Yoshimasa Hosoya (細谷佳正; born February 10, 1982, in Onomichi, Hiroshima, Japan) is a prominent Japanese voice actor and singer, celebrated for his dynamic vocal range in both dramatic and youthful roles. He’s best known for voicing Reiner Braun (Attack on Titan), Fumikage Tokoyami (My Hero Academia), Junpei Hyūga (Kuroko’s Basketball), Sosuke Yamazaki (Free! – Eternal Summer), and many more across popular anime and games. A two‑time Seiyu Award winner (Supporting Actor, 2014 & 2016), Hosoya took a brief hiatus in 2017 for throat treatment but returned to continue his prolific career. As of March 2025, he recently announced his marriage via X/Twitter .