For the most part, television is filled with wacky whimsical characters designed to help us forget about the darkness that invades our daily lives. However once in awhile a character comes along who dares to make us face our own evil within. What follows are my personal favorites.

Dexter Morgan (Dexter)
Just because Dexter only preys on bad people doesn't excuse the fact that he has a compulsion to kill people in very sadistic ways. Dexter may be the perfect psycho because he is completely self-aware. He knows full well that what he is doing is unacceptable but also firmly believes that he can do nothing to change who he is.