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.
Description above from the Wikipedia article Seiji Miyaguchi, licensed under CC-...
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Kwaidan
As Old Man (segment "In a Cup of Tea")
Aoi sanmyaku
As Mr. Okamoto
The Human Condition I: No Greater Love
As Kyôritsu Ô
The Bad Sleep Well
As Public Prosecutor Okakura
Youth After School
As Shinkichi Yamaguchi
Stakeout
As Yuji Shimooka, the police detective
Mother
As Doctor
Pale Flower
As Funada
Fumiko's Five Benefactors
As Detective (uncredited)
Sanshiro Sugata Part Two
As Kohei Tsuzaki
Japan's Longest Day
As Foreign Minister Shigenori Togo
Samurai Spy
As Jinnai-Kazutaka Horikawa
Melodies of a White Night
Early Summer
As Nishiwaki
The Naked Executive
As Heikichi Hamanaka
Jun'ai monogatari kusa no mi
Night Scandal
As Daizo Suzuki
Escape from Hell
As Usuke
Pomegranate Time
As Naokichi Kuwata
Black River
As Kin
Samurai from Nowhere
As Tatewaki Komuro
The Broken Commandment
As School master
Hajimete no Tabi
Mermaid Legend
As Tatsuo
Night Scandal in Japan
As Detective Tasaka
The Militarists
As Shinegori Togo
A Dangerous Hero
悪魔の顔
River of Forever
Gekkyū dorobō
A Secret Rendezvous
As Yuichiro
The Challenge
As Old Man
Ikiru
As Yakuza Boss
Throne of Blood
As Phantom samurai
Samurai of the Great Earth
Will-o'-the-Wisp
Farewell to the Ark
As Old man
The World's Most Beautiful Swindlers
As Detective (segment "Les Cinq Bienfaiteurs de ...") (uncredited)
Flowing
As Namie's Uncle
The Ballad of Narayama
As Matayan
White Snake Enchantment
As Jikan
The Inheritance
As Yoshida
To Love Again
Irohanihoheto
Night Butterflies
Raised in a Palace
As Tsukada
The Good Fairy
As Assistant editor
Farewell to Spring
As Akira's father
Deep River Melody
The Twilight Story
The Spell of the Hidden Gold
As Senjuro Takebe
Twin Sisters of Kyoto
As Takichiro Sada
The Last Embrace
As Gangster
Enraptured
Kiku and Isamu: Two Siblings Born in Japan
Punishment Room
Song of Farewell
As Masao Nomura
A House in the Quarter
As Sanzaemon Katagiri
Goodbye to Glory
As Hikocho
Warrior of the Wind
Antonio Gaudí
As Boada (voice)
Our Happiness Alone
Miyamoto Musashi
As Bamboo craftsman Kisuke
Miyamoto Musashi: Showdown at Hannyazaka Heights
As Bamboo craftsman Kisuke
Tora-san's Dear Old Home
As Shukichi
Akira Kurosawa: It Is Wonderful to Create: 'Seven Samurai'
As Self
The Underworld
Accomplice
Get 'em All
As Takahashi
Tokyo Omnibus
The Start of Life
As Tatsugoro Ishiguro
A Descendant of Urashima Taro
The Radish and the Carrot
The Fossil
As Sunami
Someday I'll Know
As Masao Shiroyama
The White Peaks of Mt. Fuji
As Shūhei Isomura
My Brother, My Love
As Ginsaku Kitagawa
Intentions of Murder
As Genji Miyata
The Most Valuable Wife
As Rintaro Nonomiya
The Enforcer
Tokyo Twilight
As Policeman
The Story of Pure Love
Untamed Woman
As Sotaro, Oshima's older brother
The Rickshaw Man
Fireworks Over the Sea
As Gunzo Ishiguro
That Guy and I
Seven Samurai
As Kyuzo
Tora-san's Lovesick
Lake of Illusions
As Yoshikane Nagao
Gulliver's Travels Beyond the Moon
As Dr. Gulliver (voice)
Admiral Yamamoto
As Ito
The Street Without Sun
As Okimi's father
Early Spring
As Yuzo Miura
Three-Fingered Detective
An Inlet of Muddy Water
Beauty of Life
The Dedicated Gunman
Ah Special Attack Corps
Special Crime Investigation Front
Shōgun
As Muraji