Guest Stars Lyla Barrett-Rye as Princess Anne Chris Gordon as Duke of Edinburgh's Valet James Hillier as Equerry (Buckingham Palace) Sophie Stone as Princess Alice Leonie Benesch as Princess Cecille Guy Williams as Prince Andrea Richard Griffiths as Gordonstound Pupil Reilly Shanahan as Hoare Harrison Burnside as Jameson Daniel Geddes as Gordonstound Pupil Felix Cann as Gordonstound Pupil Eddy Jones as Gordonstound Pupil Edward Tidy as Junkers Crew Member Oscar Swire as Masterson Kit Redding as Young Jim Orr Ollie Pitman as Simon Harper Eliza Sodró as Princess Sophie August Wittengenstein as Grand Duke Georg Donatus Maximilian Dirr as Junkers Pilot Péter Fancsikai as German Passport Officer Péter Barbinek as German Valet Martin Marquez as Royal Detective Clive Flint as Arthur Cunningham Michael Fenton Stevens as Peter Beck Roderick Gilkison as Simon Harper's Friend Lewis MacLeod as Iain Tennant
