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Richard Johnson as Hugh Drummond |
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Daliah Lavi as Helga |
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Beba Lončar as Pandora |
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James Villiers as Carl Petersen |
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Vanessa Howard as Robot No. 7 |
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Maurice Denham as Mr. Mortimer |
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Robert Morley as Miss Mary |
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Sydne Rome as Flicky |
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Adrienne Posta as Drummond's Daily |
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Florence Desmond as Lady Manderley |
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Ronnie Stevens as Peregrine Carruthers |
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Virginia North as Robot No. 9 |
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Nicholas Phipps as Lord Dunnberry |
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Yutte Stensgaard as Robot No. 1 |
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George Belbin as Maj. Newman |
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Richard Hurndall as President of Aircraft Company |
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Marga Roche as Birgit |
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Douglas Sheldon as Kruger |
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Maria Aitken as Robot Flight Attendant (uncredited) |
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Bob Anderson as Senior Aerodynamics Engineer (uncredited) |
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Peter Brace as Petersen Bodyguard (uncredited) |
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Johnny Briggs as Air Traffic Controller (uncredited) |
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Shakira Caine as Robot Observer (uncredited) |
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Carmen Dene as Party Girl in Green Dress (uncredited) |
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Frank Gatliff as Man Sitting Behind Pilot |
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Philip Gilbert as Test Co-Pilot (uncredited) |
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Dora Graham as Robot Twin (uncredited) |
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Doris Graham as Robot Twin (uncredited) |
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Aidan Harrington as Test Navigator (uncredited) |
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William Kendall as Wing Commander Aston (uncredited) |
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Juba Kennerley as Test Area Official with Bow Tie (uncredited) |
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Olga Linden as Blond Robot in Green Jumpsuit (uncredited) |
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Joanna Lumley as Robot Saboteur (uncredited) |
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John Paul as Test Pilot (uncredited) |
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Patsy Snell as Brunette Robot with Bangs (uncredited) |
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Guy Standeven as Flight Test Observer (uncredited) |
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Totti Truman Taylor as Cookery Student Wearing Hat (uncredited) |
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Jim Tyson as Hefty Cookery Student (uncredited) |
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Les White as Petersen Bodyguard (uncredited) |
| Writing | Herman C. McNeile | Characters |
| Camera | Ernest Steward | Director of Photography |
| Editing | Ernest Hosler | Editor |
| Sound | Charles Blackwell | Original Music Composer |
| Writing | David D. Osborn | Writer |
| Directing | Ralph Thomas | Director |
| Writing | Liz Charles-Williams | Writer |
| Production | Betty E. Box | Producer |
| Art | Edward Marshall | Art Direction |
| Production | James H. Ware | Associate Producer |
| Costume & Make-Up | Basil Newall | Makeup Artist |
| Costume & Make-Up | Eddie Knight | Makeup Artist |
| Costume & Make-Up | Helene Bevan | Hairdresser |
| Writing | Gerard Fairlie | Characters |
| Costume & Make-Up | Stella Rivers | Hairdresser |
| Production | Donald Toms | Production Manager |
| Sound | Ken Barker | Sound Recordist |
| Directing | Simon Relph | Assistant Director |
| Directing | Miguel Gil | First Assistant Director |
| Crew | Jimmy Ward | Special Effects |
| Art | Martin Atkinson | Set Dresser |
| Crew | Garth Inns | Special Effects |
| Sound | Dudley Messenger | Sound Recordist |
| Crew | Kit West | Special Effects |
| Directing | Gladys Goldsmith | Continuity |
| Directing | Nigel Wooll | Second Assistant Director |
| Crew | Peter Diamond | Stunts |
| Camera | James Bawden | Camera Operator |
| Crew | Charles Staffell | Special Effects |
| Costume & Make-Up | Yvonne Caffin | Costume Coordinator |
| Sound | Charles Blackwell | Music Director |
| Sound | Don Sharpe | Sound Editor |