
Quick answer — Yuuka Nanri voices Ritsuko Mukae in Kids on the Slope, Henrietta in Gunslinger Girl, Saori Chiba in Wandering Son and 16 more characters.
Yuuka Nanri voices Ritsuko Mukae (Kids on the Slope), Henrietta (Gunslinger Girl), Saori Chiba (Wandering Son), Mao Nome (Macross Zero), Sayuri Sawatari (The Place Promised in Our Early Days), Mayu Suzumoto (Corpse Party: Missing Footage), Karen Ichijou (School Rumble), Rin Sasaki (Yamada and the Seven Witches) and 11 more.
Ritsuko Mukae is voiced in Japanese by Yuuka Nanri.