Director
Antonio Margheriti
DIRECTOR
Stars (in credits order)
Tony Russel
Cmdr. Mike Halstead
Lisa Gastoni
Lt. Connie Gomez
Massimo Serato
Mr. Nurmi
Carlo Giustini
Lt. Ken
Franco Nero
Lt. Jake Jacowitz
Enzo Fiermonte
General Paul H. Fowler
Umberto Raho
General Maitland
Vittorio Bonos
Delfos Scientist
Aldo Canti
Gymnasium Victim
Franco Doria
Shrunken Anton Fryd
Margherita Horowitz
Mrs. Fowler
Carlo Kechler
Werner
Rodolfo Lodi
Claridge
Renato Montalbano
Detective
Piero Pastore
Scientist on Planet Delfos
Isarco Ravaioli
Quarters Sergeant
Franco Ressel
Lt. Jeffries
Claudio Scarchilli
Halstead's Pilot
Moa Tahi
Abductor Chief
Victoria Zinny
Vicky Halstead
Ugo Ballester
Scientistuncredited
Calisto Calisti
Dispatcheruncredited
Aldo D'Ambrosio
Anton Fryduncredited
Giuliano Dell'Ovo
Astronautuncredited
Lino Desmond
Schneideruncredited
Gianni Di Segni
Internuncredited
Alfonso Giganti
Control room technicianuncredited
Michel Lemoine
uncredited
Sandro Mondini
Delfos Scientistuncredited
Vezio Natili
Giuliano Raffaelli
Franciniuncredited
Archie Savage
Proteo Theater Performeruncredited
Kitty Swan
Abudctor Agentuncredited
Goffredo Unger
Charles De Lautyuncredited