villains.

So, like, actual Greek gods. That must've been weird for the pantheon. Like if the Starship Enterprise just accidentally hired a cosplayer.