Russell T. Davies is just such a genius that I think in his hands we could be quite confident that it was going to be a success. But no one realised just how much of a fantastically huge success it was going to be and it's just so delightful now that there's a whole new generation of kids growing up knowing what Daleks and Cybermen are.
I've been lucky enough to meet most of the Doctors and they've all been amazing people. Slightly eccentric in some way, very talented actors. They just have to be a person who has really got something different about them.