Guest Stars Billy Jenkins as Prince Charles Harry Hadden-Paton as Martin Charteris Will Keen as Michael Adeane Pip Torrens as Tommy Lascelles Chris Gordon as Duke of Edinburgh's Valet Daniel Ings as Mike Parker Jonathan Newth as Page (Buckingham Palace) Sophie Stone as Princess Alice Chloe Pirrie as Eileen Parker Finn Elliot as Young Prince Philip Lucy Russell as Lady Mountbatten Leonie Benesch as Princess Cecille Adrian Lukis as Vice-Admiral Conolly Abel Smith Guy Williams as Prince Andrea Simon Paisley Day as Meryn Lewis Julius D'Silva as Baron Nahum Mirrah Foulkes as Helen King Terrence Hardiman as Doctor Evans Sam Wilkinson as Royal Australian Navy Officer Attila Bardóczy as French Orderly Ty Hurley as Protester Martin Chamberlain as Aneurin Bevan Ivanhoe Norona as Polynesian Islander Hanako Footman as Lily
