Fred Zinnemann Director Pier Angeli Teresa Russo Actor John Ericson Philip Cass Actor Patricia Collinge Mrs. Clara Cass Actor Richard Bishop Mr. Cass Actor Peggy Ann Garner Susan Cass Actor Ralph Meeker Sgt. Dobbs Actor Bill Mauldin Grissom Actor Ave Ninchi Teresa's Mother Actor Edward Binns Sgt. Brown Actor Rod Steiger Frank Actor Aldo Silvani Professor Crocce Actor Tommy Lewis Walter Actor Franco Interlenghi Mario (uncredited) Actor Edith Atwater Mrs. Lawrence (uncredited) Actor Richard McNamara G.I. cook (uncredited) Actor Arthur M. Loew Jr. Producer