Diretor/a
Don Barton
DIRETOR/A
Arnold Stevens
Elenco (na ordem dos créditos)
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
ATOR
Gloria Brady
Del Galloway
Hal Nearhoof
Jim Merrill
Boy on porch
Elizabeth Barton
Girl on porch
Bob Knowles
Carol Thompson
Jack Weatherford
Doug Thomas
Reporter
Frank Crowell
uncredited