Elizabeth Lorimer

Mandy Miller

Evelyn Acheson

Phyllis Calvert

Henry Acheson

Eric Portman

Stephen Lorimer

Stanley Baker

Cassie

Dora Bryan

Detective Sgt. Taylor

Percy Herbert

Cook

Joan Hickson

Bert

Victor Maddern

Vera McNally

Joan Benham

Professor Topolski

Martin Miller

Peter McNally (uncredited)

Christopher Toyne

Ticket Collector

Alfie Bass

P.C. Jennings

Bruce Beeby

Mrs. Parsons

Molly Urquhart

Mrs. Groves

Grace Arnold

Howard Forbes (uncredited)

Peter Burton

Nurse

Estelle E. Richmond

Party Guest (uncredited)

Maggie Smith

Elizabeth's Friend (uncredited)

Carol White