| Person | Type | Job | Role(s) |
|---|---|---|---|
 Alan Hume | Crew | Camera | Camera Operator |
Alessandro Cicognini | Crew | Sound | Original Music Composer |
Bridget Sellers | Crew | Costume & Make-Up | Costume Design |
 Georges Périnal | Crew | Camera | Director of Photography |
 Graham Greene | Crew | Production | Producer, Writer |
Jean Barker | Crew | Editing | Editor |
John Cox | Crew | Sound | Sound Supervisor |
John Howell | Crew | Art | Art Direction |
 Ken Annakin | Crew | Directing | Director |
Len Townsend | Crew | Art | Set Decoration |
Tony Sforzini | Crew | Costume & Make-Up | Makeup Artist |
Vernon Messenger | Crew | Sound | Sound Editor |
Yvonne Axeworthy | Crew | Directing | Continuity |
Joan White | Crew | Costume & Make-Up | Hairstylist |
Jack Martin | Crew | Production | Production Supervisor |
Ken Ritchie | Crew | Sound | Boom Operator |
Reg Bream | Crew | Art | Draughtsman |
John Shinerock | Crew | Camera | Clapper Loader |
Ray Hearne | Crew | Camera | Still Photographer |
Dennis Bertera | Crew | Directing | Assistant Director |
Louis H. Lavelly | Crew | Lighting | Gaffer |
 A.E. Matthews | Cast | Actor | Man |
 Albert Lieven | Cast | Actor | Hotel Manager |
 André Maranne | Cast | Actor | Bar Waiter (uncredited) |
Andre Mikhelson | Cast | Actor | Head Waiter (uncredited) |
Bryan Coleman | Cast | Actor | Elegant Man at Casino (uncredited) |
 Charles Lloyd Pack | Cast | Actor | Sir Walter Blixon (uncredited) |
 Felix Aylmer | Cast | Actor | The Other |
 Geoffrey Keen | Cast | Actor | Reception Clerk |
 Glynis Johns | Cast | Actress | Cary |
Guido Lorraine | Cast | Actor | Room Waiter (uncredited) |
 Hal Osmond | Cast | Actor | Liftman (uncredited) |
 Joan Benham | Cast | Actress | Miss Bullen (uncredited) |
 John Moffatt | Cast | Actor | Barman (uncredited) |
 Joyce Carey | Cast | Actress | Bird's Nest |
Marianne Deeming | Cast | Hotel Maid (uncredited) | |
 Mona Washbourne | Cast | Actress | Nurse (uncredited) |
Murray Kash | Cast | Proprietor of Taxi Bar (uncredited) | |
 Peter Illing | Cast | Actor | Stranger with "The System" |
 Robert Morley | Cast | Actor | Dreuther |
 Rossano Brazzi | Cast | Actor | Bertrand |
 Shirley Anne Field | Cast | Actress | Attractive Girl in Salle Rivée (uncredited) |
 Tony Britton | Cast | Actor | Philip |
 Walter Hudd | Cast | Actor | Arnold (uncredited) |
Paul Beradi | Cast | Actor | Casino Patron (uncredited) |
Carl Bernard | Cast | Actor | Steward (uncredited) |
Alex Gallier | Cast | Casino Attendant (uncredited) | |
Hyma Beckley | Cast | Casino Patron (uncredited) | |
Armand Guinle | Cast | Actor | Official at Mairir (uncredited) |
Philip Stewart | Cast | Man in Hotel (uncredited) | |
Bill Morgan | Cast | Croupier (uncredited) | |
Orest Orloff | Cast | Casino Barman (uncredited) | |
| Person | Type | Job | Role(s) |
