Written and Directed by Edward Bernds
Produced by Richard Heermance
Cinematography by Ellsworth Fredericks
Film Editing by Eda Warren
Music by Leith Stevens
Production Design by Alberto Vargas
Art Direction by Dave Milton
Set Decoration by Joseph Kish
Makeup : Emile LaVigne (surface beasts)
Production Manager : Allen K. Wood
Assistant Director : Don Torpin
Special Effects : Irving Block, Jack Rabin, Milt Rice
Cast
Hugh Marlowe (John Borden)
Nancy Gates (Garnet)
Rod Taylor (Herbert Ellis)
Lisa Montell (Deena)
Nelson Leigh (Dr. Eldon Galbraithe)
Christopher Dark (Henry Jaffee)
Everett Glass (Timmek, President of the Council)
Booth Colman (Mories)
Stanley Fraser (Elda, councilman)
Shirley Patterson (Elaine)
William Vedder (James, councilman)
Paul Brinegar (Vida)
Rankin Mansfield (Beryl)
Mickey Simpson (Naga, Leader of the Beasts)
Herb Vigran (Second Reporter)