| Person | Type | Job | Role(s) |
|---|---|---|---|
 Arthur Graham | Crew | Camera | Camera Operator |
Bill Beavis | Crew | Crew | Scenic Artist |
Clifford Boote | Crew | Editing | Editor |
F. McNally | Crew | Sound | Sound Recordist |
Gordon Scott | Crew | Directing | Assistant Director |
Günther Krampf | Crew | Camera | Director of Photography |
Harold V. King | Crew | Sound | Recording Supervision |
John O'Gorman | Crew | Costume & Make-Up | Makeup Artist |
Josephine Tey | Crew | Writing | Novel |
Lawrence Huntington | Crew | Directing | Director, Writer |
Louis Levy | Crew | Sound | Music Director |
Philip Green | Crew | Sound | Original Music Composer |
Robert Hall | Crew | Production | Producer, Writer |
Terence Verity | Crew | Art | Art Direction |
Wilfred Eades | Crew | Art | Production Design |
Polly Richards | Crew | Costume & Make-Up | Hairstylist |
June Faithfull | Crew | Directing | Continuity |
 Ambrosine Phillpotts | Cast | Actress | Miss Spence |
 Anthony Nicholls | Cast | Actor | Kevin McDermott |
 Athene Seyler | Cast | Actress | Aunt Lin |
 Avice Landone | Cast | Actress | Mrs. Wynn |
Charles Saynor | Cast | Police Officer in Courtroom (Uncredited) | |
Doris Yorke | Cast | Christina | |
 Dulcie Gray | Cast | Actress | Marion Sharpe |
Ernest Jay | Cast | Actor | Ramsden |
 Everley Gregg | Cast | Actress | Mrs. Jarrett |
 Harold Lang | Cast | Actor | Bus Inspector |
Hugh Moxey | Cast | Actor | Counsel for Prosecution |
 Hy Hazell | Cast | Actress | Mrs. Chadwick |
 Jack McNaughton | Cast | Actor | Jury Foreman (Uncredited) |
 Jean Anderson | Cast | Actress | Miss Tuff |
 John Bailey | Cast | Actor | Detective Inspector Grant |
 John Forrest | Cast | Actor | Leslie Wynn |
 John Warwick | Cast | Actor | Carley |
 Kenneth More | Cast | Actor | Stanley Peters |
 Marjorie Fielding | Cast | Actress | Mrs. Sharpe |
 Martin Boddey | Cast | Actor | Inspector Hallam |
Maureen Glynne | Cast | Rose Glynn | |
 Michael Denison | Cast | Actor | Robert Blair |
 Moultrie Kelsall | Cast | Actor | Judge |
 Patrick Troughton | Cast | Actor | Bill Brough |
 Peter Jones | Cast | Actor | Bernard Chadwick |
 Victor Maddern | Cast | Actor | Mechanic |
John Warren | Cast | Actor | Charlie (Uncredited) |
John Wilder | Cast | Actor | Police Officer in Courtroom (Uncredited) |
 Ann Stephens | Cast | Actress | Betty Kane |
Will Ambro | Cast | Heseltine | |
Lawrence Ray | Cast | Waiter | |
Richard Neller | Cast | Police Sergeant (Uncredited) | |
| Person | Type | Job | Role(s) |
