Paddi Edwards

Girl Electrician (uncredited)

Nigel Davenport

Det. Sgt. Miller (uncredited)

Anna Massey

Helen Stephens

Brenda Bruce

Dora

Esmond Knight

Arthur Baden

Miles Malleson

Elderly Gentleman Customer

Jack Watson

Chief Insp. Gregg

Karlheinz Böhm

Mark Lewis

Moira Shearer

Vivian

Maxine Audley

Mrs. Stephens

Martin Miller

Dr. Rosen

Michael Goodliffe

Don Jarvis

Shirley Anne Field

Pauline Shields

Pamela Green

Milly

John Barrard

Small Man (uncredited)

Robert Crewdson

Shop Assistant on Film Set (uncredited)

Michael Powell

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

Susan Travers

Lorraine the Model (uncredited)

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)

Cornelia Frances

Girl in Sports Car Leaving Studio (uncredited)