| Person | Type | Job | Role(s) |
|---|---|---|---|
 Graham Greene | Crew | Writing | Novel |
 Hope Bryce | Crew | Costume & Make-Up | Costume Design |
Jan Dorman | Crew | Costume & Make-Up | Hairstylist |
John Jay | Crew | Camera | Still Photographer |
Kenneth Ryan | Crew | Art | Art Direction |
Mike Molloy | Crew | Camera | Director of Photography |
 Otto Preminger | Crew | Directing | Director, Producer |
Richard Trevor | Crew | Editing | Editor |
Rose Tobias Shaw | Crew | Production | Casting |
Roy Rodhouse | Crew | Lighting | Electrician |
 Saul Bass | Crew | Art | Title Designer |
 Tom Stoppard | Crew | Writing | Screenplay |
Kip Gowans | Crew | Directing | Assistant Director |
Rick Anderson | Crew | Production | Location Manager |
Michael Morris | Crew | Costume & Make-Up | Makeup Artist |
Gary Logan | Crew | Sound | Original Music Composer |
Richard Logan | Crew | Sound | Original Music Composer |
Val Robins | Crew | Production | Production Supervisor |
Tony Teiger | Crew | Art | Property Master |
Hazel Harste | Crew | Editing | Assistant Editor |
Valerie Lesser | Crew | Sound | Music Editor |
 Adrienne Corri | Cast | Actress | Sylvia |
 Angela Thorne | Cast | Actress | Lady Mary Hargreaves |
 Ann Todd | Cast | Actress | Castle's Mother |
Anthony Woodruff | Cast | Actor | Dr Barker |
 Clifford Earl | Cast | Actor | Ferguson |
 Cyd Hayman | Cast | Actress | Cynthia |
 Denys Hawthorne | Cast | Actor | Insp. Butler |
 Derek Jacobi | Cast | Actor | Arthur Davis |
 Fiona Fullerton | Cast | Actress | Elizabeth |
 Frank Williams | Cast | Actor | Bellamy |
 Gary Forbes | Cast | Actor | Sam |
Giles Watling | Cast | Actor | Colin |
 Glenna Forster-Jones | Cast | Actress | Black Prostitute |
 Iman | Cast | Actress | Sarah |
 John Gielgud | Cast | Actor | Brigadier Tomlinson |
 Joop Doderer | Cast | Actor | Cornelius Muller |
 Keith Marsh | Cast | Actor | Porter |
 Ken Jones | Cast | Actor | Messenger |
 Leon Greene | Cast | Actor | Tall Man |
 Marianne Stone | Cast | Actress | Matron |
 Martin Benson | Cast | Actor | Boris |
 Morris Perry | Cast | Actor | Scientist |
 Nicol Williamson | Cast | Actor | Maurice Castle |
 Patrick O'Connell | Cast | Actor | Reader |
Paul Seed | Cast | Actor | Shop Assistant |
 Richard Attenborough | Cast | Actor | Colonel John Daintry |
 Richard Vernon | Cast | Actor | Sir John Hargreaves |
 Robert Dorning | Cast | Actor | Jameson |
 Robert Morley | Cast | Actor | Doctor Percival |
 Sean Caffrey | Cast | Actor | Policeman |
Sylvia Coleridge | Cast | Actress | Mrs Halliday |
Tom Chatto | Cast | Actor | Gen. Phillips |
 Tony Haygarth | Cast | Actor | Buffy |
 Tony Vogel | Cast | Actor | Matthew Connolly |
 Edward Dentith | Cast | Actor | Edward |
Raewyn Blade | Cast | Secretary | |
Norbert Okare | Cast | Questioner | |
Walter Hinds | Cast | Van Donck | |
Philip Chege | Cast | Black Man | |
Vicky Udall | Cast | Castle's Secretary | |
Brian Epson | Cast | Judge | |
 Boris Isarov | Cast | Actor | Agent |
 Jill Goldston | Cast | Actress | NATO Lab Worker (uncredited) |
Paul Curran | Cast | Actor | Halliday |
Chantal Gray | Cast | Actress | Stripper |
| Person | Type | Job | Role(s) |
