People always tell me I'm nothing like my character. Well, hopefully not! He's a character who's very defined. He was purposefully written by Jo Rowling as very one-dimensional in the first few books, because you're supposed to hate him.

As soon as you see 'Dame' in front of someone's name, you get nervous, but Dame Maggie Smith is the most wonderfully gentle woman I have ever met. She never had a bad word to say.

I started my own record label.

It's like in politics: You can have great intentions for the world, but if you're not a good speaker and if you're not the sort of person that people can intimately link with, then it makes it very easy to say, "Well, they're not a nice person."

I'll take my clothes off - whatever the job requires.

I've started a little independent record label called 'Six String Productions' and recorded a couple of tunes, and I hope to do some more with some future artists next year. It's a real passion project of mine.

There's something very intoxicating about playing someone so volatile and someone who can lose his temper at any second.