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James Mason as Nicholas Cunningham |
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Ann Todd as Francesca Cunningham |
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Herbert Lom as Dr. Larsen |
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Hugh McDermott as Peter Gay |
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Albert Lieven as Maxwell Leyden |
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Yvonne Owen as Susan Brook |
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David Horne as Dr. Kendall |
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Manning Whiley as Dr. Irving |
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Grace Allardyce as Nurse |
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John Slater as James |
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Muir Mathieson as Conductor |
| Directing | Compton Bennett | Director |
| Writing | Muriel Box | Writer |
| Writing | Sydney Box | Writer |
| Sound | Benjamin Frankel | Original Music Composer |
| Sound | Muir Mathieson | Conductor |
| Camera | Reginald H. Wyer | Director of Photography |
| Camera | Bert Mason | Camera Operator |
| Editing | Gordon Hales | Editor |
| Production | Knox Laing | Production Manager |
| Art | James A. Carter | Art Direction |
| Sound | George Burgess | Sound |
| Sound | L. Clark | Sound Recordist |
| Costume & Make-Up | Nell Taylor | Makeup Artist |
| Costume & Make-Up | Frieda Steiger | Hairstylist |
| Costume & Make-Up | Dorothy Sinclair | Costume Design |
| Production | Sydney Box | Producer |
