
Quick answer — Masashi Sugawara voices Jean Valjean in Les Misérables: Shoujo Cosette, Ray Lovelock in Macross 7, Ricardo Martinez in Hajime no Ippo: The Fighting! New Challenger and 9 more characters.
Masashi Sugawara voices Jean Valjean (Les Misérables: Shoujo Cosette), Ray Lovelock (Macross 7), Ricardo Martinez (Hajime no Ippo: The Fighting! New Challenger), Shimaoka (Detective Conan: Magician of the Silver Sky), George Joestar I (JoJo's Bizarre Adventure (TV)), Father Ozaki (Shiki), Andrew Graham (Mobile Fighter G Gundam), Charlie Chapman (MASTER Keaton) and 4 more.
Jean Valjean is voiced in Japanese by Masashi Sugawara.