I always like seeing people transforming themselves, in whatever way that might be, and a different accent is part of that.

Back in 2005, when I was Christopher Eccleston, we saw one of the largest increases on record, of CO2 in the atmosphere. Unless we keep the rise in global temperature to under 2 degrees, by the time I'm Daniel Radcliffe or wee Jimmy Crankie, I won't be able to save the planet. I won't be here to help you -- well I might, but I'll be that bloke who won Any Dream Will Do.

I've always been a geek and slightly awkward… slightly umm… I was never the cool kid at school.

And the very fact of how you speak somehow influences who you are. The way you move, the way you think, it seeps into your being, and it's quite hard to really break that down entirely.

An accent has to do with the way your mouth works and the sounds that come out of your head, but somehow it informs everything about you.

I think it would be self-indulgent to go, "Oh, I'm going to make this character different by giving him a quirk of some kind." I don't think that serves the story, particularly. But even very similar scenes with a different set of actors, a different set of circumstances, it starts to evolve as a different character.

I still am a geek, I don't think there's anything wrong with it. I see no shame in having an unhealthy obsession with something.