A sociopath can imitate emotions, where a psychopath really doesn't have that capacity. They can't fool people into thinking anything and they're usually lacking major empathy for anybody besides themselves.

You get a role like this in a big action movie [like Jack Reacher] and you can go one of two ways: you can paint in broad strokes, which happens a lot in action films, or you can get very detailed.

The guy [Tom Cruise] is a machine.

I'm not a method actor but it certainly does help to have that kind of dedication. I treated my preparation like I was in the military. I didn't go out ever. I went out for drinks probably twice in five months. I lived very monastically.

I change myself a lot. Some roles you don't want to be big, bulky, muscle-y guy and some roles you want to be a lean, marathon-runner physical type. And some roles you just don't want to be in shape.

When I look at myself in the mirror, I don't see the bad guy.

I'm obsessive about my job and I want it to be as great as it can possibly be, especially right now in these early parts of my career.