
Quick answer — Kotomi Yamakawa voices Hiromi Masuoka in Beck: Mongolian Chop Squad, Nakayama in Paradise Kiss, Misato Segawa in SHIROBAKO the Movie and 6 more characters.
Kotomi Yamakawa voices Hiromi Masuoka (Beck: Mongolian Chop Squad), Nakayama (Paradise Kiss), Misato Segawa (SHIROBAKO the Movie), Itou (Little Busters!), Cattleya Yvette La Baume Le Blanc de La Fontaine (The Familiar of Zero: Knight of the Twin Moons), Yubelluna (High School DxD), Ako Izumi (Negima!? Magister Negi Magi), Yumi (Dream Eater Merry) and 1 more.
Hiromi Masuoka is voiced in Japanese by Kotomi Yamakawa.