
Quick answer — Sayuri Hara voices Chiaki Oogaki in Laid-Back Camp, Rizumu Amamiya in Pretty Rhythm: Aurora Dream, Mio Honda in THE IDOLM@STER CINDERELLA GIRLS and 16 more characters.
Sayuri Hara voices Chiaki Oogaki (Laid-Back Camp), Rizumu Amamiya (Pretty Rhythm: Aurora Dream), Mio Honda (THE IDOLM@STER CINDERELLA GIRLS), Reimi Sugimoto (JoJo's Bizarre Adventure: Diamond is Unbreakable), Agatha (Secrets of the Silent Witch), Luna (KONOSUBA -God's blessing on this wonderful world!), Kyouko Mamiya (You and Me.), Mika (Love Live! School Idol Project) and 11 more.
Chiaki Oogaki is voiced in Japanese by Sayuri Hara.