Directed by
| Leon Benson | ||
Writing Credits (in alphabetical order)
| John McManus | ... | (written by) |
Cast (in credits order)
| Lloyd Bridges | ... | Mike Nelson | |
 |
Mark Dana | ... | Dr. Briggs |
| Juli Reding | ... | Blonde Woman | |
|
|
Joseph Breen | ... | Mr. Hart (as Joseph Breen) |
| Joan Patrick | ... | Brunette Woman | |
|
|
Phil Dean | ... | USCG Commander Kelly |
| Michael Keith | ... | Helicopter Lookout | |
Produced by
| Leon Benson | ... | producer |
| Ivan Tors | ... | executive producer |
Cinematography by
| Jacques R. Marquette | ... | director of photography (as Jack Marquette) |
Editing by
| Charles Craft | ||
Casting By
| Henry Rackin | ... | (uncredited) |
Art Direction by
| Jack T. Collis | ||
Set Decoration by
| Charles S. Thompson | ... | (as Charles Thompson) |
Production Management
| Joe Wonder | ... | executive production supervisor |
Second Unit Director or Assistant Director
| Bert Glazer | ... | assistant director |
Sound Department
| Al Lincoln | ... | sound supervisor |
| Robert Post | ... | sound mixer |
| Bert Schoenfeld | ... | sound editor |
Stunts
| Dick Dial | ... | stunt double: Lloyd Bridges (uncredited) |
Camera and Electrical Department
| Lamar Boren | ... | underwater photographer |
| Courtney Brown | ... | underwater photography supervisor |
| Ricou Browning | ... | underwater photography supervisor |
| Gaylin P. Schultz | ... | key grip (uncredited) |
Costume and Wardrobe Department
| Michael Tierney | ... | wardrobe |
Music Department
| Thomas Downing | ... | music editor |
Additional Crew
| Robert C. Cannom | ... | technical advisor (as Commander Robert C. Cannom) |
| Harry Redmond Jr. | ... | supervisor: technical operations |
| Stanley H. Silverman | ... | story editor |
