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

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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)

Sam Schneider

Producer

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Special Effects

Salvatore Billitteri

Editor

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Director of Photography

Filippo Sanjust

Writer

Riccardo Freda

Director

Roberto Nicolosi

Original Music Composer

Bruno Vailati

Producer

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Co-Director

Mario Serandrei

Editor

Roman Vlad

Original Music Composer

Odoardo Fiory

Assistant Director

Carlo Rustichelli

Sound Effects

Massimo De Rita

Production Manager

Filippo Sanjust

Costume Design

Antonio Rinaldi

Gaffer

Riccardo Freda

Writer

Maurice Rosenblum

Sound Recordist

Lionello Santi

Executive Producer

Lux Film

IT

Climax Pictures

Galatea Film

IT