Well obviously we did offer it to Tom first, but Tom and Tom's agent and I have been in discussion over a number of years about him coming and doing work with us. We haven't got to that point yet where he wants to work with us on our projects. Who knows, in the future he may well do, but he declined to take part in Shada.

Once he had done that we had to find another Doctor, and the obvious Doctor to go for was McGann, because it was a new story for a new Doctor, effectively. It also wouldn't muck up any continuity with any of the other Doctors and it made it easy for us to drop Lalla Ward's character as Romana in. We slightly changed things so that she's no longer that Romana, she's now the High President of Gallifrey Romana.