
Quick answer — Keiko Watanabe voices Narita Taishin in Umamusume: Pretty Derby Season 2, Siena in Sentenced to Be a Hero, Anna in The Faraway Paladin and 2 more characters.
Keiko Watanabe voices Narita Taishin (Umamusume: Pretty Derby Season 2), Siena (Sentenced to Be a Hero), Anna (The Faraway Paladin), Erica (Chillin’ in My 30s after Getting Fired from the Demon King’s Army), Maho Kogomori (Chidori RSC).
Narita Taishin is voiced in Japanese by Keiko Watanabe.