Directed by
| Franklin Adreon | ||
Writing Credits (in alphabetical order)
| Robert Smith | ... | (written by) |
Cast (in credits order)
| Lloyd Bridges | ... | Mike Nelson | |
| John Marley | ... | Frank Johnson | |
| Dan White | ... | Sheriff Wyatt Walsh | |
 |
Ann Morrison | ... | Mrs. Emmanuel Krag (as Anne Morrison) |
|
|
Don Devlin | ... | Ted Johnson |
|
|
Warren Drew | ... | Ed - Deputy Sheriff |
|
|
Doug Carlson | ... | USCG Lieutenant |
Produced by
| Leon Benson | ... | producer |
| Ivan Tors | ... | executive producer |
Cinematography by
| Brick Marquard | ... | director of photography |
Editing by
| Frank Baldridge | ||
Casting By
| Henry Rackin | ... | (uncredited) |
Art Direction by
| Bruce Bushman | ||
| Jack T. Collis | ||
Set Decoration by
| Carl Biddiscombe | ||
Production Management
| Joe Wonder | ... | production supervisor |
Second Unit Director or Assistant Director
| William P. Owens | ... | assistant director (as William Owens) |
Sound Department
| James Fritch | ... | sound editor |
| Al Lincoln | ... | sound supervisor |
| Robert Post | ... | sound mixer |
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) |
Casting Department
| Lawrence Parke | ... | casting supervisor (as Larry Parke) |
Costume and Wardrobe Department
| Michael Tierney | ... | wardrobe |
Music Department
| Wayne Hughes | ... | 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 |
