
Quick answer — Mami Koyama voices Eva Heinemann in Monster, Kei in Akira, Fukiko Ichinomiya in Dear Brother and 39 more characters.










































Mami Koyama voices Eva Heinemann (Monster), Kei (Akira), Fukiko Ichinomiya (Dear Brother), Oiwa Tamiya (Ayakashi: Samurai Horror Tales), Semmerling (Riding Bean), Himiko Se (Vampire Princess Miyu), Jessica Edwards (Legend of the Galactic Heroes), Sobo (The Promised Neverland) and 34 more.
Eva Heinemann is voiced in Japanese by Mami Koyama.