Directed by
| Ralph Nelson | ||
Writing Credits
| Peter Stone | ... | (screenplay) and |
| Frank Tarloff | ... | (screenplay) |
| S.H. Barnett | ... | (story) |
Cast (in credits order) verified as complete
| Cary Grant | ... | Walter | |
| Leslie Caron | ... | Catherine | |
| Trevor Howard | ... | Houghton | |
| Jack Good | ... | Stebbings | |
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Sharyl Locke | ... | Jenny |
| Pip Sparkes | ... | Anne (as Pip Sparke) | |
| Verina Greenlaw | ... | Christine | |
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Stephanie Berrington | ... | Elizabeth |
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Jennifer Berrington | ... | Harriet |
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Laurelle Felsette | ... | Angelique |
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Nicole Felsette | ... | Dominique |
| Rest of cast listed alphabetically: | |||
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Alex Finlayson | ... | Dr. Bigrave (uncredited) |
| Peter Forster | ... | Chaplain (uncredited) | |
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Richard Lupino | ... | Radioman (uncredited) |
| Frank Marocco | ... | Accordionist (uncredited) | |
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John Napier | ... | Lt. Cartwright (uncredited) |
| Simon Scott | ... | Captain of Submarine USS Sailfin (uncredited) | |
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Don Spruance | ... | Navigator (uncredited) |
| Ken Swofford | ... | Helmsman - Submarine USS Sailfin (uncredited) | |
Produced by
| Robert Arthur | ... | producer |
Music by
| Cy Coleman | ||
Cinematography by
| Charles Lang | ... | director of photography (as Charles Lang Jr.) |
Editing by
| Ted J. Kent | ||
Art Direction by
| Henry Bumstead | ||
| Alexander Golitzen | ||
Set Decoration by
| John McCarthy Jr. | ... | (as John McCarthy) (set decorations) |
| George Milo | ... | (set decorations) |
Costume Design by
| Ray Aghayan | ... | (uncredited) |
Makeup Department
| Larry Germain | ... | hair stylist |
| Bud Westmore | ... | makeup artist |
Production Management
| Edward Muhl | ... | in charge of production |
| Ernest B. Wehmeyer | ... | production manager (as Ernest Wehmeyer) |
Second Unit Director or Assistant Director
| Tom Shaw | ... | assistant director |
| James Welch | ... | assistant director (uncredited) |
Sound Department
| James R. Alexander | ... | sound |
| William Russell | ... | sound |
| Waldon O. Watson | ... | sound |
Special Effects by
| Chuck Gaspar | ... | special effects foreman (uncredited) |
Visual Effects by
| Brian J. McNamara | ... | Digital restoration artist |
| Jim Danforth | ... | miniature maker (uncredited) |
Stunts
| Paul K. Nixon | ... | safety diver and skipper (as Paul T. Nixon) / underwater stunts (as Paul T. Nixon) |
Camera and Electrical Department
| William A. Fraker | ... | camera operator (uncredited) |
| Léo L. Fuchs | ... | still photographer (uncredited) |
Music Department
| Joseph Gershenson | ... | music supervisor |
| Cy Coleman | ... | conductor (uncredited) / orchestrator (uncredited) |
| Ethmer Roten | ... | musician: flute (uncredited) |
Additional Crew
| Wayne Fitzgerald | ... | title designer (uncredited) |
