Henry Hite

Frank Douglas as a Monster

Phil Morton

Col. Steve Connors

Lois Brooks

Dr. Nora Kramer (unconfirmed)

Rork Stevens

Robert Simons

Peter M. Thompson

Dr. Chris Manning

June Travis

Ruth

George Perry

Aviva Crane

Stranded Motorist

Stu Taylor

Kelly, the truck driver

Barry Hopkins

Del Clark

Art Scott

Leonard Holstein

Dean Tompis

Bill Rebane

Herschell Gordon Lewis