There are other people who don't mind shouting from the pulpit and being judged for it, and they do a hell of a lot of good - real, on-the-ground, life-changing good. So I think it can sometimes be a balancing act.

[Sherlock Holmes] has to understand the world. That's very much John's [Watson] influence on him. But like a lot of the friendships and relationships in that world, it's born out of necessity. It makes him better. There's a pragmatism to it. It's not whimsical or sentimental. It's born out of necessity.

I'm really not Sherlock Holmes. I look a little bit like him and sound like him.

I know that might sound perverse because I played Julian Assange but, honestly, I don't think it would be fair for me to judge the man. I realize that makes me a bit of a hypocrite because I was portraying him a certain way, but we were always open to the fact that this was an interpretation, not any kind of exact evidence of who the man was.

For brain surgeons it's particularly difficult to deal with failure. It was fascinating to learn about that whole world.

I ate healthily, but there was no snacking, no drinking, no bread, no sugar, no smoking. Afterwards I had a pork belly roast.

Even the cerebral characters I play seem to have physical quirks. They're all "physically inhabited," for lack off a better expression. For instance, Sherlock Holmes has very particular physical gestures which are drawn out in such detail.