I really wouldn't. We have such good writers on the show. And I couldn't walk up to Russell and hand it over and say 'Here's 45 minutes for you' and … - David Tennant

Billie and I got chased through the traffic once in a car. You expect paparazzi to do that, but when it's normal people you start to think the world's gone a bit mad.

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 was once asked for my autograph in the shower on one of my rare visits to the gym. I was washing my hair, facing the wall, when I was tapped on the shoulder so already it's quite inappropriate. I turned round and there was another naked man standing there with a piece of paper. And I think 'if you can't see how inappropriate this I am just going to have to play along' so I took the paper, which is slowly becoming mulch, and carved my name in it.