
Quick answer — Haruka Kudou voices Mamoru Itou in From the New World, Hagumi Hanamoto in Honey and Clover, Haruka Kaminogi in Noein: To Your Other Self and 2 more characters.
Haruka Kudou voices Mamoru Itou (From the New World), Hagumi Hanamoto (Honey and Clover), Haruka Kaminogi (Noein: To Your Other Self), Sayo Hikawa (BanG Dream!), Setsuna (Captain Earth).
Mamoru Itou is voiced in Japanese by Haruka Kudou.