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Margaret Rutherford as Heather Honey |
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Richard Hearne as Henry Wrigley |
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Edward Lexy as DI Wilson |
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Fanny Rowe as Marion Wrigley |
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Michael Medwin as Ernest |
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Eunice Gayson as Pam Wrigley |
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Sidney James as Sidney (as Sidney James) |
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Dora Bryan as Pearl |
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Eric Berry as Lord Otterbourne aka The Otter |
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Russell Waters as Bunyan |
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Peter Jones as Cyril Lidstone |
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Reg Varney as Dennis |
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Susanne Gibbs as Susan "Sue" Wrigley |
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Francis de Wolff as PC Andrews |
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James Robertson Justice as The MacAlister |
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Ian Carmichael as Office Junior |
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Kenneth Connor as Board Member |
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Lesley Dudley as Small Girl Who Sets Fire to Comic |
| Writing | Val Valentine | Screenplay |
| Crew | Geoffrey Orme | treatment |
| Writing | Reed De Rouen | Story |
| Writing | Patrick Campbell | Dialogue |
| Directing | John Guillermin | Director |
| Directing | Denis Johnson | Assistant Director |
| Production | John Grierson | Executive Producer |
| Crew | John Baxter | Production Controller |
| Sound | John Hollingsworth | Music Director |
| Sound | Temple Abady | Music |
| Camera | Arthur Grant | Director of Photography |
| Art | Ray Simm | Art Direction |
| Editing | Manuel del Campo | Editor |
| Sound | Len Page | Sound Recordist |
| Production | F. Sherwin Green | Production Manager |
| Camera | Ken Hodges | Camera Operator |
| Sound | Connie Mason | ADR Editor |
| Directing | Shirley Barnes | Continuity |
| Costume & Make-Up | Bob Lawrance | Makeup Artist |
| Costume & Make-Up | June Robinson | Hairdresser |
| Costume & Make-Up | Amy Binney | Wardrobe Master |
| Production | Donald B. Wilson | Producer |
