Koutaro Nishiyama
- Acting
- October 11, 1991 · Kanagawa, Japan
Known for
Filmography
- With You, Our Love Will Make It Through · Yukihiro Aida (Voice)
- Tougen Anki · Jin Kougasaki (Voice)
- Muzik Tiger in the Forest · Taffee (Voice)
- Egumi Legacy · Uninvited Guest (Voice)
- 声優に丸なげ！ · Self
- HAIKYU!! The Dumpster Battle · Kazuhito Narita (Voice)
- My New Boss Is Goofy · Kentaro Momose (Voice)
- My Happy Marriage · Koji Tatsuishi (Voice)
- IDOLiSH7 7th Anniversary Event "ONLY ONCE, ONLY 7TH" · Minami Natsume
- Ensemble Stars!! Reminiscence Selection: Element · Kanata Shinkai (Voice)
- The Tale of Outcasts · Shura (Voice)
- Dance Dance Danseur · Yamato Takura (Voice)
- Aoashi · Junnosuke Nakano (Voice)
- OHA! Yo~idon
- The Heike Story · Emperor Takakura (Voice)
- She Professed Herself Pupil of the Wise Man · Aizenfald (Voice)
- The Vampire Dies in No Time · Sagyou (Voice)
- Muteking the Dancing Hero · Winter (Voice)
- RE-MAIN · Eitaro Oka (Voice)
- To Your Eternity · Rean's Fiancé (Voice)
- Dragon Goes House-Hunting · Archer (Voice)
- Sakura Kakumei ~Hana Saku Otome-tachi~
- Get Up! Get Live! #Geragera · Kaede Higashizawa (Voice)
- SING "YESTERDAY" FOR ME · Amamiya (Voice)
- A3! · Tsuzuru Minagi (Voice)
- BEM · Roddy Walker (Voice)
- Mix: Meisei Story · Ryo Akai (Voice)
- Demon Slayer: Kimetsu no Yaiba · Voice
- A3! SECOND Blooming FESTIVAL
- Skull-face Bookseller Honda-san
- Mr. TONEGAWA Middle Management Blues · Toshimasa Kawasaki (Voice)
- Major 2nd · Hikaru Satō (Voice)
- School Babysitters · Kashima Ryuuichi (Voice)
- Free!: Take Your Marks · Tooru Iwashimizu / David (Voice)
- The Ancient Magus' Bride · Isaac Farrar (Voice)
- Cute High Earth Defense Club LOVE! LOVE! LOVE! · Atsushi Kinugawa, Theme Song Performance
- ALL OUT!! · Youto Keta (Voice)
- 91 Days · Frate (Voice)
- Kiznaiver · Yoshiharu Hisomu (Voice)
- Re:ZERO -Starting Life in Another World- · Kiritaka Muse (Voice)
- Haruchika – Haruta & Chika · Kouji Iwasaki (Voice)
- Haikyu!! the Movie: The Winner and the Loser · Kazuhito Narita (Voice)
- Haikyu!! the Movie: The End and the Beginning · Kazuhito Narita (Voice)
- Cute High Earth Defense Club LOVE! · kinugawa atsushi (Voice)
- Your Lie in April · Soccer Club Member (Voice)
- Blue Spring Ride · Middle school boy (Voice)
- Haikyu!! · Kazuhito Narita (Voice), Kawashita (Voice)
- Noragami · Suzuha (Voice)
- Tokyo Encounter
- The Legend of Bureaucrat Matsurika · Shisei Hou (Voice)