Marlon Brando as Major Lloyd Gruver

Patricia Owens as Eileen Webster

James Garner as Capt. Mike Bailey

Martha Scott as Mrs. Webster

Miiko Taka as Hana-ogi

Miyoshi Umeki as Katsumi

Red Buttons as Joe Kelly

Kent Smith as Gen. Webster

Douglass Watson as Col. Craford

Reiko Kuba as Fumiko-san

Soo Yong as Terukosan

Ricardo Montalban as Nakamura

Dennis Hopper as MP in Kelly's House / MP at Tokyo Airport (voice) (uncredited)

Peter Brown as Second Military Police (voice) (uncredited)

Kenner G. Kemp as General at Tokyo Airport (uncredited)

William Meader as General at Tokyo Airport (uncredited)

Ralph Moratz as Soldier in Washroom (uncredited)

Rollin Moriyama as Reporter (uncredited)

Yvonne Peattie as Lady Vice-Consul (uncredited)

Phil Rhodes as Doctor (uncredited)

Bill Saito as Photographer (uncredited)

James Stacy as Reporter (uncredited)

Audrey Swanson as Officer's Wife (uncredited)

Harlan Warde as Consul (uncredited)

William Wellman Jr. as Stars and Stripes Reporter (uncredited)