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Robert Preston as Alex Dennison |
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Lynn Redgrave as Monica Welles |
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Patrick Macnee as David Mathews |
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Lawrence Pressman as Lloyd Andrews |
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William Russ as Frank Heller |
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Madolyn Smith Osborne as Karen Daniels |
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Jeff Goldblum as Leo Gibbs |
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William Daniels as Walter Lamb |
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John Finnegan as Damon |
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Nicholas Mele as The First Officer |
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Vahan Moosekian as The Moving Man |
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Charles Robinson as The Second Officer |
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Wallace Rooney as Ernie |
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Buck Young as Lieutenant McElroy |
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Sergio Kato as The Third Officer |
| Writing | Richard Levinson | Writer |
| Directing | David Greene | Director |
| Writing | William Link | Writer |
| Directing | Nick Marck | First Assistant Director |
| Lighting | Alan Goldenhar | Gaffer |
| Directing | Maggie Parker | Second Assistant Director |
| Directing | Barbara Amato | Script Supervisor |
| Camera | Arnold L. Rich | Camera Operator |
| Production | Stephanie Austin | Associate Producer |
| Production | William Link | Executive Producer |
| Costume & Make-Up | Chris McBee | Hairstylist |
| Production | Richard Levinson | Executive Producer |
| Costume & Make-Up | Barbara Guedel | Makeup Artist |
| Art | Jerry Wunderlich | Set Decoration |
| Camera | Stevan Larner | Director of Photography |
| Production | Robert Papazian | Producer |
| Art | Lawrence G. Paull | Production Design |
| Sound | Billy Goldenberg | Original Music Composer |
| Production | Ellen Meyer | Casting |
| Editing | Parkie L. Singh | Editor |
| Costume & Make-Up | Dianne Cohoon | Costume Design |
| Sound | Charles T. Knight | Sound Mixer |
| Art | Sal Sommatino | Property Master |
| Camera | Rick Borchardt | Grip |
| Camera | Richard Benda | Assistant Camera |
| Sound | Else Blangsted | Music Editor |
| Sound | Christopher T. Welch | Sound Editor |