Jack Arnold
Director
Harry Essex
Screenplay
Arthur A. Ross
Screenplay
William Alland
Producer
Henry Mancini
Original Music Composer
Hans J. Salter
Original Music Composer
Herman Stein
Original Music Composer
William E. Snyder
Director of Photography
Ted J. Kent
Editor
William Alland
Idea
Foster Thompson
Unit Manager
Russ Haverick
Assistant Director
Gene Poole
Stunts
Ginger Stanley
Stunts
Ted White
Stunts
Al Wyatt Sr.
Stunts
Jack N. Young
Stunts
Everett Brown
Grip
Ethmer Roten
Musician
James R. Wolfe
Driver
Robert Hickman
Makeup Artist
Jack Kevan
Makeup Artist
Chris Mueller
Makeup Artist
Ray Craddock
Sound Editor
Albert E. Kennedy
Sound Editor
Maurice Zimm
Story
Hilyard M. Brown
Art Direction
Bernard Herzbrun
Art Direction
Russell A. Gausman
Set Decoration
Ray Jeffers
Set Decoration
Joan St. Oegger
Hairstylist
Bud Westmore
Makeup Artist
Leslie I. Carey
Sound
Joe Lapis
Sound
Scotty Welbourne
Still Photographer
James Curtis Havens
Underwater Camera
Milicent Patrick
Makeup Designer
E. Thomas Case
Makeup Artist
Fred Frank
Assistant Director
Polly Burson
Stunt Double
Joseph Gershenson
Music Director
Milicent Patrick
Creature Design
Evan Baldwin
Special Effects
Rosemary Odell
Wardrobe Master
Robert Emmett Dolan
Additional Music
Milton Rosen
Additional Music
Richard Carlson
Dr. David Reed
Julie Adams
Kay Lawrence
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
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)
James Miller
Old Man (uncredited)
