Koutarou Nishiyama
西山宏太朗
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Koutaro Nishiyama is a Japanese voice actor and singer. He is currently affiliated with 81 Produce. In 2018, he won the Best New Actor Award at the 12th Seiyu Awards.
Koutaro Nishiyama is a Japanese voice actor and singer. He is currently affiliated with 81 Produce. In 2018, he won the Best New Actor Award at the 12th Seiyu Awards.
Noragami Aragoto
TV, 2015
Suzuha
Supporting
Haikyu!! 3rd Season
TV, 2016
Kazuhito Narita
Supporting
Haikyuu!!: To the Top 2nd Season
TV, 2020
Kazuhito Narita
Supporting
Kokoro Connect
TV, 2012
Danshi Seito
Background
Kiznaiver
TV, 2016
Yoshiharu Hisomu
Main
91 Days
TV, 2016
Frate Vanetti
Supporting
Free! - Eternal Summer
TV, 2014
Tooru Iwashimizu
Supporting
My Happy Marriage
TV, 2023
Kouji Tatsuishi
Supporting
School Babysitters
TV, 2018
Ryuuichi Kashima
Main
The Ancient Magus' Bride Season 2
TV, 2023
Isaac Farrar
Supporting
Kotaro Lives Alone
ONA, 2022
Tamamori
Supporting
Tougen Anki
TV, 2025
Jin Kougasaki
Main
Sagrada Reset
TV, 2017
Ryouji Yoshii
Supporting
Re-Main
TV, 2021
Eitarou Oka
Supporting
Skull-face Bookseller Honda-san
TV, 2018
Kendou
Supporting
Skull-face Bookseller Honda-san
TV, 2018
Baito-kun
Background
Isaac Farrar
Supporting
Mr. Villain's Day Off
TV, 2024
Soshikiin A
Background
Convenience Store Boy Friends
TV, 2017
Keiichi Miki
Supporting
Dance Dance Danseur
TV, 2022
Yamato Takura
Supporting
The Vampire dies in no time
TV, 2021
Sagyou
Supporting
The Heike Story
TV, 2021
Takakura
Supporting
Cute High Earth Defense Club LOVE!
TV, 2015
Atsushi Kinugawa
Main
Bem
TV, 2019
Roddy Walker
Supporting
The Highschool Life of a Fudanshi
TV, 2016
Daigo
Supporting
Clevatess Season 2
TV, 2026
Edison
Supporting
My New Boss Is Goofy
TV, 2023
Kentarou Momose
Main
Dragon's House-Hunting
TV, 2021
Yumitsukai
Supporting
Mechanical Arms
TV, 2024
Tani
Supporting
Frate Vanetti
Supporting
Ensemble Stars!
TV, 2019
Kanata Shinkai
Supporting
Gakuen Babysitters Special
SPECIAL, 2018
Ryuuichi Kashima
Main
Sengoku Night Blood
TV, 2017
Masatoyo Naitou
Supporting
Toshimasa Kawasaki
Supporting
Yukihiro Aida
Supporting
Hana-Kimi
TV, 2026
Wataru Nihonbashi
Supporting
Sagyou
Supporting
A3! Season Spring & Summer
TV, 2020
Tsuzuru Minagi
Main
Major 2nd (TV)
TV, 2018
Hikaru Satou
Main
Stand My Heroes: Piece of Truth
TV, 2019
Kyousuke Tsuzuki
Supporting
IDOLiSH7: Third Beat!
TV, 2021
Minami Natsume
Supporting
A3! Season Autumn & Winter
TV, 2020
Tsuzuru Minagi
Supporting
Major 2nd (TV) 2nd Season
TV, 2020
Hikaru Satou
Supporting
The Laughing Salesman
TV, 2017
Tomoyoshi Doraki
Supporting
Tsukipro The Animation
TV, 2017
Eichi Horimiya
Main
B-Project: Zecchou*Emotion
TV, 2019
Yuzuki Teramitsu
Main
Hana-Kimi Season 2
TV, 2026
Wataru Nihonbashi
Supporting
Atsushi Kinugawa
Main
Everyday Host
TV, 2025
Shin
Supporting
Working Buddies!
TV, 2018
Angolamori-senpai
Supporting
Mix: Meisei Story 2nd Season
TV, 2023
Ryou Akai
Supporting
Tsukipro The Animation 2nd Season
TV, 2021
Eichi Horimiya
Main
B-Project: Netsuretsu*Love Call
TV, 2023
Yuzuki Teramitsu
Main
Jewelpet Magical Change
TV, 2015
Sakutarou Kirara
Supporting
Binan Koukou Chikyuu Bouei-bu Eternal Love!
MOVIE, 2025
Atsushi Kinugawa
Main
Egumi Legacy
TV, 2024
Manekarezarukyaku
Supporting
Onimomomomo
ONA, 2025