
Quick answer — Shuuhei Matsuda voices Kuugo Sakamata in My Hero Academia Season 5 OVA, Keiji in Attack on Titan Season 2.
Shuuhei Matsuda voices Kuugo Sakamata (My Hero Academia Season 5 OVA), Keiji (Attack on Titan Season 2).
Kuugo Sakamata is voiced in Japanese by Shuuhei Matsuda.