Credits
Cast
Rex Reason
Dr. Thomas Morgan
Jeff Morrow
Dr. William Barton
Leigh Snowden
Marcia Barton
Gregg Palmer
Jed Grant
Maurice Manson
Dr. Borg
James Rawley
Dr. Johnson
David McMahon
Capt. Stanley
Paul Fierro
Morteno
Lillian Molieri
Mrs. Morteno
Frank Chase
Steward
Larry Hudson
State Trooper
Ricou Browning
The Gill Man (in water)(uncredited)
Don Megowan
The Gill Man (on land)(uncredited)
George Sowards
Ranch Hand (uncredited)
Art
Alexander Golitzen
Art Direction
Robert Emmet Smith
Art Direction
Julius Rosenkrantz
Props
John P. Austin
Set Decoration
Russell A. Gausman
Set Decoration
Camera
Lew Swartz
Assistant Camera
Eddie Pyle
Camera Operator
Maury Gertsman
Director of Photography
Costume & Make-Up
Jay A. Morley Jr.
Costume Design
Roger J. Weinberg
Costume Design
Joan St. Oegger
Hairstylist
Vincent Romaine
Makeup Artist
Jack Kevan
Makeup Effects Designer
Bud Westmore
Makeup Supervisor
Directing
John Sherwood
Director
Editing
Edward Curtiss
Editor
Lighting
Max Nippell
Gaffer
Production
William Alland
Producer
Sound
Henry Mancini
Original Music Composer
Heinz Roemheld
Original Music Composer
Irving Gertz
Original Music Composer
Leslie I. Carey
Sound
Robert Pritchard
Sound
George Hoagland
Sound Editor
Peter Berkos
Sound Editor
Robert L. Bratton
Sound Editor
Visual Effects
Clifford Stine
Visual Effects, Visual Effects Camera
Writing
Arthur A. Ross
Screenplay, Story