Keaton Yamada, born Shunji Yamada in Hobetsu, Hokkaidō on October 25, 1945, is a retired seiyuu. He switched from going by his real name, Shunji Yamada, to going by Keaton Yamada in the 1980s and continued to act under that name until his retirement in March of 2021.
He was represented by Remax at the time of his retirement.
His roles were mostly by the lines of The Lancer, the Aloof Big Brother or the Big Brother Mentor.
- The Deadpan Snarking, Lemony Narrator in Chibi Maruko-chan, both the anime and live-action series. He also makes a cameo as himself in one episode in the original anime series. Replaced by Kyouya Kimura after his retirement.
- Hayato Jin from Getter Robo, Super Robot Wars Alpha series, Super Robot Wars Impact, Super Robot Wars MX and Super Robot Wars Z. Replaced by Naoya Uchida.
- Albert Heinrich/004 in the 1979 version of Cyborg 009, Cyborg 009 The Movie: Legend of the Super Galaxy and the 1993 Sega CD game.
- Jamaican in Mobile Suit Zeta Gundam
- The narrator in Master Keaton
- Leumnades Kaza in Saint Seiya
- Tochiro in Captain Harlock
- Alain de Soissons in The Rose of Versailles.
- Jyuuzou Naniwa in Combattler V, Super Robot Wars Alpha series and Super Robot Wars Impact
- Hanpei Hattori in Kikaider
- Alex in Legend of the Galactic Heroes
- Gen Sakon in the original Gaiking Anime