- Dainton Anderson - Young Matthew Stonehouse
- Brian Caspe - Czech Government Official
- Ieva Andrejevaitė - Irena Bala
- Igor Grabuzov - Alexander Marek
- Robin Laing - Bank Manager
- Jonathan Rhodes - BAC Spokesperson
- Will Adamsdale - Harry Evans
- Devon Black - Margaret Thatcher
- Albert Welling - Cliff Michelmore
- Joshua Diffley - BBC Studio Manager
- Bryan Lawrence - Chief Whip - Bob Mellish
- Richard Rycroft - Patient
- Linda Armstrong - Mourner
- Tracey Vanessa Brown - Airline Official
- Jeremy Secomb - Rod Murray
- Richard Dillane - Mackenzie
- Paul Westwood - Miami Reporter
- Alex Caan - Interviewer
- Sam Lockwood - Desk Clerk
- Sam Lockwood - TV Interviewer
- Crispin Letts - Financial Advisor
- Celeste Wong - Psychologist
- Rich Keeble - Producer
- Jamila Wingett - Brixton Journalist
- Sanjeev Kohli - Prosecuting Counsel
- Jemma Churchill - London Magistrate
- Paul Kemp - Frank Hansford-Miller
- Roger Ringrose - The Old Bailey Judge
- Shem Hamilton - Inmate
- Rose Robinson - Magazine Journalist
- David Nellist - Dave
- John Preston
- Diederick Santer
- Ruth Kenley-Letts
- Polly Hill
- Neil Blair
- Joseph Sharpe
- Jon S. Baird
- Grant Bridgeman
- Tristan Rose
- Emma Butt
- Foley Farmers
- John Cobban
- Maxwell MacRae
Keeley Hawes hace el papel de Barbara Stonehouse.
Kevin McNally interpreta a Harold Wilson en la serie.
Dorothy Atkinson interpreta a Betty Boothroyd en la serie.
Archie Barnes hace el papel de Matthew Stonehouse.
Simon Greenall interpreta a Speaker at The House of Commons en la serie.
Orla Hill hace el papel de Jane Stonehouse.
Aoife Checkland interpreta a Julia Stonehouse en la serie.
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