Richard Hearne
— Mr. Pastry
William Hartnell
— Bert
Austin Trevor
— Sir Hervey Shaw
Joan Marion
— Angela Shaw
Robert Moreton
— Jevons
Ralph Truman
— Inspector Bridger
Ronald Adam
— Psychiatrist
Junia Crawford
— Diana Little
Tony Quinn
— Cracknell
Sylvia Bidmead
— Swissair Girl
Brian Harrington
— Police Doctor
Yvonne Hearne
— Matron
William Mervyn
— Roberts (MI5)
Cyril Renison
— Plain Clothes Officer
Neil Wilson
— Milligan
John Stuart
— Doctor