Directed by
| Jack Arnold | ||
| Ricou Browning | ... | (underwater sequences) |
Writing Credits (in alphabetical order)
| Art Arthur | ... | (story) |
| John McGreevey | ... | (screenplay) |
| Frank Telford | ... | (screenplay) |
| Ivan Tors | ... | (story) |
Cast (in credits order)
| Tony Randall | ... | Fred Miller | |
| Janet Leigh | ... | Vivian Miller | |
| Roddy McDowall | ... | Nate Ashbury | |
| Jim Backus | ... | T.R. Hollister | |
| Ken Berry | ... | Mel Cheever | |
| Charlotte Rae | ... | Myrtle Ruth | |
| Kay Cole | ... | Lorrie Miller | |
| Richard Dreyfuss | ... | Harold Webster | |
| Lou Wagner | ... | Marvin Webster | |
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Gary Tigerman | ... | Tommie Miller |
| Arnold Stang | ... | Jonah | |
| Harvey Lembeck | ... | Sonarman | |
| Merv Griffin | ... | Merv Griffin | |
| Lee Meredith | ... | Dr. Wells | |
| Bruce Gordon | ... | Adm. Sheridan | |
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Frank Schuller | ... | Alan Briggs |
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Henny Backus | ... | Mrs. Webster |
| Pat Henning | ... | Reilly | |
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Jay Laskay | ... | Philo |
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Bud Hoey | ... | Mr. Webster |
| Charles G. Martin | ... | Chief Petty Officer | |
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Frank Logan | ... | Captain |
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Andy Jarrell | ... | Radioman |
| Lora Kaye | ... | Secretary | |
| Rest of cast listed alphabetically: | |||
| D'Janine King-Lasky | ... | Crying Baby (uncredited) | |
Produced by
| William C. Gerrity | ... | assistant producer |
| George Sherman | ... | producer |
| Ivan Tors | ... | executive producer |
Music by
| Jeff Barry | ||
Cinematography by
| Clifford H. Poland Jr. | ... | (as Clifford Poland) |
Editing by
| Erwin Dumbrille | ||
Art Direction by
| Jack T. Collis | ... | (as Jack Collis) |
Set Decoration by
| Don K. Ivey | ... | (as Don Ivey) |
Makeup Department
| Irene Aparicio | ... | hair stylist |
| Guy Del Russo | ... | makeup supervisor |
| Marlana May | ... | makeup artist |
Production Management
| William P. Owens | ... | unit production manager |
Second Unit Director or Assistant Director
| Ricou Browning | ... | director, underwater scenes |
| William C. Gerrity | ... | assistant director |
| Nat Holt Jr. | ... | second assistant director |
Art Department
| Tom Coll | ... | set dresser |
| Dyke Davis | ... | set dresser |
| Jack Johnson | ... | property master |
Sound Department
| Leonard Davison | ... | sound effects editor |
| Howard Warren | ... | recording supervisor |
| Gordon Zahler | ... | sound supervision |
Camera and Electrical Department
| Oscar Barber | ... | camera operator: "b" camera |
| Lamar Boren | ... | underwater cinematographer |
| Jordan Klein Sr. | ... | camera operator / underwater photographer (as Jordan Klein) |
| Walter G. Morris Jr. | ... | gaffer (as Walter Morris) (as Jr) |
| James Pergola | ... | camera operator: "a" camera |
Costume and Wardrobe Department
| Peggy Kunkle | ... | wardrobe |
| Millie Simpkins | ... | wardrober |
Music Department
| Albert Sendrey | ... | music adaptor (as Al Sendrey) / music arranger (as Al Sendrey) |
| Gordon Zahler | ... | music supervisor |
Script and Continuity Department
| Joe Gannon | ... | script supervisor (as Joseph Gannon) |
Additional Crew
| Hank Gale | ... | production assistant (uncredited) |