Thor and Loki are defined by each other.

My instinct is to keep people guessing. I think as an actor your greatest strength is your versatility, I suppose. The blanker the canvas, the easier it is to project the illusion of a character onto it. I think there are many actors who do that very successfully.

I think the early years, the first decade of your life, is the most formative in a way.

In 'Thor,' that was my own hair. I grew it out. But I have naturally curly, blonde hair, so I'll never look like that. By the time I got to 'The Avengers,' I had come off two other films, which required me to have it very short. So I dyed it again and it was long enough to use a part of my hairline.

It's like playing tennis, you play a different rally with different people. Every actor is different and the chemistry between actors is different.

When people don't like themselves very much, they have to make up for it. The classic bully was actually a victim first.

Somehow the past is a safe place to explore our collective cultural neuroses.