Ricatto

Oskar Homolka

Desius Heiss

Derek Farr

Robert Graham

Muriel Pavlow

Margaret Heiss

Manning Whiley

Corder Morris

Diana Dors

Mildred

Kathleen Harrison

Mrs. Catt

Garry Marsh

Major Elliot

Kenneth Griffith

Archie Fellows

Jan Van Loewen

Professor Vanetti

Johnnie Schofield

Inspector Robson

Irene Handl

Ruby Towser

Katie Johnson

Woman in Shop

Vi Kaley

Flower Seller

David Keir

Gentlemen Customer

James Knight

Publican

Eliot Makeham

Theatre Usher