Directed by
| Monroe P. Askins | ... | (as Monroe Askins) |
Writing Credits (in alphabetical order)
| Don Moore | ... | (written by) |
Cast (in credits order) complete, awaiting verification
| Lloyd Bridges | ... | Mike Nelson | |
| Robert Montgomery Jr. | ... | Chan Harrington III | |
| Tyler McVey | ... | Dr. Widmer | |
| Wayne Mallory | ... | Hendricks - Widmer's Assistant | |
| Darlene Tompkins | ... | Ginny - Chan's Girlfriend | |
Produced by
| Leon Benson | ... | producer |
| Ivan Tors | ... | executive producer |
Cinematography by
| Monroe P. Askins | ... | director of photography (as Monroe Askins) |
Editing by
| Frank Baldridge | ||
Casting By
| Henry Rackin | ... | (uncredited) |
Production Management
| Bill Schwartz | ... | production manager |
Second Unit Director or Assistant Director
| Bert Glazer | ... | assistant director |
Sound Department
| Al Lincoln | ... | sound supervisor |
| Jack Milner | ... | sound editor |
| 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) |
Costume and Wardrobe Department
| Michael Tierney | ... | wardrobe |
Music Department
| Milton Lustig | ... | music editor |
Additional Crew
| Harry Redmond Jr. | ... | supervisor: technical operations |
| Stanley H. Silverman | ... | story editor |
