This article is about a subject in the real world.
Information in this article is about real-life people, companies, and objects, and does not relate to the in-universe Sonic series.

Ken Yamaguchi (山口 健 Yamaguchi Ken?), real name Kiyoshige Yamaguchi (山口 清成 Yamaguchi Kiyoshige?), was a seiyū from Tokyo (Fukushima Prefecture originally). He was represented by OYS Produce.

Yamaguchi died on October 24, 2011, due to acute heart failure.


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Voice acting

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