| Person | Type | Job | Role(s) |
|---|---|---|---|
 Doris DeHerdt | Crew | Directing | Script Supervisor |
 Enzo Barboni | Crew | Camera | Director of Photography |
Fred Carson | Crew | Crew | Stunts |
George James Hopkins | Crew | Art | Set Decoration |
George R. Rohrs | Crew | Editing | Editor |
Gordon Bau | Crew | Costume & Make-Up | Makeup Supervisor |
Harold Lipstein | Crew | Crew | Cinematography |
Jean Burt Reilly | Crew | Costume & Make-Up | Hair Supervisor |
 Jimmy Lydon | Crew | Production | Producer |
John Beckman | Crew | Art | Art Direction |
 Richard Farnsworth | Crew | Crew | Stunts |
Stanley Jones | Crew | Sound | Sound |
 William Conrad | Crew | Production | Executive Producer |
Sheldon Reynolds | Crew | Directing | Director, Writer |
Charles Bonniwell | Crew | Production | Unit Manager |
Albert D'Arno | Cast | Waiter (uncredited) | |
 Ann Prentiss | Cast | Actress | Hotel Party Girl in Red Dress (uncredited) |
Cynthia O'Neal | Cast | Felice Valayan (as Cynthia Baxter) | |
 Eric Portman | Cast | Actor | Notary |
 Fifi D'Orsay | Cast | Actress | Mrs. Hennie |
 Herbert Lom | Cast | Actor | Matt Wilson |
 Joan Hackett | Cast | Actress | Dominique Laurant |
 John Gielgud | Cast | Actor | Curt Valayan |
 Kent Smith | Cast | Actor | Mr. Eversley |
 Leon Greene | Cast | Actor | The Big Man |
 Martin Miller | Cast | Actor | Police Chief (uncredited) |
 Oskar Homolka | Cast | Actor | Inspector Ruff |
 Patrick O'Neal | Cast | Actor | Richard Cutting |
 Peter van Eyck | Cast | Actor | Walter Green |
 Philip Ober | Cast | Actor | Bohlen |
Walter Friedel | Cast | Actor | Secretary (uncredited) |
 Éva Szörényi | Cast | Actress | Landlady (as Eva Soreny) |
 Walter Janovitz | Cast | Actor | Waiter (uncredited) |
Karl Bruck | Cast | Waiter (uncredited) | |
Charles H. Radilak | Cast | Actor | Manager (uncredited) |
Betty Bresler | Cast | Secretary (uncredited) | |
Joanne Ludden | Cast | Receptionist (uncredited) | |
Erik Sorenson | Cast | Bellboy (uncredited) | |
| Person | Type | Job | Role(s) |
