威灵顿教授是一位从事高度机密性政府研究工作的科学家。他写信给唐宁街10号威胁说如果首相不同意他的要求，他就会在10日之内炸掉房子，这一举动受到了愚弄。当威灵顿消失之后，警报响起，很快整个伦敦陷入了对他的搜捕行动...
Barry Jones
Professor John Malcolm Francis Willingdon
André Morell
Superintendent G.W. Folland
Olive Sloane
Goldie Phillips
Sheila Manahan
Ann Willingdon
Hugh Cross
Stephen Lane
Joan Hickson
Mrs. Emily Georgina Peckett
Ronald Adam
Arthur Lytton, the Prime Minister
Marie Ney
Mrs. Willingdon
Joss Ackland
Station Policeman
Marianne Stone
Woman in Phone Box
John Stratton
Army Mechanic
George Spence
Man on Bus (uncredited)
