• 
  William Sylvester

  Gordon Lonsdale
• 
  Bernard Lee

  Henry Houghton
• 
  George Pravda
• 
  Howard Pays

  P.O. Garton
• 
  Bryan Pringle

  Surveillance man
• 
  David Kossoff

  Peter Kroger
• 
  Derek Francis

  Chief Supt. Croft
• 
  Cyril Chamberlain

  Anderson

• 
  Newton Blick

  P.O. Meadows
• 
  Basil Dignam

  2nd Member at Lord's
• 
  Philip Latham

  Captain Ray
• 
  Margaret Tyzack

  Elizabeth Gee
• 
  Richard Marner

  Colonel Monat
• 
  Paul Eddington

  Johnnie
• 
  Thorley Walters

  Cmdr. Winters

• 
  Justine Lord

  Christina

• 
  Thelma Connell

  montaj
• 
  Frank Launder

  scriitor
• 
  Peter Barnes

  scriitor