Acting
Kotaro Koizumi
Born 10 July 1978 · Kanagawa, Japan · 48
Known for
Highlights
Pokémon Horizons
2023 · Series · Homeroom Teacher (voice)
Gokusen
2002 · Series · Seiichi Natsume
You're Not Normal, Either!
2021 · Film · Isao Miyamoto
Shitamachi Rocket
2015 · Series
Black Pean
2018 · Series · Gonta Takashina
Chef: Three Star School Lunch
2016 · Series · Shogo Shinoda
Filmography
Movies
21 films
Psychotherapist Himuro Sosuke no Jikenbo 3
2026 · Film
Rude to Love
2024 · Film
Hare no Hi Cinderella Wedding Dress wo Nihon e! Aru Josei no Chosen
2024 · Film · Yuki Yoshito
Oshorin
2023 · Film
Psychotherapist Himuro Sosuke no Jikenbo 2
2023 · Film
Mokuhihan
2022 · Film
The Hound of the Baskervilles: Sherlock the Movie
2022 · Film · Haruto Sutei
Psychotherapist Himuro Sosuke no Jikenbo 1
2022 · Film
You're Not Normal, Either!
2021 · Film · Isao Miyamoto
Family Court Investigator Akira Yamanobou 2
2017 · Film · Akira Yamanobo
Crime Mystery by Kosaku Asahina: Tragedy of Hanasaki Village
2016 · Film · Kosaku Asahina
Samurai Pirates
2013 · Film
家庭教師が解く！～殺人方程式の推理ドリル～
2013 · Film
One in a hundred thousand
2012 · Film · Tsukamoto
Bayside Shakedown THE FINAL: The New Hope
2012 · Film · Shigeru Koike
Bayside Shakedown 3: Set the Guys Loose
2010 · Film · Shigeru Koike
Ano Hi Bokura no Inochi wa Toiretto Pepa yori mo Karukatta
2008 · Film · Kenichi Asakura
Seicho Matsumoto Drama Special: Wave Tower
2006 · Film · Onogi Takao
Kamen Rider Hibiki The Movie: Hibiki & The Seven War Oni
2005 · Film · Takeshi
Negotiator: Mashita Masayoshi
2005 · Film · Koike
Bayside Shakedown 2
2003 · Film · Shigeru Koike
Filmography
Series
59 shows
Hakone Ekiden: Our Story
2026 · Series · Tomoya Sone
The Royal Family
2025 · Series · Yutaro Sanno
Missing Persons Investigation Unit: The Missing Truth
2025 · Series · Shinpei Sasazuka
Super Children's Day ~ To you who live until Year 2100 ~
2024 · Series · Creator
Worst to First: A Teen Baseball Miracle
2023 · Series · Niwa Shingo
Black Postman
2023 · Series · Shin Mizuno
Fixer
2023 · Series · Koji Itakura
Pokémon Horizons
2023 · Series · Homeroom Teacher (voice)
Stand Up Start
2023 · Series · Taiga Mihoshi
The Wall of the Eye
2022 · Series · Tatsuo Hagizaki
POP UP!
2022 · Series · Monday
Enzaihan
2021 · Series · Ryosuke Koyama
Mothers in Love
2020 · Series · Saiki Takumi
Byouin no Naoshikata ~Doctor Arihara no Chousen~
2020 · Series
Koizumi Kōtarō and Muro Tsuyoshi Jiyū Kimamani Futaritabi
2019 · Series
비밀관계 ~선생님은 동거인~
2019 · Series
The Good Wife
2019 · Series · Masahiro Tada
The Real Culprit
2018 · Series
Black Pean
2018 · Series · Gonta Takashina
Wagaya no Mondai
2018 · Series · [Husband]
Akira and Akira
2017 · Series · Shoji Andō
Chef: Three Star School Lunch
2016 · Series · Shogo Shinoda
Cinderella Formula
2016 · Series · Igarashi Toru
The Blind Teacher
2016 · Series
The Unbroken
2016 · Series
Keishicho Zero Gakari
2016 · Series · Kobayakawa Fuyuhi
Shitamachi Rocket
2015 · Series
Shi no Zōki
2015 · Series · Kyota Numazaki
Age Harassment
2015 · Series · Akihiko Hoshina
Petero no Soretsu
2014 · Series · Saburo Sugimura
Funeral Parade of St.Peter
2014 · Series
Owakon TV
2014 · Series · Keisuke Mihashi
Platonic
2014 · Series · Kazuhisa Mochizuki
Keiji Yoshinaga Seiichi Namida no Jikenbo
2013 · Series
Nameless Poison
2013 · Series · Saburo Sugimura
Midnight Ferris Wheel
2013 · Series · Maa-kun / Kojima Masaomi
Otasukeya Jinpachi
2013 · Series · Iguchi Tatsuya
Ningen Kansatsu Variety MONITORING
2012 · Series
Princess of the Frog
2012 · Series · Tetsuro Isaka
Will The Luxury Of Love Ever Fall My Way?
2012 · Series · Iida Takeshi
HUNTER - Women After Reward Money
2011 · Series · Goro Terashima
Secret Relationship: The teacher is my housemate
2011 · Series · Kobayashi Naoki
悪党～重犯罪捜査班
2011 · Series · Keiichiro Satonaka（里中 啓一郎）
Goodbye Alma
2010 · Series · Sgt Seiji Ogata
Gakeppuchi no Eri - Kono yo de ichiban daiji na 'Kane' no hanashi
2010 · Series · Masamune Hiraizumi
Love Call Center
2009 · Series · Tokura Wataru
Bad Dad
2007 · Series · 丸山洋介
Hanayome to Papa
2007 · Series
The Pride of the Temp
2007 · Series · Kensuke Satonaka
Time of Distrust ~ Women's Wars
2006 · Series · Kei Kondo
Attention Please
2006 · Series · Shuusuke Tsutsumi
Gachi Baka!
2006 · Series · Genki Watanabe
Slow Dance
2005 · Series · Yuta Yajima
Yoshitsune
2005 · Series · Taira no Sukemori
異議あり！女弁護士大岡法江
2004 · Series
You are my only Madonna
2003 · Series · Takashi Nakano
Gokusen
2002 · Series · Seiichi Natsume
Nurseman
2002 · Series
Home & Away
2001 · Series
