
Quick answer — Masatomo Nakazawa voices Haruki Nakayama in given, Clear in DRAMAtical Murder, Kouhei Indou in The Summer Hikaru Died and 8 more characters.
Masatomo Nakazawa voices Haruki Nakayama (given), Clear (DRAMAtical Murder), Kouhei Indou (The Summer Hikaru Died), Wataru Kuon (BLUE LOCK), Kenji Futakuchi (Haikyuu!! the Movie: The Winner and the Loser), Eric (Princess Principal), Shuichiro Sawaki (WONDER EGG PRIORITY), Giichi Ichikawa (Twilight Out of Focus) and 3 more.
Haruki Nakayama is voiced in Japanese by Masatomo Nakazawa.