Matthew Macfadyen John Stonehouse Actor, Executive Producer Emer Heatley Sheila Buckley Actor Kevin R. McNally Harold Wilson Actor Keeley Hawes Barbara Stonehouse Actor Simon Greenall Speaker at The House of Commons Actor Dorothy Atkinson Betty Boothroyd Actor Celia Robertson Civil Servant Actor Dainton Anderson Young Matthew Stonehouse Actor Orla Hill Jane Stonehouse Actor Aoife Checkland Julia Stonehouse Actor Brian Caspe Czech Government Official Actor Ieva Andrejevaite Irena Bala Actor Igor Grabuzov Alexander Marek Actor Robin Laing Bank Manager Actor Jonathan Rhodes BAC Spokesman Actor Timothy Walker Charles Elwel Actor Will Adamsdale Harry Evans Actor Devon Black Margaret Thatcher Actor Albert Welling Cliff Michelmore Actor Bryan Lawrence Chief Whip Actor Richard Rycroft Patient Actor Catherine Skinner Mrs Carey Actor Linda Armstrong Mourner Actor Archie Barnes Matthew Stonehouse Actor Joshua Diffley BBC Studio Manager Actor Tommy Letts Assistant Bank Manager Actor Sam Yetunde Nurse Actor Sam Lockwood Desk Clerk Actor Tracey Vanessa Brown Airline Official Actor Ruth Kenley-Letts Producer, Executive Producer Ellie Wood Producer, Executive Producer John Preston Writer, Executive Producer Rolfe Kent Original Music Jon S. Baird Executive Producer, Director Neil Blair Executive Producer Polly Hill Executive Producer Diederick Santer Executive Producer