Dan Matthews
John Howard
Gina Matthews
Mala Powers
Jim Wheatley / ?The Monster Man
Charles Grey
Higgs (butler)
Charles Postal
Sir Lancelot
Native (uncredited)
Charles Cirillo
Jim Whitecloud
Foster Hood
Peter Morgan
Paul Richards
Concha Ramsey
May Wynn
Dr. Ramsey
Gerald Milton
Lino
Duane Grey
Raoul Koom
Richard Gilden
Lead Villager
Martín Garralaga
Dr. Willoughby
Patrick O'Moore
Mr. Trainor
William Hamel
Director
Charles Marquis Warren
Editor
Michael Luciano
Director of Photography
Joseph F. Biroc
Writer
Kenneth Higgins
Producer
Robert Stabler
Original Music Composer
Raoul Kraushaar
Set Decoration
G. W. Bernsten
Supervising Film Editor
Fred W. Berger
Hairstylist
Pat Whiffing
Production Manager
Nathan Barragar
Wardrobe Supervisor
Vou Lee Giokaris
Special Effects
Louis DeWitt
Sound
Hugh McDonald
Robert O'Dell
Makeup Artist
Glen Alden
Assistant Director
Jack Rabin
Art Direction
James W. Sullivan
Property Master
Mike Gordon