Barbara Shelley

Leonora Johnson / Leonora Brandt

Robert Ayres

Dr. Brian Marlowe

Kay Callard

Dorothy Marlowe

Ernest Milton

Edmund Brandt

Lily Kann

Anna

Jack May

Richard Johnson

Paddy Webster

Cathy

John Lee

Allan

Edward Harvey

Doorman

Martin Boddey

Cafferty

Selma Vaz Dias

Nurse

John H. Watson

Roberts

John Baker

Male Nurse (uncredited)

Selma Vaz Dias

Nurse (uncredited)

Jim Tyson

Barman (uncredited)

Frank Atkinson

Guard (uncredited)

Geoffrey Tyrrell

Caretaker (uncredited)