Got through it without fluffing, that's the main thing any actor can hope for.

I suppose it's different to your time on Doctor Who in that you don't have to lie down?

No, I'm at full height, I'm in the studio, I can actually catch actors by the eye, it's fantastic. I don't see them at knee height now, which is lovely. They're quite tall really, some of them.

Is it true in rehearsals you were actually on the floor?

Actually on the floor, yes, a little bit. The BBC didn't give me a trouser allowance which was rather a shame, but yes, I was around on the floor so that physically the actors could see where K9 was going to be. Simple as that, and cheaper.