I would be sitting in my flat watching TV, and 'Doctor Who' would be on with my flatmate there. I would have loved to share the fact that I was the new Doctor, but I couldn't. I was going mad. My dad was rather flabbergasted. When I told him, he laughed. He was excited, elated and very proud.

As we get older - perhaps I'm just speaking for myself - we can get too cynical.

Even now, I'm very superstitious, in silly ways. I always put my left boot on first. Or on set, I always tie my bow tie from right to left.

It seems like there's a real appetite for science fiction in the States.

A theocracy is a government ruled directly by God, and for us it means "Theocracy within". In other words, trying to live by God's principles instead of just living selfishly.

I am a fan of a bright sock. They're bold.

Amy Pond, there's something you'd better understand about me 'cause it's important, and one day your life may depend on it: I am definitely a mad man with a box!