It's very rare that I play cool people. I'm not sure what that says about me.

It's been four years. It's been the best four years. It's been wonderful, it's been a privilege to work under Steven Moffat. But I think when you gotta go, you gotta go It's sad, I'm going to miss it. I'm going to miss Comic-Con as well. It wasn't an easy decision, but I dunno, you can't play it forever. And, look, they'll get someone amazing and brilliant, and that's the great thing about the show. It continues, and it will get bigger and better. And you'll forget about me.

I constantly watch 'The Simpsons' and an English cartoon called 'The Raccoons' and 'Gummi Bears.' I was obsessed with ninja films, and the 'Teenage Mutant Nina Turtles,' I used to love that as well.

I quite like the transitions of being an actor, because you get to explore these little pockets of life. So if you're playing a builder you get to know about building, if you're playing a scientist or a physician or something you get to know about physics. And similarly with this world I like exploring their culture, that very sort of upper middle class, addictive... that's part of the reason I love it.

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

When I write, I'm writing as a fan, and trying to come up with songs that I would want to listen to.

I think that every artistic venture is a risk, and it has to be that way, so you do as much preparation as you can and make that as thorough as you can possibly make it, until you turn up on set. It's about taking risks, and some might work and some might not, but that's what makes it interesting.