| Person | Type | Job | Role(s) |
|---|---|---|---|
 Connie Willis | Crew | Directing | Continuity |
Dennis C. Lewiston | Crew | Camera | Clapper Loader |
 Desmond Davis | Crew | Camera | Additional Camera, Camera Operator |
 Eric Ambler | Crew | Writing | Screenplay |
Ernest Holding | Crew | Production | Production Manager |
Geoffrey Household | Crew | Writing | Novel |
George Burgess | Crew | Sound | Sound |
Gerry Turpin | Crew | Camera | Camera Operator |
Godfrey A. Godar | Crew | Camera | Focus Puller |
Hans May | Crew | Sound | Original Music Composer |
Ivan King | Crew | Art | Art Direction |
Neville Smallwood | Crew | Costume & Make-Up | Makeup Artist |
Raymond Stross | Crew | Production | Producer |
 Robert Parrish | Crew | Directing | Director |
Russell Lloyd | Crew | Editing | Editor |
Stanley Pavey | Crew | Camera | Director of Photography |
Tom Simpson | Crew | Editing | Associate Editor |
Max Varnel | Crew | Directing | Assistant Director |
Jean Bear | Crew | Costume & Make-Up | Hairdresser |
Leonard Bulkley | Crew | Sound | Sound Mixer |
Ron Benton | Crew | Art | Assistant Art Director |
Ted Cotton | Crew | Production | Location Manager |
Arnold Bell | Cast | Actor | Sgt. Baines |
Clement McCallin | Cast | Inspector Sullivan | |
 Cyril Raymond | Cast | Actor | Cartwright |
 David Hurst | Cast | Actor | Lex |
Denis Lehrer | Cast | Reimann | |
Ellis Irving | Cast | Actor | Wharton |
 Evelyn Keyes | Cast | Actress | Cecily |
 Frank Lawton | Cast | Actor | Hassingham |
 Herbert Lom | Cast | Actor | Sandorski |
 Jack McNaughton | Cast | Actor | Inspector Matthews |
 Joan Hickson | Cast | Actress | Station Announcer |
 Joel McCrea | Cast | Actor | Lt. Col. Robert Taine |
 Karl Stepanek | Cast | Actor | Diss |
 Laurence Naismith | Cast | Actor | Blossom |
 Marius Goring | Cast | Actor | Hiart |
 Megs Jenkins | Cast | Actress | Mrs. Powell |
 Patricia Laffan | Cast | Actress | Magda |
Powys Thomas | Cast | Actor | Ambulance Driver |
 Roland Culver | Cast | Actor | Randall |
Robert Dickens | Cast | Tommy | |
George Hilsdon | Cast | Actor | Police Constable (uncredited) |
Ian Selby | Cast | Actor | Lex's Contact (uncredited) |
| Person | Type | Job | Role(s) |
