I always like seeing people transforming themselves, in whatever way that might be, and a different accent is part of that.

I love characters who are clever and smart, and you have to run to catch up with. I think there's something very appealing and rather heroic in that.

If you speak in a different accent, you begin to move in a slightly different way. You think in a slightly different way. It's part of trying to find what makes a character.

I'm a good person, I hope. But I'm never as good as I want to be, never as nice as I want to be, never as generous as I want to be.

Getting the call to be in The Goblet of Fire was like being welcomed into the most exclusive upper circle of some elite actors' club. You sit on set with the cream of the National Theatre and the RSC, all clutching wands or wearing witches' hats.

I always like seeing people transforming themselves, in whatever way that might be, and a different accent is part of that.

I think doing different accents is part of the job of acting, really. It's something else that I quite enjoy the challenge of, to be honest.