Gregory Peck

as Capt. Josiah "Joe" Newman, MD

Tony Curtis

as Cpl. Jackson "Jake" Leibowitz

Angie Dickinson

as Lt. Francie Corum

Eddie Albert

as Col. Norval Algate Bliss

James Gregory

as Col. Edgar Pyser

Bethel Leslie

as Mrs. Helene Winston

Robert Duvall

as Capt. Paul Cabot Winston

Jane Withers

as Lt. Grace Blodgett