• 
  Mikheil Kalatozishvili

  regizor

• 
  Ennio De Concini

  scenarist

• 
  Sean Connery

  Roald Amundsen
• 
  Claudia Cardinale

  Valeria
• 
  Boris Khmelnitsky

  Viglieri
• 
  Hardy Kruger

  Aviator Lundborg
• 
  Peter Finch

  Gen. Umberto Nobile
• 
  Massimo Girotti

  Romagna

• 
  Luigi Vannucchi

  Capt. Zappi
• 
  Mario Adorf

  Biagi, Radio Operator
• 
  Eduard Martsevich

  Finn Malmgren
• 
  Grigori Gaj

  Samoilovich
• 
  Nikita Mikhalkov

  Chuknovsky
• 
  Yuri Vizbor

  Behounek
• 
  Yuri Solomin

  Troiani

• 
  Hardy Krüger

  Aviator Lundborg
• 
  Donatas Banionis

  Mariano
• 
  Ted Rusoff

  Snowblind Crewman