Craig Milford
David Warbeck
Joanna Fitzgerald
Laura Trotter
Dr. Janet Stein
Pat Starke
Mauro Magliozzi
Nazzareno Cardinali
voice dubbing (US version) (uncredited)
Carolyn De Fonseca
Ted Rusoff
Robert Spafford
Anderson
John Ireland
Dr. Elliott
Loris Loddi
Roach
Giorgio Favretto
Inspector Morris
Victor Beard
Professor Schweikert
Sergio Rossi
Dr. Warmick
Giorgio Bonora
Stefano Mazzitelli
Susan
Alessandra Canale
Producer
Luciano Martino
Director
Alberto De Martino
Special Effects Coordinator
Sergio Stivaletti
Screenplay
Gianfranco Clerici
Vincenzo Mannino
Giorgio Salvioni
Director of Photography
Paolo D'Ottavi
Gianlorenzo Battaglia
Editor
Gianfranco Amicucci
Makeup Artist
Barbara Morosetti
Unit Production Manager
Fabrizio De Martino