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Personal Info
Known For
Acting
Birthday
October 11, 1991
Place of Birth
Kanagawa, Japan
Also Known As
- Kotaro Nishiyama
- 西山 宏太朗
- Kōtarō Nishiyama
- Koutarou Nishiyama
Koutaro Nishiyama
1.1 Popularity
Known For
9.2
Yukihiro Aida (voice)
With You, Our Love Will Make It Through
2025
8.1
Jin Kougasaki (voice)
Tougen Anki
2025
0.0
Taffee (voice)
Muzik Tiger in the Forest
2025
5.0
Uninvited Guest (voice)
Egumi Legacy
2024
0.0
声優に丸なげ！
2024
7.7
Kazuhito Narita (voice)
HAIKYU!! The Dumpster Battle
2024
6.2
Kentaro Momose (voice)
My New Boss Is Goofy
2023
8.3
Koji Tatsuishi (voice)
My Happy Marriage
2023
4.0
Minami Natsume
IDOLiSH7 7th Anniversary Event "ONLY ONCE, ONLY 7TH"
2023
7.7
Ensemble Stars!!: Tsuioku Selection - Element
2023
Credits
With You, Our Love Will Make It Through
as Yukihiro Aida (voice)
2025
9.2
Tougen Anki
as Jin Kougasaki (voice)
2025
8.1
Muzik Tiger in the Forest
as Taffee (voice)
2025
0.0
Egumi Legacy
as Uninvited Guest (voice)
2024
5.0
声優に丸なげ！
2024
0.0
HAIKYU!! The Dumpster Battle
as Kazuhito Narita (voice)
2024
7.7
My New Boss Is Goofy
as Kentaro Momose (voice)
2023
6.2
My Happy Marriage
as Koji Tatsuishi (voice)
2023
8.3
IDOLiSH7 7th Anniversary Event "ONLY ONCE, ONLY 7TH"
as Minami Natsume
2023
4.0
Ensemble Stars!!: Tsuioku Selection - Element
2023
7.7
The Tale of Outcasts
as Shura (voice)
2023
6.1
Aoashi
as Junnosuke Nakano (voice)
2022
7.5
Dance Dance Danseur
as Yamato Takura (voice)
2022
7.3
OHA! Yo~idon
2022
0.0
The Heike Story
as Emperor Takakura (voice)
2022
7.3
She Professed Herself Pupil of the Wise Man
as Aizenfald (voice)
2022
6.5
The Vampire Dies in No Time
as Sagyou (voice)
2021
7.5
Muteking the Dancing Hero
as Winter (voice)
2021
4.0
RE-MAIN
as Eitaro Oka (voice)
2021
6.8
To Your Eternity
as Rean's Fiancé (voice)
2021
8.2
Dragon Goes House-Hunting
as Archer (voice)
2021
6.9
Sakura Kakumei ~Hana Saku Otome-tachi~
2020
0.0
Get Up! Get Live! #Geragera
as Kaede Higashizawa (voice)
2020
7.0
SING "YESTERDAY" FOR ME
as Amamiya (voice)
2020
8.0
A3!
as Tsuzuru Minagi (Voice)
2020
6.4
BEM
as Roddy Walker (voice)
2019
6.4
Demon Slayer: Kimetsu no Yaiba
as (voice)
2019
8.6
Mix: Meisei Story
as Ryo Akai (voice)
2019
6.7
A3! SECOND Blooming FESTIVAL
2019
0.0
Skull-face Bookseller Honda-san
2018
6.5
Mr. TONEGAWA Middle Management Blues
as Toshimasa Kawasaki (voice)
2018
6.9
Major 2nd
as Hikaru Satō (voice)
2018
7.9
School Babysitters
as Kashima Ryuuichi (voice)
2018
7.9
Free!: Take Your Marks
as Tooru Iwashimizu / David (voice)
2017
6.8
The Ancient Magus' Bride
as Isaac Farrar (voice)
2017
8.4
Cute High Earth Defense Club LOVE! LOVE! LOVE!
as Atsushi Kinugawa
2017
8.2
ALL OUT!!
as Youto Keta (voice)
2016
6.9
91 Days
as Frate (voice)
2016
7.6
Kiznaiver
as Yoshiharu Hisomu (voice)
2016
7.7
Re:ZERO -Starting Life in Another World-
as Kiritaka Muse (voice)
2016
7.8
Haruchika – Haruta & Chika
as Kouji Iwasaki (voice)
2016
6.7
Haikyu!! the Movie: The Winner and the Loser
as Kazuhito Narita (voice)
2015
8.0
Haikyu!! the Movie: The End and the Beginning
as Kazuhito Narita (voice)
2015
8.4
Your Lie in April
as Soccer Club Member (voice)
2014
8.6
Blue Spring Ride
as Middle school boy (voice)
2014
8.5
Haikyu!!
as Kazuhito Narita (voice)
2014
8.6
Haikyu!!
as Kawashita (voice)
2014
8.6
Noragami
as Suzuha (voice)
2014
8.2
Tokyo Encounter
2010
0.0