Margaret Rutherford

Grand Duchess Gloriana XIII

Ron Moody

Prime Minister Rupert Mountjoy

Bernard Cribbins

Vincent Mountjoy

David Kossoff

Professor Kokintz

Terry-Thomas

Maurice Spender

June Ritchie

Cynthia

John Le Mesurier

British Delegate

John Phillips

Bracewell - U.S. Delegate

Eric Barker

M.I.5. Man