Blackmailed

Mai Zetterling

Mrs. Carol Edwards

Fay Compton

Mrs. Christopher

Dirk Bogarde

Stephen Mundy

Robert Flemyng

Dr. Giles Freeman

Michael Gough

Maurice Edwards

James Robertson Justice

Mr. Sine

Joan Rice

Alma

Wilfrid Hyde-White

Lord Dearsley

Cyril Chamberlain

Police Constable

Harold Huth

Hugh Sainsbury

Nora Gordon

Sine's Housekeeper

Charles Saynor

Police Constable - Giles' Car

Derrick Penley

Patrick

Peter Owen

Chief Printer

Dennis Brian

Sub-Editor

Arthur Hambling

Inspector Canin

Shirley Wright

Mary

Bruce Seton

Supt. Crowe

Michael Ingham

Crowe's Assistant

Johnnie Schofield

Maurice's Taxi Driver

John Shirley

Editor

Yvonne Caffin

Costume Design

George Stretton

Director of Photography

Roger Vadim

Screenplay

Basil Keys

Assistant Director

John Wooldridge

Music

Marc Allégret

Director

Hugh Mills

Screenplay

Harold Huth

Producer

J. Elder Wills

Art Direction

Gordon K. McCallum

Sound Mixer

Arthur Ridout

Sound Editor

John Dennis

Sound

Norman Spencer

Associate Producer

Elizabeth Myers

Novel