• 
  Jason Robards

  Andrei Sakharov
• 
  Tom Wilkinson
• 
  Ron Donachie
• 
  Jim Norton

  Roy Medvedev
• 
  Bernard Kay

  Prosecutor
• 
  Norman Rodway

  Psychiatrist
• 
  Tenniel Evans

  Dean Fedorenko
• 
  Jack May

  Yelena Bonner (Sakharova)

• 
  Anna Massey

  Klavdia
• 
  Michael Bryant

  Syshchikov
• 
  John Forgeham
• 
  Valentine Pelka

  Efrem Sakharov
• 
  Paola Dionisotti

  Patient's Wife
• 
  Frank Finlay

  Kravtsov
• 
  Paul Freeman

  Pavel Leontiev

• 
  Glenda Jackson

  Yelena Bonner (Sakharova)
• 
  Elizabeth Spriggs

  Nobel Presenter
• 
  Anton Lesser

  Valery Chalidze
• 
  Lee Montague

  Slavsky
• 
  Nicol Williamson

  Malyarov
• 
  Alan David
• 
  Ralph Nossek
• 
  Derek Lyons

  Russian Guard
• 
  John Golightly