"Teenagers from a small town and their high school science teacher join forces to battle a giant mutant spider, living in a cave nearby and getting hungry."
Ed Kemmer
as Art Kingman
June Kenney
as Carol Flynn
Eugene Persson
as Mike Simpson
Gene Roth
as Sheriff Cagle
Hal Torey
as Mr. Simpson
June Jocelyn
as Mrs. Flynn
Mickey Finn
as Sam Haskel
Sally Fraser
as Helen Kingman
Troy Patterson
as Joe
Skip Young
as Sam
Howard Wright
as Jake
Bill Giorgio
as Pete Sanders
Hank Patterson
as Hugo
Jack Kosslyn
as Mr. Fraser
Bob Garnet
as Pest Control Man
Shirley Falls
as Switchboard Operator
Robert Tetrick
as Deputy Dave
Nancy Kilgas
as Dancer
David Tomack
as Power Line Foreman
Merritt Stone
as Jack Flynn
George Worthing Yates
Screenplay
Bert I. Gordon
Director
Special Effects
Producer
Screenstory
Jack A. Marta
Director of Photography
Albert Glasser
Original Music Composer
László Görög
Flora M. Gordon
Special Effects Assistant
James H. Nicholson
Executive Producer
Samuel Z. Arkoff
William F. Calvert
Set Decoration
John W. Rogers
Assistant Director
Marty Moss
Production Supervisor
Kay Shea
Hairstylist
Allan Snyder
Makeup Artist
Ronald Sinclair
Supervising Film Editor
Jim Donnaldson
Animal Coordinator
Marjorie Corso
Wardrobe Supervisor
Music Director
James Harris
Property Master
Al Overton Sr.
Sound Recordist