Marlon Brando
Major Lloyd Gruver
Patricia Owens
Eileen Webster
James Garner
Capt. Mike Bailey
Martha Scott
Mrs. Webster
Miiko Taka
Hana-ogi
Miyoshi Umeki
Katsumi
Red Buttons
Joe Kelly
Kent Smith
Gen. Webster
Douglass Watson
Col. Craford
Reiko Kuba
Fumiko-san
Soo Yong
Terukosan
Ricardo Montalban
Nakamura
Dennis Hopper
MP in Kelly's House / MP at Tokyo Airport (voice) (uncredited)