| Person | Type | Job | Role(s) |
|---|---|---|---|
 A.W. Watkins | Crew | Sound | Recording Supervision |
 Agatha Christie | Crew | Writing | Novel |
Arthur Ibbetson | Crew | Camera | Director of Photography |
Basil Rayburn | Crew | Directing | Assistant Director |
Eddie Knight | Crew | Costume & Make-Up | Makeup Artist |
Frank White | Crew | Art | Art Direction |
George H. Brown | Crew | Production | Producer |
 George Pollock | Crew | Directing | Director |
 Irene Howard | Crew | Production | Casting Director |
J.B. Smith | Crew | Sound | Sound Editor |
James P. Cavanagh | Crew | Writing | Screenplay |
John Barry | Crew | Art | Assistant Art Director |
Lawrence P. Bachmann | Crew | Production | Producer |
Maude Churchill | Crew | Costume & Make-Up | Wardrobe Master |
Paul Wilson | Crew | Camera | Camera Operator |
Ron Goodwin | Crew | Sound | Original Music Composer |
Sydney Streeter | Crew | Production | Production Manager |
Tom Howard | Crew | Crew | Special Effects |
Pearl Orton | Crew | Costume & Make-Up | Hairdresser |
Bert Rule | Crew | Editing | Editor |
Betty Harley | Crew | Directing | Continuity |
David Bowen | Crew | Sound | Sound Recordist |
Geoffrey Kidd | Crew | Sound | Boom Operator |
Denis Rogers | Crew | Sound | Sound Editor |
 Charles Tingwell | Cast | Actor | Inspector Craddock |
 Duncan Lamont | Cast | Actor | Hillman |
 Finlay Currie | Cast | Actor | Old Enderby |
 Flora Robson | Cast | Actress | Miss Milchrest |
Frank Atkinson | Cast | Actor | Hotel Night Porter (uncredited) |
Fred Griffiths | Cast | Actor | Landlord (uncredited) |
 Gordon Harris | Cast | Actor | Sergeant Bacon |
 James Villiers | Cast | Actor | Michael Shane |
 Katya Douglas | Cast | Actress | Rosamund Shane |
 Kevin Stoney | Cast | Actor | Dr. Markwell |
 Margaret Rutherford | Cast | Actress | Miss Jane Marple |
 Noel Howlett | Cast | Actor | Mr. Trundell |
 Robert Morley | Cast | Actor | Hector Enderby |
 Robert Urquhart | Cast | Actress | George Crossfield |
 Roger Avon | Cast | Actor | Police Photographer (uncredited) |
 Stringer Davis | Cast | Actor | Jim Stringer |
| Person | Type | Job | Role(s) |
