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