Obsession

James Harcourt

Aitkin (butler)

Betty Cooper

Miss Stevens (receptionist)

Allan Jeayes

The Colonel, blustery club member

Ronald Adam

Talkative, balding club member

Roddy Hughes

Bespectacled third club member, from Whitehall

Olga Lindo

Mrs. Humphries

Stanley Baker

Policeman at Garage

Russell Waters

Detective at Garage