Dr. Robert Morgan
Vincent Price
Ruth Collins
Franca Bettoia
TV Reporter
Enrico Salvatore
Passerby
Alessandro Tedeschi
Ruth Collins (voice)
Carolyn De Fonseca
Virginia Morgan
Emma Danieli
Ben Cortman
Giacomo Rossi Stuart
Dr. Mercer
Umberto Raho
Kathy Morgan
Christi Courtland
Governor
Antonio Corevi
Ettore Ribotta
Rolando De Rossi
New People Leader
Giuseppe Mattei
Novel
Richard Matheson
Screenplay
Executive Producer
Samuel Z. Arkoff
Key Grip
Federico Tocci
Still Photographer
Alfonso Avincola
Producer
Robert L. Lippert
Electrician
Renato Pedrini
Camera Operator
Alvaro Lanzoni
Costume Design
Angiolina Menichelli
Ubaldo Ragona
Music Editor
Norman B. Schwartz
Script Supervisor
Rita Agostini
Sound Recordist
Armando Timpani
Costume Supervisor
Carmen Frosali
Boom Operator
Bruno Zanoli
Production Manager
Vico Vaccaro
Production Supervisor
Luciano Volpato
Other
Franco Rispoli
Ermete Santini
Director
Sidney Salkow
Editor
Gene Ruggiero
Set Decoration
Brunello Serena Ulloa
Makeup Artist
Pierantonio Mecacci
Sound Engineer
Enzo Silvestri
Assistant Director
Carlo Grandone
William F. Leicester
Furio M. Monetti
Associate Producer
Harold E. Knox
Director of Photography
Franco Delli Colli
Original Music Composer
Bert Shefter
Paul Sawtell
Assistant Camera
Angelo Lannutti
Assistant Production Manager
Lionello Meucci
Orchestrator
Alfonso D'Artega
Art Direction
Giorgio Giovannini