Guest Stars Harry Hadden-Paton as Martin Charteris Will Keen as Michael Adeane Lizzy McInnerny as Bobo Macdonald Chris Gordon as Duke of Edinburgh's Valet James Hillier as Equerry (Buckingham Palace) Joseph Kloska as Porchey Sylvestra Le Touzel as Dorothy MacMillan John Sackville as S.I.S. Controller Peter Ellis as Sandringham Gamekeeper / Land Agent Michael Bertenshaw as Master of the Household Richard Clifford as Norman Hartnell Robert Irons as Freddie Bishop David Annen as Alec Douglas-Home Julian Ovenden as Bobby Kennedy Danny Sapani as President Nkrumah Alec Nicholls as Downing Street Aide Sam Crane as Patrick Plunket Jacques Boudet as President de Gaulle Linda Small as Elderly Ghanaian Servant James Garnon as Stanisław Radziwill Skye Hallam as Lee Radziwill James Borthwick as Leonid Brezhnev Sidwell Ralitsoele as Nkrumah's Aide Barnabas Toth as French Diplomat Jeremy Wheeler as Doctor Jacobson