
Quick answer — Akiko Hasegawa voices Miki Hoshii in The Idol Master, Akari in Fantasista Doll, Rosetta Yuuki in Robotics;Notes and 1 more characters.
Akiko Hasegawa voices Miki Hoshii (The Idol Master), Akari (Fantasista Doll), Rosetta Yuuki (Robotics;Notes), Ruu Narita (Photo Kano).
Miki Hoshii is voiced in Japanese by Akiko Hasegawa.