If you're ever writing a book, game, screenplay, or fanfic and happen to need a name for your world threatening villain or angst-riddled antihero, go ahead and name him whatever you like. Anything at all will do: Jayden Dragonspit, Darkgod Snifflepants, F*cko the Destroyer. Whatever. Just don't name him Cain, Kane, Kain, or anything that sounds even a little bit similar. We have enough of those. 1UP lists a few of the more memorable examples.