Frank Sinatra
Capt./Maj. Bennett Marco
Laurence Harvey
Raymond Shaw
Angela Lansbury
Mrs. Iselin
Janet Leigh
Eugenie Rose Chaney
James Gregory
Sen. John Yerkes Iselin
Leslie Parrish
Jocelyn Jordan
John McGiver
Sen. Thomas Jordan
James Edwards
Cpl. Allen Melvin
Douglas Henderson
Col. Milt
Barry Kelley
Secretary of Defense
Lloyd Corrigan
Holborn Gaines
Madame Spivy
Female Berezovo
Bess Flowers
Gomel's Lady Counterpart (uncredited)
Leoda Richards
Woman at Press Confrence (uncredited)
Reggie Nalder
Gomel (uncredited)
Colin Kenny
Senator (uncredited)
Arthur Tovey
Second Reporter
Paul Frees
Narrator (voice)
Whit Bissell
Medical Officer
James Yagi
Chinese Officer (uncredited)
Tom Lowell
Pvt. Bobby Lembeck (uncredited)
Robert Riordan
Benjamin K. Arthur
Raoul Freeman
Reporter (uncredited)
Rudy Germane
Delegate (uncredited)
Herschel Graham
Delegate (uncredited)
Stuart Hall
Reporter (uncredited)