Directed by
| Jack Arnold | ||
Writing Credits
| Harry Essex | ... | (screenplay by) and |
| Arthur A. Ross | ... | (screenplay by) (as Arthur Ross) |
| Maurice Zimm | ... | (story by) |
| William Alland | ... | (idea) (uncredited) |
Cast (in credits order) verified as complete
| Richard Carlson | ... | Dr. David Reed | |
| Julie Adams | ... | Kay Lawrence (as Julia Adams) | |
| Richard Denning | ... | Dr. Mark Williams | |
| Antonio Moreno | ... | Dr. Carl Maia | |
| Nestor Paiva | ... | Captain Lucas | |
| Whit Bissell | ... | Dr. Edwin Thompson | |
| Bernie Gozier | ... | Zee | |
 |
Henry A. Escalante | ... | Chico (as Henry Escalante) |
| Rest of cast listed alphabetically: | |||
| Ricou Browning | ... | The Gill Man (In Water) (uncredited) | |
| Ben Chapman | ... | The Gill Man (On Land) (uncredited) | |
| Art Gilmore | ... | Narrator (voice) (uncredited) | |
| Perry Lopez | ... | Tomas (uncredited) | |
|
|
Sydney Mason | ... | Dr. Matos (uncredited) |
| Rodd Redwing | ... | Luis (uncredited) | |
Produced by
| William Alland | ... | producer |
Music by
| Henry Mancini | ... | (uncredited) |
| Hans J. Salter | ... | (uncredited) |
| Herman Stein | ... | (uncredited) |
Cinematography by
| William E. Snyder | ... | director of photography |
Editing by
| Ted J. Kent | ||
Art Direction by
| Hilyard M. Brown | ... | (as Hilyard Brown) |
| Bernard Herzbrun | ||
Set Decoration by
| Russell A. Gausman | ||
| Ray Jeffers | ||
Makeup Department
| Joan St. Oegger | ... | hair stylist |
| Bud Westmore | ... | makeup artist |
| E. Thomas Case | ... | makeup artist (uncredited) |
| Robert Hickman | ... | makeup artist (uncredited) |
| Jack Kevan | ... | makeup artist (uncredited) |
| Chris Mueller | ... | makeup artist (uncredited) |
| Milicent Patrick | ... | makeup designer (uncredited) |
Production Management
| Foster Thompson | ... | unit manager (uncredited) |
Second Unit Director or Assistant Director
| Fred Frank | ... | assistant director |
| James Curtis Havens | ... | director: underwater sequences (as James C. Havens) |
| Russ Haverick | ... | assistant director (uncredited) |
Sound Department
| Leslie I. Carey | ... | sound |
| Joe Lapis | ... | sound |
| Ray Craddock | ... | sound editor (uncredited) |
| Albert E. Kennedy | ... | sound editor (uncredited) |
Visual Effects by
| Brian J. McNamara | ... | Digital Restoration Artist |
Stunts
| Polly Burson | ... | stunt double: Julie Adams (uncredited) |
| Gene Poole | ... | underwater stunts (uncredited) |
| Ginger Stanley | ... | underwater stunts (uncredited) |
| Ted White | ... | stunts (uncredited) |
| Al Wyatt Sr. | ... | fire stunts (uncredited) |
| Jack N. Young | ... | stunts (uncredited) |
Camera and Electrical Department
| Scotty Welbourne | ... | special photography (as Charles S. Welbourne) |
| Everett Brown | ... | first grip (uncredited) |
Costume and Wardrobe Department
| Rosemary Odell | ... | wardrobe: Miss Adams |
Editorial Department
| Greg Rodin | ... | 4K Digital Restoration: Universal Pictures |
Music Department
| Joseph Gershenson | ... | musical director |
| Robert Emmett Dolan | ... | composer: stock music (uncredited) |
| Milton Rosen | ... | composer: stock music (uncredited) |
| Ethmer Roten | ... | musician: flute (uncredited) |
Additional Crew
| Reynold Brown | ... | movie poster art (uncredited) |
| Milicent Patrick | ... | creature designer (uncredited) |
| James R. Wolfe | ... | chief diver (uncredited) |
