
Quick answer — Tadashi Nakamura voices Hosokawa in Wolf Children, Ozzy Smith in Space Brothers, Mansaku Jinnouchi in Summer Wars and 1 more characters.
Tadashi Nakamura voices Hosokawa (Wolf Children), Ozzy Smith (Space Brothers), Mansaku Jinnouchi (Summer Wars), Koumei Shokatsuryou (Giant Robo the Animation: The Day the Earth Stood Still).
Hosokawa is voiced in Japanese by Tadashi Nakamura.