"Torchwood is not one of the shows we went into thinking about a yearly return. It’s about Russell T Davies - he has a lot of things on his plate. If Torchwood is not at the top of his list, that will affect the future of Torchwood."

"It's interesting as to how long I can stay in the science fiction world. Personally I think I'm coming to the end of it now and I've saved the world and blown up the world too many times, and I hope I leave Torchwood in rude health, and then I'll probably move onto something else then. It's time to write something just where people talk in kitchens, at least for me. But I hope we literally leave the franchise in in a very strong position that other writers come in and take it over."