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Barbara Shelley as Leonora Johnson / Leonora Brandt |
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Robert Ayres as Dr. Brian Marlowe |
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Kay Callard as Dorothy Marlowe |
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Ernest Milton as Edmund Brandt |
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Lily Kann as Anna |
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Jack May as Richard Johnson |
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Paddy Webster as Cathy |
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John Lee as Allan |
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Edward Harvey as Doorman |
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Martin Boddey as Cafferty |
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Selma Vaz Dias as Nurse |
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John H. Watson as Roberts |
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John Baker as Male Nurse (uncredited) |
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Selma Vaz Dias as Nurse (uncredited) |
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Jim Tyson as Barman (uncredited) |
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Frank Atkinson as Guard (uncredited) |
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Geoffrey Tyrrell as Caretaker (uncredited) |
| Directing | Alfred Shaughnessy | Director |
| Production | Herbert Smith | Producer |
| Production | Lou Rusoff | Producer |
| Writing | Lou Rusoff | Writer |
| Art | Jack Stevens | Production Design |
| Editing | Jocelyn Jackson | Editor |
| Production | John 'Pinky' Green | Production Manager |
| Camera | Paddy Aherne | Camera Operator |
| Directing | William Hill | Assistant Director |
| Sound | Len Page | Sound Recordist |
| Costume & Make-Up | Philip Leakey | Makeup Artist |
| Costume & Make-Up | Nina Broe | Hairdresser |
| Costume & Make-Up | Vi Murray | Wardrobe Master |
| Sound | John Addison | Music |
| Sound | Kenneth Essex | Music |
| Sound | Robert Gill | Music |
| Sound | Frank Spencer | Music |
| Art | Eric Saw | Art Direction |
| Camera | Mike Rutter | Clapper Loader |
| Production | Peter Rogers | Executive Producer |
| Camera | Peter Hennessy | Director of Photography |
| Directing | Olga Brook | Continuity |
