Koutaro Nishiyama
- Compleanno:
- 10/11/1991
- Luogo di nascita:
- Kanagawa, Japan:
 | 劇場版ハイキュー!! ゴミ捨て場の決戦 (2024) Kazuhito Narita (voice) |
 | IDOLiSH7 7th Anniversary Event "ONLY ONCE, ONLY 7TH" (2023) Minami Natsume |
 | A3! SECOND Blooming FESTIVAL (2019) |
 | 特別版 Free! -Take Your Marks- (2017) Tooru Iwashimizu / David (voice) |
 | 美男高校地球防衛部LOVE! LOVE! LOVE! (2017) Atsushi Kinugawa |
 | ハイキュー!! 勝者と敗者 (2015) Kazuhito Narita (voice) |
 | ハイキュー!! 終わりと始まり (2015) Kazuhito Narita (voice) |