Robert H. Harris

Pete Dumond

Paul Brinegar

Rivero

Gary Conway

Tony Mantell (Teenage Frankenstein)

Gary Clarke

Larry Drake (Teenage Werewolf)

Malcolm Atterbury

Security Guard Richards

Dennis Cross

Security Guard Monahan

Morris Ankrum

Police Capt. Hancock

Walter Reed

Detective Thompson

John Ashley

Himself

Paul Maxwell

Jeffrey Clayton

Eddie Marr

John Nixon

Heather Ames

Arlene Dow

Robert Shayne

Gary Droz

Rod Dana

Lab Technician

Jacqueline Ebeier

Jane

Herbert L. Strock