Matthew Macfadyen John Stonehouse Actor, Executive Producer Emer Heatley Sheila Buckley Actor Dorothy Atkinson Betty Boothroyd Actor Kevin R. McNally Harold Wilson Actor Keeley Hawes Barbara Stonehouse Actor Rich Keeble Producer Actor, Producer Orla Hill Jane Stonehouse Actor Archie Barnes Matthew Stonehouse Actor Aoife Checkland Julia Stonehouse Actor Adrian Metcalfe Teller Actor Simon Greenall Speaker at The House of Commons Actor Sanjeev Kohli Prosecuting Council Actor Jemma Churchill London Magistrate Actor Igor Grabuzov Alexander Marek Actor Sam Lockwood TV Interviewer Actor Roger Ringrose The Old Bailey Judge Actor Rose Robinson Magazine Journalist Actor David Nellist Dave Actor Tianna Arnold Make Up Artist Actor Jamila Wingett Brixton Journalist Actor Shem Hamilton Inmate Actor Artie Wilkinson-Hunt James Stonehouse Actor Amy Dunn Floor Manager 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