Quick answer — Sumi Mutou voices Kei Amemiya in Jin-Roh: The Wolf Brigade, Mikako Nagamine in Voices of a Distant Star, Saho in MUSHI-SHI The Next Passage and 2 more characters.
Sumi Mutou voices Kei Amemiya (Jin-Roh: The Wolf Brigade), Mikako Nagamine (Voices of a Distant Star), Saho (MUSHI-SHI The Next Passage), Chisa Yomoda (Serial Experiments Lain), Zashiki-warashi (xxxHOLiC).
Kei Amemiya is voiced in Japanese by Sumi Mutou.
