It’s one of the things I loved about Billie Piper. That was a very new thing in Doctor Who – to have somebody who lived on an estate, and had a much earthier sound to their voice.

I mean, I love Jenna – I’m really sad that she’s gone, and I feel quite bad discussing the possibility of somebody else. So it’s no reflection on her. But I think it might be interesting to have somebody who’s a little more earthy!