- Keith Marsh - Porter
- Gary Forbes - Sam
- Angela Thorne - Lady Mary Hargreaves
- Tony Haygarth - Buffy
- Cyd Hayman - Cynthia
- Paul Seed - Shop Assistant
- Ken Jones - Messenger
- Fiona Fullerton - Elizabeth
- Tony Vogel - Matthew Connolly
- Martin Benson - Boris
- Adrienne Corri - Sylvia
- Edward Dentith - Edward
- Marianne Stone - Matron
- Giles Watling - Colin
- Frank Williams - Bellamy
- Tom Chatto - Gen. Phillips
- Sean Caffrey - Policeman
- Clifford Earl - Ferguson
- Sylvia Coleridge - Mrs Halliday
- Denys Hawthorne - Insp. Butler
- Glenna Forster-Jones - Black Prostitute
- Morris Perry - Scientist
- Richard Vernon - Sir John Hargreaves
- Walter Hinds - Van Donck
- Philip Chege - Black Man
- Norbert Okare - Questioner
- Vicky Udall - Castle's Secretary
- Brian Epson - Judge
- Leon Greene - Tall Man
- Robert Dorning - Jameson
- Patrick O'Connell - Reader
- Raewyn Blade - Secretary
- Boris Isarov - Agent
- Paul Curran - Halliday
- Chantal Gray - Stripper
- Jill Goldston - NATO Lab Worker (uncredited)
- Otto Preminger
- Tom Stoppard
- Graham Greene
- Otto Preminger
- Rick Anderson
Capítulo disponible en las siguientes plataformas:
