The Black Windmill

A British agent's son is kidnapped and held for a ransom of diamonds. The agent finds out that he can't even count on the people he thought were on his side to help him, so he decides to track down the kidnappers himself.

• 
  Michael Caine

  Maj. John Tarrant
• 
  Donald Pleasence

  Cedric Harper
• 
  Delphine Seyrig

  Ceil Burrows
• 
  Clive Revill

  Alf Chestermann
• 
  John Vernon

  McKee
• 
  Joss Ackland

  Chief Supt. Wray
• 
  Janet Suzman

  Alex Tarrant
• 
  Catherine Schell

  Lady Melissa Julyan
• 
  Joseph O'Conor

  Sir Edward Julyan
• 
  Denis Quilley

  Bateson