
Seiji Miyaguchi (宮口 精二 Miyaguchi Seiji, November 15, 1913–April 12, 1985) was a Japanese actor who appeared in such films as Akira Kurosawa's Seven Samurai (as Kyuzo, the master swordsman) despite the actor's confession to have never handled a sword before the role, Ikiru as a yakuza boss from "restaurant row," and Masaki Kobayashi's Kwaidan. He died of lung cancer.
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Seven Samurai
1954 · as Kyuzo

Ikiru
1952 · as Yakuza Boss

Throne of Blood
1957 · as Phantom samurai

Early Summer
1951 · as Nishiwaki

The Human Condition I: No Greater Love
1959 · as Kyôritsu Ô

Kwaidan
1965 · as Old Man (segment "In a Cup of Tea")

The Bad Sleep Well
1960 · as Public Prosecutor Okakura

The Challenge
1982 · as Old Man

Lake of Illusions
1982 · as Yoshikane Nagao

White Snake Enchantment
1983 · as Jikan

Japan's Longest Day
1967 · as Foreign Minister Shigenori Togo

The Ballad of Narayama
1958 · as Matayan

Admiral Yamamoto
1968 · as Ito

Tokyo Twilight
1957 · as Policeman

Early Spring
1956 · as Yuzo Miura

The Last Embrace
1953 · as Gangster

Warrior of the Wind
1964

Farewell to the Ark
1984 · as Old man