Seven Days to Noon

When Professor Willingdon becomes wary of the nuclear weapons he is helping build, he steals a warhead and threatens to detonate it in London in seven days unless the government begins nuclear disarmament. As Willingdon goes into hiding, Detective Folland of Scotland Yard sets out to find him. Willingdon's daughter Ann also joins the cause, hoping she can talk sense into her father before he causes a catastrophe.

• 
  Mike Johnson
• 
  Roy Boulting
• 
  John Boulting
• 
  Shirley Barnes

• 
  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)