Koutarou Nishiyama
西山宏太朗
Official Website | Profile | Twitter
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.
Works
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★ 7.1
Kiznaiver
TV · 2016
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★ 7.6
91 Days
TV · 2016
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★ 7.6
My Happy Marriage
TV · 2023
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★ 7.9
School Babysitters
TV · 2018
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★ 6.8
TOUGEN ANKI
TV · 2025
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★ 7.8
Clevatess Season 2
TV · 2026
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★ 6.9
RE-MAIN
TV · 2021
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★ 6.8
Sagrada Reset
TV · 2017
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★ 7.1
Skull-face Bookseller Honda-san
TV SHORT · 2018
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★ 7.7
The Heike Story
ONA · 2021
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★ 7.0
The Vampire Dies in No Time
TV · 2021
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★ 7.6
Dance Dance Danseur
TV · 2022
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★ 5.8
Convenience Store Boy Friends
TV · 2017
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★ 6.6
All Out!!
TV · 2016
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★ 7.8
My New Boss is Goofy
TV · 2023
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★ 5.6
BEM
TV · 2019
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★ 5.9
Dragon Goes House-Hunting
TV · 2021
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★ 6.7
91 Days: Shoal of Time
OVA · 2017
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★ 6.3
Cute High Earth Defense Club LOVE!
TV · 2015
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★ 7.7
School Babysitters OVA
OVA · 2018
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★ 6.1
The Highschool Life of a Fudanshi
TV SHORT · 2016
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★ 6.9
With You, Our Love Will Make It Through
TV · 2025
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★ 6.9
A3! Season Spring & Summer
TV · 2020
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★ 7.3
The Vampire Dies in No Time Season 2
TV · 2023
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★ 5.5
SENGOKU NIGHT BLOOD
TV · 2017
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★ 7.2
MAJOR 2nd
TV · 2018
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★ 6.9
MIX
TV · 2019
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Airing
Tougen Anki: Nikko Kegon Falls Arc
TV · 2026
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★ 7.1
A3! Season Autumn & Winter
TV · 2020
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★ 6.6
Cute High Earth Defense Club LOVE! LOVE!
TV · 2016
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★ 7.4
MAJOR SECOND Season 2
TV · 2020
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★ 6.0
TSUKIPRO THE ANIMATION
TV · 2017
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★ 6.2
B-PROJECT-Zeccho＊Emotion-
TV · 2019
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★ 5.6
Tantei Team KZ Jiken Note
TV SHORT · 2015
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★ 6.5
Everyday Host
TV SHORT · 2025
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★ 5.9
Working Buddies!
TV SHORT · 2018
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★ 5.6
MUTEKING THE Dancing HERO
TV · 2021
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★ 6.9
MIX MEISEI STORY Season2
TV · 2023
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★ 6.4
Cute High Earth Defense Club LOVE! LOVE! LOVE!
OVA · 2017
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★ 5.8
Zoids Wild
TV · 2018
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★ 5.7
B-PROJECT Passion*Love Call
TV · 2023
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★ 7.1
Ensemble Stars!! Reminiscences Selection ELEMENT
ONA · 2023
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★ 6.3
TSUKIPRO THE ANIMATION 2
TV · 2021
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★ 4.1
Karada Sagashi
ONA · 2017
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★ 5.9
Binan Koukou Chikyuu Bouei-bu ETERNAL LOVE!
MOVIE · 2025
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★ 6.4
Bang!Bang!Bang!
MUSIC
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★ 5.9
Egumi Legacy
TV SHORT · 2024
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★ 4.6
MAZICA PARTY
TV · 2021
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Kanagawa Elves
TV SHORT · 2026
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★ 4.0
I'm From Japan
TV SHORT · 2019
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★ 5.6
TOUGEN ANKI Mini Anime
ONA
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★ 4.2
GET UP! GET LIVE! #Geragera
TV SHORT · 2020
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Akazukin, Tabi no Tochuu de Shitai to Deau.
TV
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★ 5.6
NEVER LOSE, MY RULE
MUSIC
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★ 4.8
MUZIK TIGER In the Forest
TV SHORT · 2025
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MUZIK TIGER In the Forest 2
TV SHORT · 2025
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Host ni Iroiro Kiitemita
ONA
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ROLY POLY PEOPLES
ONA · 2022