Rod Taylor
— Chuka
Ernest Borgnine
— Sgt. Otto Hahnsbach
John Mills
— Colonel Stuart Valois
Luciana Paluzzi
— Señora Veronica Kleitz
James Whitmore
— Lou Trent
Victoria Vetri
— Señorita Helena Chavez
Louis Hayward
— Major Benson
Joseph Sirola
— Jake Baldwin
Marco López
— Hanu
Michael Cole
— Spivey
Hugh Reilly
— Capt. Carrol
Barry O'Hara
— Slim
Gerald York
— Lt. Daly