"An American astronaut mysteriously disappears from his spacecraft as it parachutes to Earth. He is apparently replaced by or turned into a large, radioactive, humanoid monster. A team of scientists and military men attempt to capture the monster."
Henry Hite
as Frank Douglas as a Monster
Phil Morton
as Col. Steve Connors
Lois Brooks
as Dr. Nora Kramer (unconfirmed)
Rork Stevens
as
Robert Simons
Peter M. Thompson
as Dr. Chris Manning
June Travis
as Ruth
George Perry
Aviva Crane
as Stranded Motorist
Stu Taylor
as Kelly, the truck driver
Barry Hopkins
Del Clark
Art Scott
Leonard Holstein
Dean Tompis
Jim Bassler
Rick Paul
Lorri Perry
as Girl at Dance
Bill Rebane
as Narrator / Boy at Dance
Director
Herschell Gordon Lewis
Jeff Smith
Screenplay
Dok Stanford
Producer
Thomas Casey
Other
Additional Dialogue
Frank Pfeiffer
Director of Photography
Production Design
Lillian Toth
Makeup Artist