Richard Hearne

as Mr. Pastry

William Hartnell

as Bert

Austin Trevor

as Sir Hervey Shaw

Joan Marion

as Angela Shaw

Robert Moreton

as Jevons

Ralph Truman

as Inspector Bridger

Ronald Adam

as Psychiatrist

Junia Crawford

as Diana Little

Tony Quinn

as Cracknell

Sylvia Bidmead

as Swissair Girl

Brian Harrington

as Police Doctor

Yvonne Hearne

as Matron

William Mervyn

as Roberts (MI5)

Cyril Renison

as Plain Clothes Officer

Neil Wilson

as Milligan

John Stuart

as Doctor