Guest Stars Isla Merrick-Lawless as Princess Mary Mimi de Winton as Ursula Pole Matt Carr as Henry Pole Arthur Bateman as Reggie Pole Morgan Jones as Edmund Dudley Mamadou Doumbia as John Blanke Luke Mullins as William Compton Nick Barber as Edmund De La Pool Philip McGinley as George Neville Grahame Fox as Sergeant at Arms Felix Garcia Guyer as Lieutenant of the Tower Ben Dilloway as Hunter