| Person | Type | Job | Role(s) |
|---|---|---|---|
 H.L. Bird | Crew | Sound | Sound Recordist |
Ivan King | Crew | Art | Art Direction |
Jack Davies | Crew | Writing | Writer |
 Mario Zampi | Crew | Directing | Director, Producer |
Michael Pertwee | Crew | Writing | Writer |
 Stanley Black | Crew | Sound | Original Music Composer |
William McLeod | Crew | Camera | Director of Photography |
Polly Young | Crew | Costume & Make-Up | Hairstylist |
Giulio Zampi | Crew | Editing | Editor |
Kenneth McKay | Crew | Costume & Make-Up | Makeup Artist |
 A.E. Matthews | Cast | Actor | Justice Sir Charles Robson |
 Alastair Sim | Cast | Actor | Capt. Denison Russell |
 Anthony Steel | Cast | Actor | Roger Godfrey |
 Audrey Hepburn | Cast | Actress | Cigarette Girl |
 Beatrice Campbell | Cast | Actress | Lucille Grayson |
 Charlotte Mitchell | Cast | Actress | Ethel, the maid |
 Colin Gordon | Cast | Actor | Harry - Station Constable |
 Eleanor Summerfield | Cast | Actress | Sheila Wilcott |
 Ernest Thesiger | Cast | Actor | Executor Endicott |
 Fay Compton | Cast | Actress | Agnes Russell |
Frank Hawkins | Cast | Actor | Store Detective |
 George Cole | Cast | Actor | Herbert Russell |
 Hugh Griffith | Cast | Actor | Henry Augustus Russell |
John Boxer | Cast | Actor | Constable Charles Baker, outside jewellry shop |
 John Laurie | Cast | Actor | Gordon Webb |
 John Sharp | Cast | Actor | Constable Cafferty, in alley |
 Joyce Grenfell | Cast | Actress | Elizabeth Robson |
 Leslie Dwyer | Cast | Actor | Police Sergeant |
Lyn Evans | Cast | Actor | Jailer |
 Mackenzie Ward | Cast | Arthur Benson, butler | |
 Martin Boddey | Cast | Actor | Store Shopwalker |
 Mary Germaine | Cast | Actress | Susan Heath |
Michael Pertwee | Cast | Actor | Mr. Stewart |
 Noel Howlett | Cast | Actor | Clerk of the Court |
 Ronald Adam | Cast | Actor | Mr. Wagstaffe - Bank Manager (as Ronald Adams) |
 Sebastian Cabot | Cast | Actor | Card Player Smoking Cigar |
 Veronica Hurst | Cast | Actress | Joan Webb |
 Guy Middleton | Cast | Actor | Simon Russell |
 Ian Fleming | Cast | Actor | Doctor |
| Person | Type | Job | Role(s) |
