Guest Stars Charles Edwards as Martin Charteris Tom Byrne as Prince Andrew Angus Imrie as Prince Edward Sam Phillips as Equerry Michael Buerk voices Newsreader John Humphrys voices Newsreader Penny Downie as Duchess of Glouchester Kevin McNally as Bernard Ingham Don Gallagher as Willie Whitelaw Paul Jesson as Sir Geoffrey Howe Richard Goulding as Edward Adeane Geoff Breton as Mark Phillips Paul Bigley as John Nott Evan Whitt as Nicholas Knatchbull Freddie Fox as Mark Thatcher Guy Siner as Francis Pym Letty Thomas as Virginia Pittman Richard Syms as Lord Hailsham Andrew Piper as Balmoral Master of the Household Allegra Marland as Carolyn Pride Patrick Toomey as Philip's Private Secretary Flora Higgins as Anne Bolton Laura Cairns as Balmoral Maid Rebecca Humphries as Carol Thatcher Peter Pacey as Lord Soames Nicholas Day as Jim Prior Brandon Whitt as Timothy Knatchbull Ronald Moger as Reporter Alex Harland as Newsreader Isobel Eadie as Sarah Spencer Harriet Benson as Patricia Knatchbull Gerard Ban Lavery as Fisherman Valerie Sarruf as Dowager Lady Brabourne Patrick McBrearty as Francis McGirl Callum Coates as Butler at Althorp Rob Curling as Showjumping Commentator Mark Brennan as Thomas McMahon Amy Searles as Kanga Richard Stirling as Showjumping Timekeeper David Kerr as Showjumping Judge Mark Carlisle as Lord Brabourne Michael Colgan as IRA Lieutenant Roy Sampson as Laurens van der Post