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Glynis Johns as Caroline Trewella / Miranda Trewella |
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Donald Sinden as Jeff Saunders |
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Anne Crawford as Barbara Davenport |
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Margaret Rutherford as Nurse Carey |
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Dora Bryan as Berengaria |
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Nicholas Phipps as Col. Barclay Sutton |
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Peter Martyn as Ronald Baker |
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Noel Purcell as Percy |
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Joan Hickson as Mrs. Forster |
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Judith Furse as Viola |
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Irene Handl as Mme. Blanche |
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David Hurst as Signor Mantalini |
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Martin Miller as Dr. Fergus |
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Deryck Guyler as Editor |
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Anthony Oliver as Pawnbroker |
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Lawrence Ward as Alphonse |
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Martin Boddey as Marco (uncredited) |
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Stringer Davis as The Vicar (uncredited) |
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Meredith Edwards as Police Constable (uncredited) |
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Lucy Griffiths as Dr. Fergus' Secretary (uncredited) |
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John Horsley as Sports Organiser (uncredited) |
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Dandy Nichols as Nurse Carey's Landlady (uncredited) |
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George Woodbridge as Fisherman Outside Pub (uncredited) |
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Meredith Edwards as Police Constable |
| Directing | Ralph Thomas | Director |
| Writing | Peter Blackmore | Screenplay |
| Camera | Ernest Steward | Director of Photography |
| Production | Betty E. Box | Producer |
| Sound | Benjamin Frankel | Original Music Composer |
| Writing | Peter Blackmore | Story |
| Sound | Gordon K. McCallum | Sound Recordist |
| Directing | James H. Ware | Assistant Director |
| Sound | John Dennis | Sound Recordist |
| Art | George Provis | Art Direction |
| Sound | Peter Boita | Sound Editor |
| Costume & Make-Up | W.T. Partleton | Makeup Artist |
| Production | Denis Holt | Production Manager |
| Production | Earl St. John | Executive Producer |
| Editing | Gerald Thomas | Editor |
| Costume & Make-Up | Joan Ellacott | Costume Design |
| Costume & Make-Up | Biddy Chrystal | Hairstylist |
| Camera | H. A. R. Thomson | Camera Operator |