John Merivale
Dr. John Fielding
Acting
Didi Sullivan
Ellen Fielding
Acting
Gérard Herter
Max Gunther
Acting
Daniela Rocca
Linda
Acting
Vittorio André
Prof. Rodriguez
Acting
Daniele Vargas
Bob
Acting
Nerio Bernardi
Police Inspector
Acting
Giacomo Rossi Stuart
Prof. Rodriguez's Assistant
Acting
Gail Pearl
Indian Dancer
Acting
Tom Felleghy
Astronomo
Acting
Arturo Dominici
Nieto
Acting
Mario Bava
Mexican at police station (uncredited)
Directing
Renzo Palmer
Narrator (voice)
Acting
Leslie Daniels
Prof. John Fielding (voice)
Acting
Renato De Carmine
Prof. John Fielding (voice)
Acting
Stefano Sibaldi
Max Gunther (voice)
Acting
Michele Malaspina
Prof. Rodriguez (voice)
Acting
Rolf Tasna
Bob (voice)
Acting