Karlheinz Böhm

Mark Lewis

Anna Massey

Helen Stephens

Moira Shearer

Vivian

Maxine Audley

Mrs. Stephens

Brenda Bruce

Dora

Miles Malleson

Elderly Gentleman Customer

Esmond Knight

Arthur Baden

Michael Goodliffe

Don Jarvis

Jack Watson

Chief Insp. Gregg

Shirley Anne Field

Pauline Shields

Pamela Green

Milly

John Barrard

Small Man (uncredited)

Robert Crewdson

Shop Assistant on Film Set (uncredited)

Nigel Davenport

Det. Sgt. Miller (uncredited)

Michael Powell

Mark's Father - A.N. Lewis (uncredited)

Susan Travers

Lorraine the Model (uncredited)

Martin Miller

Dr. Rosen

Keith Baxter

Det. Baxter (uncredited)

John Chappell

Clapper Boy (uncredited)

Roland Curram

Young Man in Sports Car (uncredited)

John Dunbar

Police Doctor (uncredited)

Maurice Durant

Publicity Chief (uncredited)

Paddi Edwards

Girl Electrician (uncredited)

Cornelia Frances

Girl in Sports Car Leaving Studio (uncredited)

Veronica Hurst

Miss Simpson - Jarvis' Secretary (uncredited)

M. Le Compte

Lover in Garden (uncredited)

Mme. Le Compte

Lover in Garden (uncredited)

Bartlett Mullins

Mr. Peters - News Agent Shop Owner (uncredited)

Pete Murray

Young Man Embracing Girl (uncredited)

Margaret Neale

Mark's Stepmother (uncredited)

Columba Powell

Mark as a Child (uncredited)

Guy Kingsley Poynter

P. Tate - Studio Cameraman (uncredited)

Frankie Reidy

Mark's Mother on Deathbed (uncredited)

Alan Rolfe

Store Detective (uncredited)

Frank Singuineau

Electrician #1 (uncredited)

Peggy Thorpe-Bates

Mrs. Partridge (uncredited)

Robert Vossler

Policeman (uncredited)

Brian Wallace

Tony - Downstairs Lodger in Lewis' House (uncredited)

Brian Worth

Assistant Director (uncredited)

Jack Carter

St John's Medic (uncredited)