I drag a lot of stuff round with me that I don't need.

I don't call myself an expert because I've played experts. I know a little bit about very little. But it's very hard to not be drawn into saying something, especially if it has to do with the work.

When you're a kid, 'Star Trek' is a slower burn. It's funny, it's entertaining, but it also has a maturity about it - which is its universal appeal, I think.

I'll always do 'Sherlock' - it's something I'm not going to give up on.

Those are more universal things than some of the characters I play, who are slightly sociopathic. I keep reminding people I can do ordinary.

I still find to give an interview to be difficult, as any person who deals with the press will tell you. That's why it's nice, with this one, to talk to a friend. But sometimes with a coffee and a friendly smile, I suddenly start talking without thinking about how it's going to be read.

I never really got obsessed about one thing for long. I was a bit of a butterfly and a magpie.