Directed by
| William Castle | ||
Writing Credits
| Robert Dillon | ... | (screenplay) |
| J.B. Priestley | ... | (based on "The Old Dark House" by) |
Cast (in credits order) complete, awaiting verification
| Tom Poston | ... | Tom Penderel | |
| Robert Morley | ... | Roderick Femm | |
| Janette Scott | ... | Cecily Femm | |
| Joyce Grenfell | ... | Agatha Femm | |
| Mervyn Johns | ... | Potiphar Femm | |
| Fenella Fielding | ... | Morgana Femm | |
| Peter Bull | ... | Caspar & Jasper Femm | |
| Danny Green | ... | Morgan Femm | |
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John Harvey | ... | Club Receptionist |
| Rest of cast listed alphabetically: | |||
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John Adams | ... | Casino Patron (uncredited) |
| Charles Addams | ... | Hand in Title Sequence (uncredited) | |
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Jack Arrow | ... | Casino Employee (uncredited) |
| Jim Brady | ... | Casino Patron (uncredited) | |
| Amy Dalby | ... | Gambler (uncredited) | |
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Joyce Everson | ... | Casino Patron (uncredited) |
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Angela Kay | ... | Casino Patron (uncredited) |
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Aileen Lewis | ... | Casino Patron (uncredited) |
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John Lynn | ... | Croupier (uncredited) |
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Harry Phipps | ... | Casino Patron (uncredited) |
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Miles Silverton | ... | Casino Patron (uncredited) |
Produced by
| William Castle | ... | producer |
| Anthony Hinds | ... | producer (uncredited) |
| Dona Holloway | ... | associate producer (as Donna Holloway) |
| Basil Keys | ... | associate producer (uncredited) |
Music by
| Benjamin Frankel | ||
Cinematography by
| Arthur Grant | ... | director of photography |
Production Design by
| Bernard Robinson | ||
Makeup Department
| Roy Ashton | ... | make-up artist |
| Frieda Steiger | ... | hair stylist |
| Jimmy Evans | ... | assistant make-up (uncredited) |
Production Management
| John Draper | ... | production manager |
Second Unit Director or Assistant Director
| Douglas Hermes | ... | assistant director |
| Dominic Fulford | ... | second assistant director (uncredited) |
| Hugh Harlow | ... | third assistant director (uncredited) |
Art Department
| Charles Addams | ... | drawn by: title backgrounds (as Chas Addams) |
| Arthur Banks | ... | construction manager (uncredited) |
| Stan Banks | ... | master plasterer (uncredited) |
| Burt Evans | ... | assistant art director (uncredited) |
| Eric Hillier | ... | prop buyer (uncredited) |
| Tom Money | ... | property master (uncredited) |
| Kenneth Ryan | ... | assistant art director (uncredited) |
Sound Department
| Jim Groom | ... | sound editor (as James Groom) |
| Jock May | ... | sound recordist |
| H.C. Allan | ... | sound camera operator (uncredited) |
| Charles Bouvet | ... | sound maintenance (uncredited) |
| Ken Nightingall | ... | assistant boom operator (uncredited) |
Special Effects by
| Les Bowie | ... | special effects |
| Kit West | ... | special effects (uncredited) |
Camera and Electrical Department
| Moray Grant | ... | camera operator |
| Wally Byatt | ... | focus puller (uncredited) |
| Albert Cowlard | ... | grip (uncredited) |
| Jack Curtis | ... | chief electrician (uncredited) |
| George Davies | ... | clapper loader (uncredited) |
| Tom Edwards | ... | still photographer (uncredited) |
| Vic Hemmings | ... | chargehand electrician (uncredited) |
| John Kerley | ... | camera maintenance (uncredited) |
Costume and Wardrobe Department
| Molly Arbuthnot | ... | wardrobe supervisor (as Molly Abbuthnot) |
| Rosemary Burrows | ... | wardrobe mistress |
Editorial Department
| James Needs | ... | supervising editor |
| Chris Barnes | ... | first assistant editor (uncredited) |
| Pat Foster | ... | second assistant editor (uncredited) |
Music Department
| Benjamin Frankel | ... | conductor |
Script and Continuity Department
| Pauline Harlow | ... | continuity (as Pauline Wise) |
Additional Crew
| Ken Gordon | ... | production accountant (uncredited) |
| A.F. Kelly | ... | studio manager (uncredited) |
| Maureen White | ... | production secretary (uncredited) |
