
Quick answer — Hitomi Harada voices Nori in Hidamari Sketch x Hoshimittsu, Mizuki Himeji in Baka and Test - Summon the Beasts, Yaya in Unbreakable Machine-Doll and 20 more characters.
Hitomi Harada voices Nori (Hidamari Sketch x Hoshimittsu), Mizuki Himeji (Baka and Test - Summon the Beasts), Yaya (Unbreakable Machine-Doll), Asuka (Senran Kagura: Ninja Flash!), Erena Mochizuki (Girl Friend BETA), Kirika (Another), Airi Totoki (THE IDOLM@STER CINDERELLA GIRLS), Karlamine (High School DxD) and 15 more.
Nori is voiced in Japanese by Hitomi Harada.