Directed by
| Alan J. Levi | ... | (directed by) |
Writing Credits
| Leslie Stevens | ... | (written by) |
| H.G. Wells | ... | (novel) |
Cast (in credits order) complete, awaiting verification
| Ben Murphy | ... | Sam Casey | |
| Katherine Crawford | ... | Dr. Abby Lawrence | |
| Richard Dysart | ... | Leonard Driscoll (as Richard A. Dysart) | |
| Dana Elcar | ... | Dr. Harold Schuyler | |
| Paul Shenar | ... | Charles Edward Royce | |
| Quinn K. Redeker | ... | Vince Rogers (as Quinn Redeker) | |
| Gregory Walcott | ... | Officer | |
| Len Wayland | ... | Captain Whelan | |
| Cheryl Miller | ... | Receptionist | |
| Mike Lane | ... | Guard (as Michael Lane) | |
| H.M. Wynant | ... | Captain Ballard | |
| Austin Stoker | ... | Dive Officer | |
| Dave Shelley | ... | Mechanic | |
 |
Robert Forward | ... | Chief Controller |
| Jim Raymond | ... | Dietz | |
| Rest of cast listed alphabetically: | |||
| James W. Gavin | ... | Helicopter Pilot (uncredited) | |
| Richard Kennedy | ... | CHP Officer (uncredited) | |
Produced by
| Harve Bennett | ... | executive producer |
| Robert F. O'Neill | ... | producer (produced by) |
| Leslie Stevens | ... | supervising producer |
Music by
| Billy Goldenberg | ... | (music) |
Cinematography by
| Enzo A. Martinelli | ... | director of photography |
Editing by
| Robert F. Shugrue | ... | film editor |
Art Direction by
| David Marshall | ||
Set Decoration by
| Lowell Chambers | ... | (set decorations) |
Production Management
| Jack Stubbs | ... | unit manager (as D. Jack Stubbs) |
| Charles Clement | ... | post production operations head (uncredited) |
Second Unit Director or Assistant Director
| David Hall | ... | assistant director (as David H. Hall) |
| Art Seidel | ... | second assistant director |
| Alain Silver | ... | dga trainee |
Sound Department
| Charlie King | ... | sound (as Charles King) |
| Kendrick Sweet | ... | sound effects editor (as Ken Sweet) |
Special Effects by
| Russel Hessey | ... | special effects coordinator |
Stunts
| Craig R. Baxley | ... | stunt coordinator / stunt double |
| Jean Coulter | ... | stunt double (uncredited) |
| Monty Laird | ... | stunts (uncredited) |
Camera and Electrical Department
| Tony Rivetti | ... | first assistant camera: "a" camera |
| Michael R. Marquette | ... | assistant camera (uncredited) |
| Reggie Newkirk | ... | key first assistant camera (uncredited) |
Costume and Wardrobe Department
| George Whittaker | ... | costumer: women (as George R. Whittaker) |
| Joan Joseff | ... | costume jeweller (uncredited) |
Music Department
| Fred Prior | ... | music editor |
