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Tuesday Weld as Libby Bushmill / Libby Smith |
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Richard Beymer as Mike Pulaski |
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Terry-Thomas as Professor Bruce Patterson |
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Celeste Holm as Helen Bushmill |
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Francesca Bellini as Gladys Schmidlapp |
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Howard McNear as Dr. Dylan Bowman |
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Ann Del Guercio as Liz Turner |
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Roxanne Arlen as Mrs. Roberts |
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Alice Reinheart as Mrs. Bowman |
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Jessica Dachshund as Jessica |
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Stephen Bekassy as Paul |
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Danielle Aubry as French Stewardess |
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Joe Brooks as Driver |
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George Bruggeman as Paul Revere |
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Jerry Fujikawa as Frank, Gardener |
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Margo Moore as Mabel Smith |
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Stephen Chase as District Attorney |
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Dick Whittinghill as Radio DJ (Voice) |
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Roy Wright as Big Fireman |
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Paul Maxey as Big Man in Jaguar in Dream |
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Robert Karnes as Police Officer |
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Larry Thor as Police Officer in Sheriff's Office |
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Carol Christensen as Student |
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Christopher Bowler as Student |
| Art | Jack Martin Smith | Art Direction |
| Art | Leland Fuller | Art Direction |
| Editing | Hugh S. Fowler | Editor |
| Directing | Frank Tashlin | Director |
| Production | Jack Cummings | Producer |
| Writing | Budd Grossman | Screenplay |
| Camera | Daniel L. Fapp | Director of Photography |
| Writing | Budd Grossman | Theatre Play |
| Costume & Make-Up | Donfeld | Costume Design |
| Costume & Make-Up | Ben Nye | Makeup Artist |
| Directing | Ad Schaumer | Assistant Director |
| Sound | Warren B. Delaplain | Sound |
| Sound | E. Clayton Ward | Sound |
| Costume & Make-Up | Helen Turpin | Hairstylist |
| Writing | Frank Tashlin | Screenplay |
| Sound | John Williams | Original Music Composer |
| Art | Paul S. Fox | Set Decoration |
| Art | Walter M. Scott | Set Decoration |
| Crew | Carl Shain | Dialogue Coach |
| Costume & Make-Up | Nancy Sharp | Wardrobe Designer |
| Visual Effects | L.B. Abbott | Visual Effects |
| Sound | Robert Franklyn | Orchestrator |