Guest Stars Charles Edwards as Martin Charteris David Rintoul as Michael Adeane Penny Downie as Duchess of Glouchester Lorraine Ashbourne as Barbara Castle Mark Dexter as Tony Benn Michael Thomas as Duke of Gloucester Leonie Benesch as Princess Cecille Finn Elliot as Young Prince Philip Aden Gillett as Richard Crossman Colin Morgan as John Armstrong Robert Wilfort as Documentary Director Miltos Yerolemou as Chronos Nigel Whitmey as Marquis Childs Chris Kyriacou as Police Chief Tony Bell as Guardian Editor Jacob Shephard as Page Georgina Strawson as Buckingham Palace Maid Colin Stinton as Lawrence E. Spivak Ben Stylianou as Pawnbroker Michael Parker as Documentary Narrator