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Dennis O'Keefe as Paul Mitchell |
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Coleen Gray as Mary Mason |
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Hugh Williams as Sir Richard Aldingham |
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Guy Middleton as Smith |
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John Laurie as Henry Mason |
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Gerald Case as Randall |
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Seymour Green as Weston |
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Eliot Makeham as George |
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Stanley Van Beers as Cartwright |
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Ellen Pollock as Miss Fossett |
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Morris Sweden as Pettigrew |
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Dora Bryan as Barmaid |
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Arnold Bell as Police Inspector |
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Michael Ward as Art Salesman |
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Clifford Buckton as Lodging House Keeper |
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Leslie Phillips as Boy Student |
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Marianne Noelle as Girl Student |
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Billie Whitelaw as Waitress |
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John Wadham as Thug |
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Beatrice Kane as |
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Frank Atkinson as uncredited |
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Tom Clegg as uncredited |
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Guy Deghy as uncredited |
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Harold Sanderson as uncredited |
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Johnnie Schofield as uncredited |
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Leonard Sharp as uncredited |
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Philip Ray as Bearded Tramp |
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Hyma Beckley as Art Gallery Visitor (uncredited) |
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Jimmy Cains as Howard - Tate Gallery Attendant (uncredited) |
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Dan Darnelli as Pub Customer (uncredited) |
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Norman Fisher as Museum Visitor (uncredited) |
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Robert Gregory as Art Gallery Visitor (uncredited) |
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Charles Hammond as Pub Customer (uncredited) |
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Dido Plumb as Museum Visitor (uncredited) |
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Jim Tyson as Stevedore (uncredited) |
| Directing | Godfrey Grayson | Director |
| Writing | James Daplyn | Story |
| Writing | Patrick Kirwan | Screenplay |
| Sound | Ilona Kabos | Original Music Composer |
| Sound | Leo Wilkins | Sound |
| Camera | Cedric Williams | Director of Photography |
| Editing | Charles Hasse | Editor |
| Production | Theo Lageard | Production Manager |
| Directing | Leon Bijou | Assistant Director |
| Directing | Angela Allen | Continuity |
| Camera | Harold Hayson | Camera Operator |
| Editing | Jim Connock | Editor |
| Art | Denis Wreford | Art Direction |
| Costume & Make-Up | U. P. Hutchinson | Makeup Artist |
| Production | Robert Faloon | Production Accountant |
| Production | Ambrose Grayson | Associate Producer |
| Production | Steven Pallos | Producer |
| Production | John Jones | Casting |
