Stewart Granger as Superintendent Cooper Smith

Susan Hampshire as Trudy Emberday

Cathleen Nesbitt as Livia Emberday

James Culliford as Luke Emberday

Brigitte Horney as Oberin

Robert Morley as Hubert Hamlyn

Sophie Hardy as Sophie

Colin Gordon as Dice

Eddi Arent as Clossen

Diane Clare as Clare

Allan Cuthbertson as Det. Thompson

Caroline Blakiston as Nun

Richardina Jackson as Nun

Yuri Borienko as Nailer

Conrad Monk as Pasco

John Barrett as Guide

Jeremy Hawk as Bank Manager

James Robertson Justice as Sir John (voice)

Monika Dietrich as Photographic Model

Joseph Cuby as

Inigo Jackson as

Russell Waters as

Tom Bowman as

Carmen Dene as

Carol Dilworth as

Siegfried Schürenberg as Sir John

Karen Young as

Pauline Chamberlain as

Maurice Connor as

Peter Hannon as

Cicely Paget-Bowman as

Harry Phipps as

Peter Roy as

Alan Stuart as

John Tatham as

Hilary Wontner as

Fred Wood as