• 
  Arthur Hill

  Cranmer Guest
• 
  Christopher Lee

  Sir Felix Raybourne
• 
  Peter Gawthorne

  Sir Graham Forbes
• 
  Ronald Leigh-Hunt

  Inspector Ross
• 
  Robert Urquhart

  Slater
• 
  Patricia Dainton

  Steve Temple
• 
  Grey Blake

  Storey
• 
  Andreas Malandrinos

• 
  Ben Williams

  Reddy Carson
• 
  Michael Mulcaster
• 
  Valentine Dyall

  Superintendant Bradley

• 
  Geoffrey Faithfull

  imagine