One of the saddest things I've ever done is download 'I'm A Teenage Dirtbag' by Wheatus and play along with it with my headphones on. Oh, God. If you were to walk in and see me do that, you would really worry for me.
There's something wonderful about that sort of Poirot, Agatha Christie-style investigation: cross-questioning all the witnesses and checking their stories, looking for means, motive, and opportunity.
I've been going bald since I was about 17. I'm still hanging on to my hair for dear life, but I do sometimes wonder - should I get a wig?
I'm always a bit wary when people say in interviews, 'I'm at the happiest place of my life that I've ever been.' I think, 'Really? Are you?' Life is a mix, isn't it?
As a committed Whovian, I cannot believe my luck in joining the Twelfth Doctor for one of his inaugural adventures. My only worry is that they'll make me leave the set when I'm not filming.
I did play a romantic part once - Orsino in 'Twelfth Night.'