- Gianni Garko
- Lt. Glenn Hoffmann
- Margaret Lee
- Helga Richter
- Klaus Kinski
- SS Col. Hans Mueller
- Aldo Canti
- Nick Amadori
- Sal Borgese
- Al Siracusa
- Luciano Rossi
- Johnny 'Chicken' White
- Samson Burke
- Sgt. Sam McCarthy
- Irio Fantini
- Gen. Friederich Gerbordstadt
- Antonio Anelli
- British Military Officer
- Omero Capanna
- Soldier
- William Conroy
- German Soldier
- Andrea Esterhazy
- American Officer
- Biagio Gambini
- Helga's Lover
- Rocco Lerro
- German Soldier
- Vincenzo Maggio
- German Soldier
- Emilio Messina
- American Soldier / German Soldier (uncredited)
- Roberto Messina
- German Soldier
- Mike Monty
- Capt. Nixon
- Luigi Scavran
- Francesco Braguglia
- Sergio Testori
- German Soldier
- Bruno Ukmar
- American Soldier
- Clemente Ukmar
- American Soldier
- Franco Ukmar
- American Soldier
- Giancarlo Ukmar
- German Soldier
- Giovanni Ukmar
- German Soldier
- Bill Vanders
- American General