Vincent Price as Dr. Goldfoot

Frankie Avalon as Craig Gamble

Dwayne Hickman as Todd Armstrong

Susan Hart as Diane

Jack Mullaney as Igor

Fred Clark as D.J. Pevney

Patti Chandler as Robot

Mary Hughes as Robot

Salli Sachse as Robot

Luree Holmes as Robot

Sue Hamilton as Robot

Laura Nicholson as Robot

Marianne Gaba as Robot

China Lee as Robot

Issa Arnal as Robot

Deanna Lund as Robot

Pamela Rodgers as Robot

Leslie Summers as Robot

Sally Frei as Robot

Kay Michaels as Robot

Jan Watson as Robot

Arlene Charles as Robot

Alberta Nelson as Reject #12

Milton Frome as Motorcycle Cop

Hal Riddle as News Vendor

William Baskin as Guard

Vince Barnett as Janitor

Joe Ploski as Cook

Kaye Elhardt as Girl In Nightclub

David Sharpe as

Bob Harris as

Ronnie Rondell Jr. as

Carey Loftin as

Louie Elias as

Troy Milton as

Marie Ann Leslie as

Ron Dayton as

Paul Stader as

Harvey Parry as

Jerry Summers as

Fred Stromsoe as

Diane De Marco as Singer At Condor Club

Annette Funicello as Girl in Dungeon

Deborah Walley as Craig's Cafeteria Date

Harvey Lembeck as Motorcycle Thug in Dungeon

Aron Kincaid as Motorist Who Hits Diane