Calificación
Reparto

Anton Diffring
Dr. Erik Leichner

William Sylvester
Vince Warren

Justine Lord
Diane Graydon

Martin Miller
Schroeder

Tony Garnett
Brennan

Warren Mitchell
Chemist

Philip Locke
Foster

Vivienne Leichner
Sylva Langova

Jacqueline Jones
Vanessa Palmer

Geoffrey Palmer
Dr. Tanfield