Don Barton
Director
Don Barton
Producer
Robert M. Smith Jr.
Associate Producer
Dick Stratton
Associate Producer
Jamie DeFrates
Original Music Composer
Barry Hodgin
Original Music Composer
Lee J. O'Donnell
Makeup Artist
Paul Galloway
Unit Manager
George J. Yarbrough
Editor
Martha Fillyaw
Creature Design
Ron Kivett
Creature Design
Les Lancaster
Creature Design
Don Barton
Screenplay
Ron Kivett
Original Story
Lee O. Larew
Original Story
Jack McGowan
Director of Photography
Marshall Grauer
Dr. Kurt Leopold
Wade Popwell
The Monster
Paul Galloway
Sheriff Lou Krantz
Gerald Cruse
Marine Biologist Rex
Sanna Ringhaver
INPIT Agent Martha Walsh
Dave Dickerson
INPIT Agent Walker Stevens
Rich Valliere
Deputy Sheriff
Nancy Lien
Girl Camper
Russell Holcomb
Gloria Brady
Del Galloway
Hal Nearhoof
Jim Merrill
Elizabeth Barton
Girl on Porch
Jim Merrill
Boy on Porch
Bob Knowles
Carol Thompson
Jack Weatherford
Doug Thomas
Reporter
