Kotaro Koizumi: movies and TV shows
Kotaro Koizumi has 88 credits in the archive: 24 films and 64 TV series, from 2001 to 2026. Highest rated: What's So Wrong with "Azatoi"? (9.5/10).
Career timeline
2001 – 2026 · busiest year: 2013 (8 credits)
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Full filmography
| Year | Title | Role | Type | Rating | Age then |
|---|---|---|---|---|---|
| 2026 | Psychotherapist Himuro Sosuke no Jikenbo 3 | Film | — | 47 | |
| 2025 | Missing Persons Investigation Unit: The Missing Truth | Shinpei Sasazuka | TV | 4.0 | 46 |
| 2025 | Golden SixTONES | TV | 7.0 | 46 | |
| 2025 | The Royal Family | Yutaro Sanno | TV | 8.7 | 46 |
| 2024 | Rude to Love | Film | 6.5 | 45 | |
| 2024 | Super Children's Day ~ To you who live until Year 2100 ~ | TV | — | 45 | |
| 2024 | Hare no Hi Cinderella Wedding Dress wo Nihon e! Aru Josei no Chosen | Yuki Yoshito | Film | — | 45 |
| 2023 | Pokémon Horizons | Homeroom Teacher (voice) | TV | 8.7 | 44 |
| 2023 | Worst to First: A Teen Baseball Miracle | Niwa Shingo | TV | 8.1 | 44 |
| 2023 | Fixer | Koji Itakura | TV | 8.6 | 44 |
| 2023 | Stand Up Start | Taiga Mihoshi | TV | 7.0 | 44 |
| 2023 | Black Postman | Shin Mizuno | TV | 6.0 | 44 |
| 2023 | Oshorin | Film | — | 44 | |
| 2023 | Psychotherapist Himuro Sosuke no Jikenbo 2 | Film | — | 44 | |
| 2022 | The Wall of the Eye | Tatsuo Hagizaki | TV | 8.5 | 43 |
| 2022 | The Hound of the Baskervilles: Sherlock the Movie | Haruto Sutei | Film | 7.0 | 43 |
| 2022 | POP UP! | Monday | TV | — | 43 |
| 2022 | Mokuhihan | Film | — | 43 | |
| 2022 | Psychotherapist Himuro Sosuke no Jikenbo 1 | Film | — | 43 | |
| 2021 | Enzaihan | TV | 8.5 | 42 | |
| 2021 | You're Not Normal, Either! | Isao Miyamoto | Film | 7.4 | 42 |
| 2020 | What's So Wrong with "Azatoi"? | TV | 9.5 | 41 | |
| 2020 | Mothers in Love | Saiki Takumi | TV | 6.0 | 41 |
| 2020 | Byouin no Naoshikata ~Doctor Arihara no Chousen~ | TV | — | 41 | |
| 2019 | The Good Wife | Masahiro Tada | TV | 7.5 | 40 |
| 2019 | Koizumi Kōtarō and Muro Tsuyoshi Jiyū Kimamani Futaritabi | TV | — | 40 | |
| 2019 | 비밀관계 ~선생님은 동거인~ | TV | — | 40 | |
| 2018 | Black Pean | Gonta Takashina | TV | 7.6 | 39 |
| 2018 | Wagaya no Mondai | [Husband] | TV | — | 39 |
| 2018 | The Real Culprit | TV | 7.0 | 39 | |
| 2017 | Akira and Akira | TV | 7.0 | 38 | |
| 2017 | Family Court Investigator Akira Yamanobou 2 | Akira Yamanobo | Film | — | 38 |
| 2016 | The Unbroken | TV | 8.2 | 37 | |
| 2016 | Keishicho Zero Gakari | Kobayakawa Fuyuhi | TV | 6.8 | 37 |
| 2016 | Chef: Three Star School Lunch | Shogo Shinoda | TV | 8.2 | 37 |
| 2016 | Cinderella Formula | Igarashi Toru | TV | 6.7 | 37 |
| 2016 | Crime Mystery by Kosaku Asahina: Tragedy of Hanasaki Village | Kosaku Asahina | Film | — | 37 |
| 2016 | Family Court Probation Officer, Akira Yamanobo | Akira Yamanobo | Film | — | 37 |
| 2015 | Shitamachi Rocket | TV | 7.9 | 36 | |
| 2015 | Age Harassment | Akihiko Hoshina | TV | 7.0 | 36 |
| 2015 | Shi no Zōki | Kyota Numazaki | TV | 7.5 | 36 |
| 2014 | Platonic | Kazuhisa Mochizuki | TV | 6.0 | 35 |
| 2014 | Funeral Parade of St.Peter | TV | — | 35 | |
| 2014 | Petero no Soretsu | Saburo Sugimura | TV | 7.0 | 35 |
| 2014 | Owakon TV | Keisuke Mihashi | TV | — | 35 |
| 2013 | 家庭教師が解く！～殺人方程式の推理ドリル～ | Film | 7.0 | 34 | |
| 2013 | Nameless Poison | Saburo Sugimura | TV | 8.0 | 34 |
| 2013 | Nameless Poison [aka Namonaki Doku] | Saburo Sugimura | Film | — | 34 |
| 2013 | Midnight Ferris Wheel | Maa-kun / Kojima Masaomi | TV | 7.6 | 34 |
| 2013 | Otasukeya Jinpachi | Iguchi Tatsuya | TV | 7.0 | 34 |
| 2013 | Keiji Yoshinaga Seiichi Namida no Jikenbo | TV | 9.0 | 34 | |
| 2013 | 魔性の群像 刑事・森崎慎平 | TV | — | 34 | |
| 2013 | Samurai Pirates | Film | — | 34 | |
| 2012 | Ningen Kansatsu Variety MONITORING | TV | 9.0 | 33 | |
| 2012 | Bayside Shakedown the Final: The New Hope | Shigeru Koike | Film | 5.8 | 33 |
| 2012 | Princess of the Frog | Tetsuro Isaka | TV | 7.0 | 33 |
| 2012 | 小京都連続殺人事件 | TV | — | 33 | |
| 2012 | Will The Luxury Of Love Ever Fall My Way? | Iida Takeshi | TV | 3.0 | 33 |
| 2012 | One in a hundred thousand | Tsukamoto | Film | 7.0 | 33 |
| 2011 | HUNTER - Women After Reward Money | Goro Terashima | TV | 8.0 | 32 |
| 2011 | Secret Relationship: The teacher is my housemate | Kobayashi Naoki | TV | 6.0 | 32 |
| 2011 | 悪党～重犯罪捜査班 | Keiichiro Satonaka（里中 啓一郎） | TV | — | 32 |
| 2011 | 松本清張サスペンス (テレビ東京) | TV | — | 32 | |
| 2010 | Bayside Shakedown 3: Set the Guys Loose | Shigeru Koike | Film | 4.9 | 31 |
| 2010 | Goodbye Alma | Sgt Seiji Ogata | TV | — | 31 |
| 2010 | Gakeppuchi no Eri - Kono yo de ichiban daiji na 'Kane' no hanashi | Masamune Hiraizumi | TV | — | 31 |
| 2010 | Dr. Hisayoshi Suma | 秋山浩平 | Film | 5.0 | 31 |
| 2009 | Love Call Center | Tokura Wataru | TV | 7.0 | 30 |
| 2008 | Ano Hi Bokura no Inochi wa Toiretto Pepa yori mo Karukatta | Kenichi Asakura | Film | 7.0 | 29 |
| 2007 | The Pride of the Temp | Kensuke Satonaka | TV | 7.3 | 28 |
| 2007 | Hanayome to Papa | TV | 6.0 | 28 | |
| 2007 | Bad Dad | 丸山洋介 | TV | — | 28 |
| 2006 | Attention Please | Shuusuke Tsutsumi | TV | 7.6 | 27 |
| 2006 | Gachi Baka! | Genki Watanabe | TV | 4.0 | 27 |
| 2006 | Time of Distrust ~ Women's Wars | Kei Kondo | TV | — | 27 |
| 2006 | 松本清張ドラマスペシャル 波の塔(2006年版) | TV | — | 27 | |
| 2006 | Seicho Matsumoto Drama Special: Wave Tower | Onogi Takao | Film | — | 27 |
| 2005 | Yoshitsune | Taira no Sukemori | TV | 8.3 | 26 |
| 2005 | Slow Dance | Yuta Yajima | TV | 7.0 | 26 |
| 2005 | Kamen Rider Hibiki The Movie: Hibiki & The Seven War Oni | Takeshi | Film | 5.5 | 26 |
| 2005 | Negotiator | Koike | Film | 7.4 | 26 |
| 2004 | Objection! | TV | — | 25 | |
| 2003 | You are my only Madonna | Takashi Nakano | TV | — | 24 |
| 2003 | Bayside Shakedown 2 | Shigeru Koike | Film | 6.2 | 24 |
| 2002 | Gokusen | Seiichi Natsume | TV | 8.0 | 23 |
| 2002 | Nurseman | TV | 6.0 | 23 | |
| 2002 | 狂った果実2002 | TV | — | 23 | |
| 2001 | Home & Away | TV | 6.7 | 22 |