Frank Sinatra as Colonel Joseph L. Ryan

Trevor Howard as Major Eric Fincham

Raffaella Carrà as Gabriella

Brad Dexter as Sergeant Bostick

Sergio Fantoni as Captain Oriani

John Leyton as Lt. Orde

Edward Mulhare as Captain Costanzo

Wolfgang Preiss as Major Von Klemment

James Brolin as Private Ames

John van Dreelen as Colonel Gortz

Adolfo Celi as Battaglia

Vito Scotti as Peppino, Italian Train Engineer

Richard Bakalyan as Corporal Giannini

Michael Goodliffe as Captain Stein

Michael St. Clair as Sergeant Major Dunbar

Ivan Triesault as Von Kleist

Ian Abercrombie as English POW

Jacques Stany as Gortz's Aide

Robert "Buzz" Henry as American POW

John Daheim as American POW

James B. Sikking as American POW

William Berger as

Arthur Brauss as

Horst Ebersberg as

Donald F. Glut as

Paul Müller as

Michael Romanoff as

Rudy Germane as Controller (uncredited)