Edward L. Cahn
Director
Jerome Bixby
Screenplay
Robert G. Carlisle
Sound Effects Editor
George Rutter
Script Supervisor
Max Frankel
Property Master
Einar Bourman
Wardrobe Master
Vou Lee Giokaris
Wardrobe Master
Frank Webster
Sound
Robert E. Kent
Producer
Edward Small
Executive Producer
Gerald Fried
Original Music Composer
Kenneth Peach
Director of Photography
Grant Whytock
Editor
William Glasgow
Art Direction
Herman N. Schoenbrun
Set Decoration
Layne Britton
Makeup Artist
Kay Shea
Hairstylist
Ira Anderson Jr.
Special Effects
Charles Gemora
Creature Design
Richard Anderson
Dr. Paul Mallon
Elaine Edwards
Tina Enright
Adele Mara
Maria Fiorillo
Luis van Rooten
Dr. Carlo Fiorillo
Jan Arvan
Police Insp. Renaldi
Felix Locher
Dr. Emanuel
Gar Moore
Dr. Enricco Ricci
Bob Bryant
Quintillus Aurelius
Morris Ankrum
Narrator (unconfirmed)
George Sawaya
Tony
Rudy Germane
Police Officer (uncredited)
Jack Kenney
Police Officer (uncredited)
George Sawaya
Tony (uncredited)
Stephen Soldi
Workman (uncredited)
