"Being from Wales myself, I'd love to have Catherine Zeta Jones as a companion for the Doctor," the Sun quoted him as saying. But his one insistence is that no one could replace Tennant, 37, as the Time Lord. "To have anyone else would be inconceivable," he said.
When the new Doctor Who boss Steven Moffat hinted last month that the sci-fi hit could become a movie, Davies revealed he had not given it much thought. "I haven't had time to spit, let alone make a film. It would be hard but it?s a lovely idea," he added.