I'm not from a particularly sci-fi background. I'm not anti sci-fi at all, but I've never been known as a sci-fi writer and, suddenly, I was creating a flagship BBC sci-fi show, which is terrifying sometimes.
I think my attitude's different when I'm in the different places. I don't walk around in character. I try not to walk around with the accent, but those little things change you, whether it's your hair, your clothes, your shoes or a different silhouette. People absolutely look at you differently.