For an actor, playing one character and transitioning to a completely different one is a dream come true.

I talked to people that I'd done theater with, older actors and stuff. There's a lot of people who go into the business, and they must think they're good, or they wouldn't be in it. Why do you think that you're good enough to go into the business and make money at it? So I really wanted to ask myself that question a lot. Because it was an important kind of thing that I was going to do. I really wanted to do it, I loved it, and I thought that I was good enough that I could make money at it. And that's really what it came down to.

Well, I was a drama kid.

When I was in college I did a lot of comedy.

To survive in a lot of male-dominated situations - the police, the military, what have you - you put on a bit of the crass, blowhard thing, because you just can't survive being the nice guy in those environments.

Look, we're in the time of the anti-hero.

Actors like to play bad guys because they're more fun. They also win more awards.