The Trygon Factor

Stewart Granger

Superintendent Cooper Smith

Susan Hampshire

Trudy Emberday

Cathleen Nesbitt

Livia Emberday

James Culliford

Luke Emberday

Brigitte Horney

Oberin

Robert Morley

Hubert Hamlyn

Sophie Hardy

Sophie

Colin Gordon

Dice

Eddi Arent

Clossen

Diane Clare

Clare

Allan Cuthbertson

Det. Thompson

Caroline Blakiston

Nun

Richardina Jackson

Nun

Yuri Borienko

Nailer

Conrad Monk

Pasco

John Barrett

Guide

Jeremy Hawk

Bank Manager

James Robertson Justice

Sir John (voice)

Monika Dietrich

Photographic Model

Joseph Cuby