| Person | Type | Job | Role(s) |
|---|---|---|---|
 Alan Osbiston | Crew | Editing | Editor |
 André de Toth | Crew | Production | Executive Producer |
Bert Davey | Crew | Art | Production Design |
 Billy Williams | Crew | Camera | Director of Photography |
 Harry Saltzman | Crew | Production | Producer |
John Brady | Crew | Costume & Make-Up | Costume Design |
 John McGrath | Crew | Writing | Screenplay |
 Ken Russell | Crew | Directing | Director |
 Len Deighton | Crew | Writing | Novel |
Richard Rodney Bennett | Crew | Sound | Original Music Composer |
Shirley Russell | Crew | Costume & Make-Up | Costume Design |
Syd Cain | Crew | Art | Production Design |
Teddy Mason | Crew | Sound | Sound Director |
David Wynn-Jones | Crew | Camera | Assistant Camera |
Ariel Levy | Crew | Directing | Assistant Director |
 Alexei Jawdokimov | Cast | Actor | Latvian Gangster |
 Bill Mitchell | Cast | Actor | Guard at Midwinter's House |
Brandon Brady | Cast | Actor | Chief of Security |
 Donald Sutherland | Cast | Actor | Scientist at Computer |
 Ed Begley | Cast | Actor | General Midwinter |
 Françoise Dorléac | Cast | Actress | Anya |
Fred Griffiths | Cast | Actor | Taxi Driver |
Frederick Schrecker | Cast | Actor | Old Man on Train |
 George Roubicek | Cast | Actor | Edgar |
 Gertan Klauber | Cast | Actor | Dr. Kaarna (uncredited) |
 Guy Doleman | Cast | Actor | Colonel Ross |
Hans De Vries | Cast | Actor | 3rd Dutch Businessman |
 Harry Fielder | Cast | Actor | Cowboy at Barndance (uncredited) |
Izabella Telezynska | Cast | Actress | Latvian Gangster |
Jill Mai Meredith | Cast | Russian Girl on Train | |
 John Brandon | Cast | Actor | Jim |
 Karl Malden | Cast | Actor | Leo Newbigen |
 Mark Elwes | Cast | Actor | Birkenshaw |
 Michael Caine | Cast | Actor | Harry Palmer |
 Miki Iveria | Cast | Actress | Russian Woman on Train |
 Milo Sperber | Cast | Actor | Basil |
 Oskar Homolka | Cast | Actor | General Stok |
Paul Tamarin | Cast | Actor | Latvian Gangster |
Reed De Rouen | Cast | Actor | Observer |
Stanley Caine | Cast | Actor | GPO Special Delivery Boy |
 Steve Emerson | Cast | Actor | Russian Plainclothesman |
 Susan George | Cast | Actress | Russian Girl on Train |
 Vladek Sheybal | Cast | Actor | Dr. Eiwort |
John Herrington | Cast | Actor | 2nd Dutch Businessman |
Max Kirby | Cast | Shoe Shop Assistant | |
 Tony Harwood | Cast | Actor | Macey |
Janos Kurutz | Cast | Latvian Gangster | |
Michael Stayner | Cast | Scientist | |
Alex Marchevsky | Cast | Russian Radar Operator | |
Peter Forest | Cast | Actor | 2nd Russian Radar Operator |
Dolly Brennan | Cast | Old Woman in Gangster's Hut | |
Mark Moss | Cast | Russian Plainclothesman | |
Gregg Palmer | Cast | 1st Dutch Businessman | |
| Person | Type | Job | Role(s) |
