Karlheinz Böhm character Mark Lewis (as Carl Boehm)
Moira Shearer character Vivian
Anna Massey character Helen Stephens
Maxine Audley character Mrs. Stephens
Brenda Bruce character Dora
Miles Malleson character Elderly Gentleman Customer
Esmond Knight character Arthur Baden
Michael Goodliffe character Don Jarvis
Jack Watson character Chief Insp. Gregg
Shirley Anne Field character Pauline Shields (as Shirley Ann Field)
Pamela Green character Milly
John Barrard character Small Man (uncredited)
Robert Crewdson character Shop Assistant on Film Set (uncredited)
Nigel Davenport character Det. Sgt. Miller (uncredited)
Michael Powell character Mark's Father - A.N. Lewis (uncredited)
Susan Travers character Lorraine the Model (uncredited)
Martin Miller character Dr. Rosen
Keith Baxter character Det. Baxter (uncredited)
John Chappell character Clapper Boy (uncredited)
Roland Curram character Young Man in Sports Car (uncredited)
John Dunbar character Police Doctor (uncredited)
Maurice Durant character Publicity Chief (uncredited)
Paddi Edwards character Girl Electrician (uncredited)
Cornelia Frances character Girl in Sports Car Leaving Studio (uncredited)
Veronica Hurst character Miss Simpson - Jarvis' Secretary (uncredited)
M. Le Compte character Lover in Garden (uncredited)
Mme. Le Compte character Lover in Garden (uncredited)
Bartlett Mullins character Mr. Peters - News Agent Shop Owner (uncredited)
Pete Murray character Young Man Embracing Girl (uncredited)
Margaret Neale character Mark's Stepmother (uncredited)
Columba Powell character Mark as a Child (uncredited)
Guy Kingsley Poynter character P. Tate - Studio Cameraman (uncredited)
Frankie Reidy character Mark's Mother on Deathbed (uncredited)
Alan Rolfe character Store Detective (uncredited)
Frank Singuineau character Electrician #1 (uncredited)
Peggy Thorpe-Bates character Mrs. Partridge (uncredited)
Robert Vossler character Policeman (uncredited)
Brian Wallace character Tony - Downstairs Lodger in Lewis' House (uncredited)
Brian Worth character Assistant Director (uncredited)
