Bernard L. Kowalski
Director
Gene Corman
Producer
John M. Nickolaus Jr.
Director of Photography
Carlo Lodato
Editor
Roger Corman
Executive Producer
Charles Rosher Jr.
First Assistant Camera
Jack Bohrer
Production Manager
Al Overton Sr.
Sound
Richard M. Rubin
Property Master
Kinta Zertuche
Production Secretary
Daniel Haller
Art Direction
Leo Gordon
Screenplay
Leo Gordon
Original Story
Alexander Laszlo
Original Music Composer
Anthony Magro
Associate Editor
Ken Clark
Steve Benton
Yvette Vickers
Liz Walker
Jan Shepard
Nan Greyson
Michael Emmet
Cal Moulton
Tyler McVey
Doc Greyson
Bruno VeSota
Dave Walker
Gene Roth
Sheriff Kovis
Dan White
Porky Reed
George Cisar
Lem Sawyer
Guy Buccola
Giant Leech (uncredited)
Joseph Hamilton
Sam Peters (uncredited)
Walter Kelley
Mike (uncredited)
Bill Scully
Search Party Member (uncredited)
Carl Sklover
Search Party Member (uncredited)
Ross Sturlin
Giant Leech (uncredited)
James Miller
Jermey (uncredited)
Killian Miller
Victim (uncredited)
