Yamamoto also voiced the titular characters in Tensai Bakabon and Ganbare Gonbe series, and Sunakake Baba in several Gegege no Kitarō television anime and films starting in 1971, until in the 2007 Gegege no Kitarō series, and the 2008 Gegege no Kitarō: Nippon Bakuretsu!!
The official website of Aoni Production announced on Monday that voice actress Keiko Yamamoto died on April 18 due to sepsis.
Yamamoto also stepped down from voicing the character of Hanako Hanazawa in the similarly long-running children’s anime Sazae-san in November 2023.
Yamamoto has voiced the character of Shōta Yamada in the long-running Chibi Maruko-chan anime since January 1990.