• 
  Bud Spencer

  Carabiniere
• 
  Rock Hudson

  Lt. Frederick Henry
• 
  Elaine Stritch

  Helen Ferguson
• 
  Tiberio Mitri

  Café's other customer
• 
  Peter Illing

  Milan Hotel Clerk
• 
  Vittorio De Sica

  Major Alessandro Rinaldi
• 
  Leopoldo Trieste

  Passini
• 
  Jennifer Jones (I)

  Catherine Barkley

• 
  Peter Meersman

  Major Accuser
• 
  Oskar Homolka

  Dr. Emerich
• 
  Alberto Sordi

  Father Galli
• 
  Joan Shawlee

  Blond Nurse
• 
  Antonio La Raina

  Delivery Room Anaesthetist
• 
  Memmo Carotenuto

  Nino, the doorkeeper
• 
  Franco Interlenghi

  Aymo

• 
  Mercedes McCambridge

  Miss Van Campen
• 
  Giacomo Rossi-Stuart

  Carabiniere
• 
  Victor Francen

  Colonel Valentini
• 
  Kurt Kasznar

  Bonello
• 
  Umberto Spadaro

  Barber
• 
  Sam Levene

  Swiss Sergeant