I rang Steven Moffat up the other day and found out everything about the new series,” said Smith, speaking at the recent Calgary Expo in Canada. “It sounds really good! I was really jealous actually.”

“[Capaldi] will be different, and it will be a different show and it will be a new show and that’s what Doctor Who is about, and I’ve got to let it go. And the great thing about it is everyone has their own Doctor. So, hopefully, there’s a few eight or nine-year-olds out there who I’ve claimed.