I do all kinds of roles - nerd, psycho, nerd, psycho, nerd, psycho - and occasionally someone kind of normal. It's weird, when I lived in Austin I was always cast as pretty normal people. But when I moved to Los Angeles I was immediately branded a psycho.
Because when you have millions of people with this kind of need for gratification, and the culture is saying that it's possible for everyone to satisfy all of their needs and desires all of the time, there are obviously going to be clashes - clashes of ego.

