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Anne Heywood as Tracey Lawrence |
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Richard Todd as Geoffrey Lawrence |
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Nicole Maurey as Helen |
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Jack Hedley as Inspector McInnes |
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Jeremy Brett as Mullen (The Intruder) |
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Maurice Denham as Crawford |
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Patrick Magee as Simmonds |
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Gwen Watford as Sister Holden |
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Verina Greenlaw as Selina |
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Pauline Delaney as Agnes, Selina's Mother |
| Writing | Leslie Bricusse | Story |
| Writing | Vivian Cox | Story |
| Writing | Elizabeth Jane Howard | Screenplay |
| Writing | Raymond Stross | Story |
| Directing | Cyril Frankel | Director |
