The sneak peek will see the Doctor, played by Peter Capaldi and Nardole, played by Matt Lucas, team up with an investigative reporter played by Charity Wakefield and a masked vigilante played by Justin Chatwin to defend New York from a terrifying alien invasion before the full episode, ‘The Return of Doctor Mysterio’, airs at Christmas. Written by Steven Moffat, they will be joined by Adetomiwa Edun, Aleksandar Jovanovic and Logan Hoffman.