# Koutaro Nishiyama

Koutaro Nishiyama (西山 宏太朗, Nishiyama Kōtarō, born October 11, 1991) is a Japanese voice actor and singer from Kanagawa Prefecture, Japan. He is currently affiliated with 81 Produce. His major roles are Atsushi Kinugawa in Cute High Earth Defense Club Love!, Sakutaro Kirara in Jewelpet: Magical Change, Kazunori Uesugi in Tantei Team KZ Jiken Note, Yoshiharu Hisomu in Kiznaiver and Ryūichi Kashima in School Babysitters. In 2018, he won the Best New Actor Award at the 12th Seiyu Awards.

## Biography

Nishiyama wanted to work using his voice since his 6th year of elementary school; in junior high school, he was suggested by a friend to become a voice actor. During high school, he participated in the Creative Course (which included voice actor and broadcast major) of his school. In 2009, while in high school, he participated in NHK's nationwide high school broadcast competition.
In 2009, he participated in the 3rd 81 Audition and won a special award, after which he entered 81 Produce's training school. In May 2011, he joined the company 81 Produce. In 2015, he launched the entertainment group "Ooimachi Cream Soda" along with Reona Irie and Yuu Taniguchi. As part of Ooimachi Cream Soda, Nishiyama also acts in various stage plays.
In 2016, Nishiyama released his first personal book Nishiyama-san Chi no Koutaro-kun. In 2017, he published a photo essay book Tarorizumu. In 2018, he won the Best New Actor Award at the 12th Seiyuu Awards. Nishiyama shared the award with Taku Yashiro and Shun Horie.
In 2020, Nishiyama made his debut as singer from Lantis with mini album CITY.

## Filmography
### Anime

List of voice performances in anime :
| Year | Title | Role | Notes |
| 2012 | Sankarea: Undying Love | Well-rounded man | |
| 2012 | Accel World | Man 1 | |
| 2012 | Kokoro Connect | Male student | |
| 2012 | Beyblade: Shogun Steel | Blader B | |
| 2013 | The Severing Crime Edge | Schoolboy | |
| 2013 | Hayate the Combat Butler! Cuties | Staff | |
| 2013 | Stella Women's Academy, High School Division Class C$^3$ | Enemy, customer | |
| 2013 | Voice Acting Sentai Boystome 7 ja:声優戦隊ボイストーム7 | Delusion beast coryge 妄想獣コージ | |
| 2014 | D-Frag! | Matsuhisa | |
| 2014 | No-Rin | Student | |
| 2014–15 | Haikyū!! series | Kazuhito Narita, Kawashima | |
| 2014 | Free! | Toru Iwashimizu | |
| 2014 | Blue Spring Ride | Junior high school boy | |
| 2014 | When Supernatural Battles Became Commonplace | Student | |
| 2014 | Psycho-Pass 2 | Man | |
| 2014 | Your Lie in April | Soccer club member | |
| 2015–17 | Cute High Earth Defense Club Love! | Atsushi Kinugawa | Also LOVE! LOVE! (Season 2), LOVE! LOVE! LOVE! (OVA) |
| 2015 | The Disappearance of Nagato Yuki-chan | Baseball staff, male teacher | |
| 2015 | Jewelpet: Magical Change | Sakutaro Kirara | |
| 2015 | Rin-ne | Boy | |
| 2015 | Overlord | Bellote | |
| 2015 | Noragami Aragoto | Suzuha | |
| 2015 | Star-Myu | Student | |
| 2015 | Tantei Team KZ Jiken Note | Kazunori Uesugi | |
| 2016 | Haruchika | Kōji Iwasaki | |
| 2016 | Kiznaiver | Yoshiharu Hisomu | |
| 2016 | High School Fleet | Oga | |
| 2016 | Servamp | Koyuki | |
| 2016 | Fudanshi Kōkō Seikatsu | Daigo | |
| 2016 | 91 Days | Frate Vanetti | |
| 2016 | Time Travel Girl | Leone レオーネ | |
| 2016 | All Out!! | Yuto Keta | |
| 2016 | Whistle! 2016 Version | Yūsuke Morinaga | |
| 2017 | Sagrada Reset | Hitsūchikun | |
| 2017 | Nui Nui Hinobori San Kyoudai | Aoi Hinobori | Web anime |
| 2017 | Blame! (film) | Shige | Theatrical film |
| 2017 | Free!-Timeless Medley- the Promise | Toru Iwashimizu | Theatrical film |
| 2017 | Warau Salesman NEW | Tomoyoshi Doraki | |
| 2017 | Convenience Store Boy Friends | Keiichi Miki | |
| 2017 | TSUKIPRO THE ANIMATION | Eichi Horimiya | |
| 2017 | Karada Sagashi (ONA) | Shōta Uranishi | ONA |
| 2017 | 100 Sleeping Princes and the Kingdom of Dreams: Short Stories | Xiao | ONA |
| 2017 | Sengoku Night Blood | Masatoyo Naitou | |
| 2018 | School Babysitters | Ryūichi Kashima | |
| 2018 | Hataraku Oniisan! | Angoramori-senpai | |
| 2018 | Major 2nd | Hikaru Satō | |
| 2018 | Moshi Moshi, Terumi Desu | Rintarō | |
| 2018 | The Thousand Musketeers | Lorenz | |
| 2018 | Mr. Tonegawa: Middle Management Blues | Toshimasa Kawasaki | |
| 2018 | Zoids Wild | Garlic | |
| 2018 | Skull-face Bookseller Honda-san | Kendo | |
| 2018 | Ace Attorney Season 2 | Yūsaku Amasugi | |
| 2019 | B-PROJECT: Zecchou Emotion | Yuduki Teramitsu | |
| 2019 | The Price of Smiles | Alan | |
| 2019 | I'm From Japan | Tokio Abiko | |
| 2019 | Mix | Ryō Akai | |
| 2019 | Million Arthur (TV series) | Andy | |
| 2019 | Ensemble Stars! | Kanata Shinkai | |
| 2019 | BEM | Roddy Walker | |
| 2019 | Stand My Heroes: Piece of Truth | Kyōsuke Tsuzuki | |
| 2020 | A3! Season Spring & Summer | Tsuzuru Minagi | |
| 2020 | Sing "Yesterday" for Me | Amamiya | |
| 2020 | Get Up! Get Live! | Kaede Higashizawa | |
| 2020 | Major 2nd Season 2 | Hikaru Satō/ Hikaru Sakaguchi | |
| 2020 | Sakura Kakumei ~Hana Saku Otome-tachi~ Special Animation | Yoshitaka Ooishi | ONA |
| 2020 | Aware! Meisaku-kun | Tsumire | |
| 2021 | I-Chu: Halfway Through the Idol | Saku Uruha | |
| 2021 | MAZICA PARTY | Silver | |
| 2021 | Dragon Goes House-Hunting | Archer | |
| 2021 | Re-Main | Eitarō Oka | |
| 2021 | TSUKIPRO THE ANIMATION 2 | Eichi Horimiya | |
| 2021 | Muteking the Dancing Hero | Winter | |
| 2021 | The Vampire Dies in No Time | Sagyō | |
| 2021- 2023 | IDOLiSH7 Third Beat! | Minami Natsume | (also Part 2) |
| 2022 | The Heike Story | Emperor Takakura | |
| 2022 | Fushigi Dagashiya Zenitendō | Tetsushi Soga | |
| 2022 | Kotaro Lives Alone | Tamamori | ONA |
| 2022 | She Professed Herself Pupil of the Wise Man | Eisenfald | |
| 2022 | Dance Dance Danseur | Yamato Takura | |
| 2022 | Aoashi | Junnosuke Nakano | |
| 2022 | Heroines Run the Show | Third year male student B | |
| 2022 | Shoot! Goal to the Future | Fuyi Itoda | |
| 2022 | Penpe to Pinpi | Penpe | ONA, also director and screenwriter |
| 2022 | Roly Poly Peoples | Roly | ONA |
| 2023 | The Vampire Dies in No Time Season 2 | Sagyō | |
| 2023 | HIGH CARD | Jasper Libera | |
| 2023 | The Tale of the Outcasts | Shura | |
| 2023 | The Ancient Magus' Bride Season 2 | Isaac Farrar | |
| 2023 | Mix: Meisei Story Season 2 | Ryō Akai | |
| 2023 | My Happy Marriage | Kōji Tatsuishi | |
| 2023 | Ensemble Stars!! Tsuioku Selection 'Element' | Kanata Shinkai | ONA |
| 2023 | Case Closed | Takashi Nakajima | |
| 2023 | My New Boss Is Goofy | Kentarō Momose | |
| 2023 | B-Project Passion*Love Call | Yuduki Teramitsu | |
| 2024 | Egumi Legacy | Uninvited Guest | |
| 2025 | Cute High Earth Defense Club Eternal Love! | Atsushi Kinugawa | Theatrical film |
| 2025 | Tougen Anki: Legend of the Cursed Blood | Jin Kougasaki | |
| 2025 | With You, Our Love Will Make It Through | Yukihiro Aida | |

### Video games

List of voice performances in video games :
| Year | Title | Role | Notes | Source |
| 2014 | Haikyu!! | Kazuhito Narita | DS | |
| 2015 | Ensemble Stars! | Kanata Shinkai | | |
| 2015 | So Cute it Hurts!! | Todo-kun 藤堂くん | DS | |
| 2015 | Future Card Buddyfight: Explosive Fight of Friendship | Makoto Tsukimiya | DS | |
| 2015 | Cute High Earth Defense Club Love! Game! | Atsushi Kinugawa | | |
| 2015 | 100 Sleeping Princes and the Kingdom of Dreams | Xiao Riel Kanata Shinkai | | [67] [68] [69] |
| 2016 | Yunohana Spring! ~Cherishing Time~ | Soichiro Futaba | | |
| 2016 | Suuran Digit | Mitsu Nitou | | |
| 2016 | Cute High Earth Defense Club Love! Love! Game! | Atsushi Kinugawa | | |
| 2016 | I-Chu | Saku Uruha | | |
| 2016 | Icchibanketsu -ONLINE- | Mitsukuni | | |
| 2016 | Stand My Heroes | Kyōsuke Tsuzuki | | |
| 2016 | Granblue Fantasy | Wystom | | |
| 2016 | SOUL REVERSE ZERO | Allen | | |
| 2016 | Magic-kyun Renaissance | Tokiomi | | |
| 2017 | Akane Sasu Sekai de Kimi to Utau | Omoikane | | |
| 2017 | Idolish7 | Minami Natsume | | |
| 2017 | A3! | Tsuzuru Minagi | | |
| 2017 | TSUKINO PARADISE | Eichi Horimiya | | |
| 2017 | Sengoku Night Blood | Masatoyo Naitou | | |
| 2017 | B-PROJECT Muteki*Dangerous | Yuduki Teramitsu | | |
| 2017 | Captain Tsubasa ~Tatakae Dream Team~ | Leo | | |
| 2017 | Star Revolution ☆ 88 Seiza no Idol Kakumei | Senya Asahina | | |
| 2017 | Unnamed War 2099 | Rumon Ishido | | |
| 2018 | Akatasuki no Epika -Union Brave- | Iglesia | | |
| 2018 | Tsumugu Logic | Sosei Morotomiya, Koya Morotomiya | | [86] [87] |
| 2018 | Namu Amida Butsu! -Rendai UTENA- | Koumokuten, Mekira Taisho | | [88] [89] |
| 2019 | Hoshinari Echoes | Sui Mizushiro | | |
| 2019 | BUSTAFELLOW | Alex | | |
| 2020 | Ensemble Stars!! Music | Kanata Shinkai | | |
| 2020 | Ensemble Stars!! Basic | Kanata Shinkai | | |
| 2020 | Granblue Fantasy | Justin | | |
| 2020 | Digimon ReArise | Bearmon | | |
| 2020 | Sakura Kakumei ~Hana Saku Otome-tachi~ | Yoshitaka Ooishi | | |
| 2020 | Shokumonogatari | Kyoukadori | | |
| 2021 | B-PROJECT Ryusei*Fantasia | Yuduki Teramitsu | | |
| 2021 | Touken Ranbu | Himetsuru Ichimonji | | |
| 2021 | The Thousand Musketeers: Rhodoknight | Lorenz | | |
| 2022 | Yume Shokunin to Wasureji no Kuro Yousei | Gui | | |
| 2022 | Jujutsu Kaisen: Phantom Parade | Kaito Yūki | | |
| 2022 | Echoes of Mana | Kiruto | | |

### Drama CD

List of voice performances in drama CD :
| Title | Character |
| Einsatz | Kotoyo Shinohori |
| Mahou x Shōnen x Days!!!!! Volume 1 | Student |
| Love Nette Tune Type-05 Higanbana | Higanbana |
| Iroiro atta ne. ~Supadari shōnika-i Misuzu Yoshinori no baai~ | Yoshinori Misuzu |
| Ohayō kara oyasumi made dai 2-dan toshokan no koi ~bungaku shōjo no madobe~ | Satoshi Harima |
| Gakuen Babysitters | Ryūichi Kashima |
| SolidS drama CD Volume 2 "-Two of a kind.-" | Eichi Horimiya |
| Tutti! Frutti! | Yūki Satake |
| Yoidore no no no vol. 1 ~Kon'na senpai mita koto nai~ | Ryō Sawanoi |
| Otodoke Kareshi Cherish Vol.2 | Tamaki Hyojo |
| B-PROJECT KING OF CASTE ~Sneaking Shadow~ | Yuduki Teramitsu |
| GET UP! GET LIVE! Steam Rising | Kaede Higashizawa |
| My New Boss is Goofy | Kentaro Momose |
List of voice performances in BLCD :
| Title | Character |
| Ai no mitsu ni yoe! | Arita |
| Anata wa taidade yūga | Senior student, men |
| Immoral Triangle | Kurota Shinozaki |
| Smells Like Green Spirit | Student |
| Hang Out Crisis | Shinya Hasumi |
| Raveled Tightrope Knot | Kariya |
| Hitorijime Boyfriend | Jirō Yoshida |
| Empty Sweetie | Yuki |
| Ambivalence | Aoto Kuji |
| Jackass! | Hosaka |
| Blue Sky Complex | Harukawa |
| Lala no Kekkon Vol.2 | Lala's husband |
| Tashiro-kun, Kimitte Yatsu wa | Maru |

### Dubbing

List of voice performances in dubbing :
| Year | Title | Role |
| 2012–2015 | Thomas & Friends | Scruff |
| 2013 | The To Do List | Cameron Mitchell |
| 2018 | School of Rock | Lawrence Dooley |
| 2023- | Thomas & Friends: All Engines Go | Kenji |

### Variety shows

| Year | Network | Title | Remarks |
| 2013 (October 5-December 28) | NTV | Voice Actor Sentai Boystome 7 "cafe*soffive" | Unit "soffive" member |
| 2014 | TV Tokyo | Animemashite | Host |
| 2015 | Tokyo MX | Tokyo Otome Restaurant Season 2 "Tokyo Otome Patisserie" | Host/Member |
| 2016 | Tokyo MX | Eguchi Takuya no Oretachi Datte Iyasaretai! | Assistant |
| 2016 | Tokyo MX | Tsukipro ch. | Appearance/Member, season 2 |
| 2016 | TV Tokyo | Animemashite | Narration |
| 2016-2017 | Tokyo MX | Eguchi Takuya no Oretachi Datte Motto Iyasaretai! | Assistant, season 2 |
| 2016-2017 | Tokyo MX | Nishiyama Koutaro no Sukoyakana Bokura | Personality/MC |
| 2017 | Tokyo MX | Eguchi Takuya no Oretachi Datte Mo~tto Iyasaretai! | Assistant, season 3 |
| 2017 | Tokyo MX | Saito Soma no Wagokoro wo Kimi ni | Narration |
| 2017 | Wowow, GyaO! | Sekai-kei Variety Bangumi Boku Koe | Acted in short drama "Kimi no●● ga Sekai o Sukutta koto o Kimi wa Nanimo Shiranai" as Shizuwa Ryuu |
| 2018 | Fuji TV | Shouta-sama to Shitsuji Nishiyama no Otawamure | Co-host with Shouta Aoi, Narration |
| 2018 | Tokyo MX | Nishiyama Koutaro no Sukoboku Peace | Personality/MC, season 2 |
| 2018 | NHK BS Premium | Anisong! Premium! 2018 | Co-host with Rika Adachi (studio talk part) |
| 2019 | Tokyo MX, Wowow, GyaO! | Sekai-kei Variety Bangumi Boku Koe Season 2 | Acted in short drama "Kono Yadoya ni Tomari ni Kita Aitsu ga Kono Mura o Sukutte Kurerunja Ne?" as Yamanishi |
| 2019 | Tokyo MX | Eguchi Takuya no Oretachi Datte Yappari Iyasaretai! | Assistant, season 4 |
| 2019 | Niconico, TV Saitama | LIPSS~ Innocent na Sasayaki~ | Cast member |
| 2020 | Music On! TV | M-ON! SPECIAL "Nishiyama Koutaro" ~CITY~ | Personality |
| 2021 | Fuji TV | Kaettekita Shouta-sama to Shitsuji Nishiyama no Otawamure | Co-host with Shouta Aoi, Narration |

## Publications
### Photobooks

| Year | Title | Publisher | ISBN |
| April 29, 2015 | Binan Kōkō Chikyū Bōei-bu LOVE! Photobook "Battle Lovers no Nichijou" | Ponycan Books | ISBN 4865291423 ISBN 978-4865291421 |
| April 28, 2016 | Personal Book "Nishiyama-san Chi no Koutaro-kun" | Shufu to Seikatsusha | ISBN 4391148595 ISBN 978-4391148596 |
| December 22, 2017 | Photo Essay "Tarorizumu" | SHUFUNOTOMO | ISBN 4074269406 ISBN 978-4074269402 |
| August 30, 2018 | HACObook 2nd Season "Hansel to Gretel × Nishiyama Koutaro" | Movic | JAN 4549743240411 |
| February 13, 2021 | Photobook "Tarorinisuto" | SHUFUNOTOMO | ISBN 978-4-07-442212-8 |

## Discography
### Extended plays

List of extended plays, with selected chart positions, sales figures and certifications :
| Title | Year | Album details | JPN Oricon | JPN Hot | Sales | Certifications |
| City | 2020 | Released: October 7, 2020 Label: Lantis Formats: CD, digital download | 7 | 9 | JPN: 10,497 (physical) JPN: 9,894 (downloads & streaming) | — |
| Laundry | 2021 | Released: July 21, 2021 Label: Lantis Formats: CD, digital download | 16 | - | - | N/A |
| my bag | 2025 | Released: March 14, 2025 Label: Lantis Formats: CD, digital download | - | - | | |
| | "—" denotes releases that did not chart or were not released in that region. | "—" denotes releases that did not chart or were not released in that region. | "—" denotes releases that did not chart or were not released in that region. | "—" denotes releases that did not chart or were not released in that region. | "—" denotes releases that did not chart or were not released in that region. | "—" denotes releases that did not chart or were not released in that region. |

## Awards

| Year | Award | Result |
| 2009 | 3rd 81 Audition Special Award | Won |
| 2018 | 12th Seiyu Awards for Best Newcomer Actor | Won |