Steven Moffat, lead writer and Executive Producer, said, “An amazing guest cast for a brilliantly creepy two-parter by Toby Whithouse. Peter Capaldi and Jenna Coleman are back in Cardiff, back in the box, and back in action – for one of our scariest adventures yet!”

On set filming for the new series, Peter Capaldi added, “The adventures begin again for myself and Jenna and I’m delighted to be back filming my second series of Doctor Who.”