I would really like to do some more because she’s a good character, she’s not like a silly little girl. She’s quite good fun, she’s quite strong and she’s has quite a dry sense of humour, which is nice.

It would be good to just see what they come up with really. I can imagine it would go on because Richard’s such a good Doctor Who. We’ve such a good cast - we have Derek Jacobi, playing the Master, real stellar cast. I could imagine it would go on indefinitely.