- Marcello Mastroianni
- Curzio Malaparte
- Ken Marshall
- Jimmy Wren
- Alexandra King
- Deborah Wyatt
- Carlo Giuffrè
- Eduardo Mazzullo
- Yann Babilée
- Jean-Louis
- Jeanne Valérie
- Principessa a Capri
- Liliana Tari
- Maria Concetta
- Peppe Barra
- Sarto
- Cristina Donadio
- Amica di Anna
- Rosaria della Femmina
- Amante di Jimmy
- Jacques Sernas
- Gen Guillaume
- Claudia Cardinale
- Principessa Consuelo Caracciolo
- Burt Lancaster
- Gen. Mark Clark
- Concetta Barra
- (as Concetta Barra Grasso)
- Antonella Cioli
- Rosaria
- Giovanni Crosio
- Padre di Maria Concetta
- Tomas Arana
- U.S. Soldier
- Al Braun
- (uncredited)
- Bob Braun
- Bit Role
- Omero Capanna
- Man Waving Flag
- Richard E. Carr
- Pvt. Kaminski
- Marvin I. Cohen
- Veterinarian
- Gabriella Di Luzio
- Zelmira
- Marc Dyer
- (uncredited)
- Jack Flick
- (uncredited)
- Brad Nimmo
- (uncredited)
- Bruno Parisio
- Waiter
- Steve Reardon
- (uncredited)
- Gene Tootle
- (uncredited)
- Dan Waddle
- (uncredited)
- Anna Walter
- Mistress
