Elenco
John Merivale
Dr. John Fielding
Didi Sullivan
Ellen Fielding
Gérard Herter
Max Gunther
Daniela Rocca
Linda
Vittorio André
Prof. Rodriguez
Daniele Vargas
Bob
Nerio Bernardi
Police Inspector
Giacomo Rossi Stuart
Prof. Rodriguez's Assistant
Gail Pearl
Indian Dancer
Tom Felleghy
Astronomo
Arturo Dominici
Nieto
Mario Bava
Mexican at police station (uncredited)
Renzo Palmer
Narrator (voice)
Leslie Daniels
Prof. John Fielding (voice)
Renato De Carmine
Prof. John Fielding (voice)
Stefano Sibaldi
Max Gunther (voice)
Michele Malaspina
Prof. Rodriguez (voice)
Rolf Tasna
Bob (voice)
Equipe
Mario Bava
Director of Photography
Filippo Sanjust
Writer
Mario Bava
Special Effects
Sam Schneider
Producer
Bruno Vailati
Producer
Salvatore Billitteri
Editor
Roberto Nicolosi
Original Music Composer
Riccardo Freda
Director
Mario Serandrei
Editor
Mario Bava
Co-Director
Roman Vlad
Original Music Composer
Lionello Santi
Executive Producer
Carlo Rustichelli
Sound Effects
Maurice Rosenblum
Sound Recordist
Antonio Rinaldi
Gaffer
Massimo De Rita
Production Manager
Riccardo Freda
Writer
Odoardo Fiory
Assistant Director
Filippo Sanjust
Costume Design