Actors are agents of change. A film, a piece of theater, a piece of music, or a book can make a difference. It can change the world.

Who I am gets in the way of people looking innocently at the parts I play.

A lot of the time I hate the theater. You think, 'I have to climb Mount Everest, again, tonight.' Oh, the theater is a scary place to be.

I knew with Snape I was working as a double agent, as it turns out, and a very good one at that.

I have every sympathy for writers. It's a mystery to me what they do. I can edit. I can cross out and say, 'I'm not saying that' or, 'How about we move this to here? Wouldn't that make that bit of the story better?' But where any of it comes from is beyond me. I will never write a play or a novel.

I am hellbent on defying your expectations, at every turn, and even if you don't like what's being done, I dare you to find it uninteresting.

The audience should feel like voyeurs. Their response is absolutely crucial.