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Peter Cushing as Smith |
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Patrick Magee as Dr. Lionel Rutherford |
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Herbert Lom as Byron |
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Britt Ekland as Lucy |
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Barry Morse as Bruno |
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შარლოტა რემპლინგი as Barbara |
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Barbara Parkins as Bonnie |
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Robert Powell as Dr. Martin |
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Sylvia Syms as Ruth |
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Richard Todd as Walter |
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James Villiers as George |
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Geoffrey Bayldon as Max Reynolds |
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Ann Firbank as Anna |
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Megs Jenkins as Nurse Higgins |
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John Franklyn-Robbins as Mr. Stebbins |
| Directing | Roy Ward Baker | Director |
| Writing | Robert Bloch | Story |
| Writing | Robert Bloch | Writer |
| Camera | Denys N. Coop | Director of Photography |
| Sound | Douglas Gamley | Original Music Composer |
| Art | Tony Curtis | Art Direction |
| Costume & Make-Up | Roy Ashton | Makeup Artist |
| Costume & Make-Up | Joan Carpenter | Hairdresser |
| Production | Ronnie Curtis | Casting |
| Sound | Norman Bolland | Sound Mixer |
| Sound | Clive Smith | Sound Editor |
| Production | Gustave M. Berne | Executive Producer |
| Editing | Peter Tanner | Editor |
| Production | Milton Subotsky | Producer |
| Production | Max Rosenberg | Producer |
