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

Jacqueline Jones

Vanessa Palmer

Geoffrey Palmer

Dr. Tanfield

Sylva Langová

Vivienne Leichner

Peter Howell

Inspector Macready

Oliver MacGreevy

Wilkinson