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
Director
Ubaldo Ragona
Sidney Salkow
Producer
Robert L. Lippert
Editor
Gene Ruggiero
Set Decoration
Brunello Serena Ulloa
Costume Design
Angiolina Menichelli
Makeup Artist
Pierantonio Mecacci
Production Manager
Vico Vaccaro
Production Supervisor
Luciano Volpato
Sound Engineer
Enzo Silvestri
Sound Recordist
Armando Timpani
Boom Operator
Bruno Zanoli
Still Photographer
Alfonso Avincola
Camera Operator
Alvaro Lanzoni
Electrician
Renato Pedrini
Costume Supervisor
Carmen Frosali
Music Editor
Norman B. Schwartz
Script Supervisor
Rita Agostini
Other
Franco Rispoli
Ermete Santini
Director of Photography
Franco Delli Colli
William F. Leicester
Furio M. Monetti
Associate Producer
Harold E. Knox
Assistant Director
Carlo Grandone
Original Music Composer
Paul Sawtell
Bert Shefter
Assistant Camera
Angelo Lannutti
Assistant Production Manager
Lionello Meucci
Art Direction
Giorgio Giovannini
Orchestrator
Alfonso D'Artega