I look very different from how people expect me to be... Clearly they think I'm a great big fat viking.

At some stage I'm going to have to say, 'Right, that's it. I'm stopping for a bit'.

My dad was an actor, and my older sister is an actress, and so I very much remember thinking, "Well, of course I'll do that as well." But I never imagined myself as an actor who would be in films. I always only thought of myself being in a play or a musical and maybe the odd episode of [U.K. '80s TV drama] Casualty. My backup plan was to do something with children, to start a nursery school or work with underprivileged kids. And I still dream of maybe doing that in some way. I've always got children in my house, always.

But I really can't and I actually don't like switching off because I worry that I might lose my thread, or something. I fall asleep and I hope to God that I'm going to dream about it, because then I don't have to put it down.

I knew it was going to be important that if I had an audience understand who she was, then all those things had to come from a place that was grounded, as opposed to being tics and manners and twitches. I didn't think it was going to be as rich, perhaps, as if I was going to make it more emotional.

If I had a child, I wouldn't let them go to drama school. At times, I was really unhappy there.

I never had crushes on anybody when I was younger; I really didn't.