Robert H. Harris as Pete Dumond

Paul Brinegar as Rivero

Gary Conway as Tony Mantell (Teenage Frankenstein)

Gary Clarke as Larry Drake (Teenage Werewolf)

Malcolm Atterbury as Security Guard Richards

Dennis Cross as Security Guard Monahan

Morris Ankrum as Police Capt. Hancock

Walter Reed as Detective Thompson

John Ashley as Himself

Paul Maxwell as Jeffrey Clayton

Eddie Marr as John Nixon

Heather Ames as Arlene Dow

Robert Shayne as Gary Droz

Rod Dana as Lab Technician

Jacqueline Ebeier as Jane

Thomas Browne Henry as Martin Brace - director of 'Werewolf Meets Frankenstein'

John Phillips as Detective Jones

Paulene Myers as Millie - the Pedestrian