The Caligula

The Caligula is a villain who will be wildly irrational, violently moody, extremely debauched, will never tolerate being told anything he doesn't want to hear, and probably afflicted with a god complex. In short he will be a Psychopathic Manchild with the power of life or death over everyone whom he can reach. He may be a sexual deviant, or he might take pleasure in the pain and suffering he causes. He may indulge in renaming cities or even the entire country after himself or throwing out increasingly ridiculous decrees with brutal punishments in store for anyone who breaks them.

Whatever form his or her madness takes, one thing is certain: to do anything the Caligula finds displeasing is to inevitably be dragged off to a grisly death or worse. Of course, any number of things might trigger his rage, and he might even decide on a whim to punish those who have not done anything at all. And while all of this is going on, the land over which the Caligula rules is rapidly going down the drain due to his neglect. Here in particular, he has a decided advantage over most other crackpots when it comes to messing things up: he can start wars. Be it for the perceived personal glory or his obsession with perceived enemies, the Caligula's country will probably be in a constant state of war.