I met Tom Baker doing a voice-over when David [Arabella's friend, David Tennant] wasn't at all well known. We were doing this voice-over together and I said to Tom, 'Oh, my friend's a really, really big Doctor Who fan,' and he replied, 'Wait!' He got his cheque book out and asked, 'What his name?' I said 'David Tennant'. He wrote, 'To David Tennant, seventeen pounds forty five', signed it and I asked him what it meant. He said, 'He'll know'