Stray Dog – Akira Kurosawa (1949)
Tokyo Story – Yasujiro Ozu (1953)
Seven Samurai – Akira Kurosawa (1954)
Samurai II: Duel at Ichijoji Temple – Hiroshi Inagaki (1955)
Samurai III: Duel on Ganryu Island – Hiroshi Inagaki (1956)
The Lower Depths – Akira Kurosawa (1957)
Port of Honor – Sadatsugu Matsuda (1957)
Yagyu Secret Scrolls, Part I – Hiroshi Inagaki (1957)
Yagyu Secret Scrolls, Part II – Hiroshi Inagaki (1958)
The Three Treasures – Hiroshi Inagaki (1959)
The Human Condition II: The Road to Eternity – Masaki Kobayashi (1959)
Chuji the Gambler – Senkichi Taniguchi (1960)
Yojimbo – Akira Kurosawa (1961)
Pigs and Battleships – Shohei Imamura (1961)
An Autumn Afternoon – Yasujiro Ozu (1962)
Bushido: The Cruel Code of the Samurai – Tadashi Imai (1963)
Shinobi No Mono 3: Resurrection – Kazuo Mori (1963)
High and Low – Akira Kurosawa (1963)
Musashi Miyamoto 4: Duel at Ichijoji Temple – Tomu Uchida (1964)
Pale Flower – Masahiro Shinoda (1964)
Sword of the Beast – Hideo Gosha (1965)
Samurai Assassin – Kihachi Okamoto (1965)
Red Beard – Akira Kurosawa (1965)
Zatoichi's Cane Sword – Kimiyoshi Yasuda (1967)
Kill! – Kihachi Okamoto (1968)
Goyokin – Hideo Gosha (1969)
Hunter in the Dark – Hideo Gosha (1979)

(Key films outside the jidai-geki genre are listed in gray)

A prolific character actor with a massive resume, Tono is well remembered for his role as Gonji in Yojimbo. He also originated the lead role in the long-running jidai-geki TV series Mito Komon, in which he starred from 1969 to 1983 (although I haven't had the chance to see it).