Character Name : Dr. John Fielding

Original Name : John Merivale

Gender : Male

Character Name : Ellen Fielding

Original Name : Didi Sullivan

Gender : Female

Character Name : Max Gunther

Original Name : Gérard Herter

Gender : Male

Character Name : Linda

Original Name : Daniela Rocca

Gender : Female

Character Name : Prof. Rodriguez

Original Name : Vittorio André

Gender : Male

Character Name : Bob

Original Name : Daniele Vargas

Gender : Male

Character Name : Police Inspector

Original Name : Nerio Bernardi

Gender : Male

Character Name : Prof. Rodriguez's Assistant

Original Name : Giacomo Rossi Stuart

Gender : Male

Character Name : Indian Dancer

Original Name : Gail Pearl

Gender : Female

Character Name : Astronomo

Original Name : Tom Felleghy

Gender : Male

Character Name : Nieto

Original Name : Arturo Dominici

Gender : Male

Character Name : Mexican at police station (uncredited)

Original Name : Mario Bava

Gender : Male

Character Name : Narrator (voice)

Original Name : Renzo Palmer

Gender : Male

Character Name : Prof. John Fielding (voice)

Original Name : Leslie Daniels

Gender : Male

Character Name : Prof. John Fielding (voice)

Original Name : Renato De Carmine

Gender : Male

Character Name : Max Gunther (voice)

Original Name : Stefano Sibaldi

Gender : Male

Character Name : Prof. Rodriguez (voice)

Original Name : Michele Malaspina

Gender : Male

Character Name : Bob (voice)

Original Name : Rolf Tasna

Gender : Male