Frank Douglas as a Monster
Henry Hite
Col. Steve Connors
Phil Morton
Barry Hopkins
Del Clark
Art Scott
Leonard Holstein
Dean Tompis
Jim Bassler
Rick Paul
Girl at Dance
Lorri Perry
Narrator / Boy at Dance
Bill Rebane
Dr. Nora Kramer (unconfirmed)
Lois Brooks
Rork Stevens
Robert Simons
Dr. Chris Manning
Peter M. Thompson
Ruth
June Travis
George Perry
Stranded Motorist
Aviva Crane
Kelly, the truck driver
Stu Taylor
Screenplay
Producer
Director
Herschell Gordon Lewis
Production Design
Additional Dialogue
Dok Stanford
Jeff Smith
Other
Thomas Casey
Director of Photography
Frank Pfeiffer
Makeup Artist
Lillian Toth