Koki Uchiyama

Kōki Uchiyama is known for playing Roxas and Ventus throughout the Kingdom Hearts series, as well as Toge Inumaki in Jujutsu Kaisen. His range spans major franchises across anime and video games.

Among his most prominent roles, Uchiyama voices Tomura Shigaraki in My Hero Academia and Meruem in Hunter x Hunter. Both reflect his standing as one of the most in-demand voice actors of his generation.

Uchiyama voices Melzargard, an alien general serving the Dark Matter Thieves during the Alien Conquerors arc, a monster capable of splitting into five separate bodies that each carry a distinct personality. The character is eventually cornered and killed in a joint battle against the S-Class heroes Metal Bat, Puri-Puri Prisoner, Atomic Samurai, and Bang.

Yes, Kōki Uchiyama won Best Male Rookie at the 5th Seiyu Awards. He later received a Best Voice Actor honor at the 2015 Tokyo Anime Award Festival.

Kōki Uchiyama was born in 1990 and has been active as a Japanese voice actor since 2003, which means he entered the profession as a young teenager. That early start gave him roughly two decades of experience by the time he voiced Melzargard in One Punch Man, one of many roles across a long career.