• 
  Trevor Adams

  Benny
• 
  Keith Barron

  Charles Nesbitt
• 
  Bridget Brice

  Betty, Cowley's secretary
• 
  Lewis Collins

  Bodie
• 
  Donald Douglas

  Eric Sutton
• 
  Christopher Ellison

  Biggs, CI5 Agent
• 
  Penny Irving

  Pam
• 
  Gordon Jackson

  George Cowley

• 
  Angus MacKay

  Gerald Harvey
• 
  Gloria Maley

  Pretty Nurse (as Gloria Walker)
• 
  Peter Penry-Jones

  Cummings
• 
  Martin Shaw

  Doyle
• 
  Di Trevis

  Susan Fenton
• 
  Donald MacIver

  Hoskins
• 
  Melanie Peck

  Barmaid