1988 – 2019, died before 9 January 2020)[a] was a Japanese anime director who directed the Fate/stay night TV series and the Fate/stay night: Unlimited Blade Works film.
Yamaguchi directed several anime series, including Angel Links (1999), I My Me!
Strawberry Eggs (2001), Yami to Bōshi to Hon no Tabibito (2003), AM Driver (2004–2005), and Tōka Gettan (2007).
[1] He directed episodes of Divergence Eve, GeGeGe no Kitarō, Hajime no Ippo, Outlaw Star, Suite and Smile PreCure!, and The King of Braves GaoGaiGar, and its sequel Final.
[1][3] Yamaguchi died of undisclosed causes sometime before 9 January 2020, when his death was announced by a subsequently-removed tweet by Fate/stay night company Studio Deen.