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Kotaro Koizumi
ACTOR

Kotaro Koizumi

Known for Pokémon Horizons

Snapshot 2026-10-14

Born
Jul 10, 1978
Birthplace
Kanagawa, Japan
Known For
Acting
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Known For

TVPokémon Horizons
Pokémon HorizonsHomeroom Teacher (voice) · 2023
★ 8.6

Filmography

Movies

Bayside Shakedown 2Shigeru Koike
2003
Kamen Rider Hibiki The Movie: Hibiki & The Seven War OniTakeshi
2005
NegotiatorKoike
2005
Seicho Matsumoto Drama Special: Wave TowerOnogi Takao
2006
Ano Hi Bokura no Inochi wa Toiretto Pepa yori mo KarukattaKenichi Asakura
2008
Bayside Shakedown 3: Set the Guys LooseShigeru Koike
2010
DH
Dr. Hisayoshi Suma秋山浩平
2010
Bayside Shakedown THE FINAL: The New HopeShigeru Koike
2012
One in a hundred thousandTsukamoto
2012
NP
Nameless Poison [aka Namonaki Doku]Saburo Sugimura
2013
Samurai Pirates
2013
家庭教師が解く！～殺人方程式の推理ドリル～
2013
Crime Mystery by Kosaku Asahina: Tragedy of Hanasaki VillageKosaku Asahina
2016
FC
Family Court Probation Officer, Akira YamanoboAkira Yamanobo
2016
Family Court Investigator Akira Yamanobou 2Akira Yamanobo
2017
You're Not Normal, Either!Isao Miyamoto
2021
Mokuhihan
2022
Psychotherapist Himuro Sosuke no Jikenbo 1
2022
The Hound of the Baskervilles: Sherlock the MovieHaruto Sutei
2022
Oshorin
2023
Psychotherapist Himuro Sosuke no Jikenbo 2
2023
Hare no Hi Cinderella Wedding Dress wo Nihon e! Aru Josei no ChosenYuki Yoshito
2024
Rude to Love
2024
Psychotherapist Himuro Sosuke no Jikenbo 3
2026

Television

Home & Away11 eps
2001
GokusenSeiichi Natsume · 11 eps
2002
Nurseman10 eps
2002
狂
狂った果実20021 eps
2002
You are my only MadonnaTakashi Nakano · 11 eps
2003
O
Objection!9 eps
2004
異議あり！女弁護士大岡法江1 eps
2004
Slow DanceYuta Yajima · 11 eps
2005
YoshitsuneTaira no Sukemori · 49 eps
2005
Attention PleaseShuusuke Tsutsumi · 11 eps
2006
Gachi Baka!Genki Watanabe · 10 eps
2006
Time of Distrust ~ Women's WarsKei Kondo · 12 eps
2006
松波
松本清張ドラマスペシャル 波の塔(2006年版)1 eps
2006
Bad Dad丸山洋介 · 8 eps
2007
Hanayome to Papa12 eps
2007
The Pride of the TempKensuke Satonaka · 18 eps
2007
Love Call CenterTokura Wataru · 10 eps
2009
Gakeppuchi no Eri - Kono yo de ichiban daiji na 'Kane' no hanashiMasamune Hiraizumi · 9 eps
2010
Goodbye AlmaSgt Seiji Ogata · 4 eps
2010
HUNTER - Women After Reward MoneyGoro Terashima · 10 eps
2011
Secret Relationship: The teacher is my housemateKobayashi Naoki · 13 eps
2011
悪党～重犯罪捜査班Keiichiro Satonaka（里中 啓一郎） · 8 eps
2011
松(
松本清張サスペンス (テレビ東京)3 eps
2011
Ningen Kansatsu Variety MONITORING266 eps
2012
Princess of the FrogTetsuro Isaka · 11 eps
2012
Will The Luxury Of Love Ever Fall My Way?Iida Takeshi · 6 eps
2012
小
小京都連続殺人事件1 eps
2012
Keiji Yoshinaga Seiichi Namida no Jikenbo9 eps
2013
Midnight Ferris WheelMaa-kun / Kojima Masaomi · 10 eps
2013
Nameless PoisonSaburo Sugimura · 11 eps
2013
Otasukeya JinpachiIguchi Tatsuya · 12 eps
2013
魔刑
魔性の群像 刑事・森崎慎平1 eps
2013
Funeral Parade of St.Peter11 eps
2014
Owakon TVKeisuke Mihashi · 8 eps
2014
Petero no SoretsuSaburo Sugimura · 11 eps
2014
PlatonicKazuhisa Mochizuki · 8 eps
2014
Age HarassmentAkihiko Hoshina · 9 eps
2015
Shi no ZōkiKyota Numazaki · 5 eps
2015
Shitamachi Rocket10 eps
2015
Chef: Three Star School LunchShogo Shinoda · 10 eps
2016
Cinderella FormulaIgarashi Toru · 8 eps
2016
Keishicho Zero GakariKobayakawa Fuyuhi · 7 eps
2016
The Blind Teacher1 eps
2016
The Unbroken20 eps
2016
Akira and AkiraShoji Andō · 9 eps
2017
Black PeanGonta Takashina · 20 eps
2018
The Real Culprit5 eps
2018
Wagaya no Mondai[Husband] · 1 eps
2018
Koizumi Kōtarō and Muro Tsuyoshi Jiyū Kimamani Futaritabi7 eps
2019
The Good WifeMasahiro Tada · 10 eps
2019
비밀관계 ~선생님은 동거인~1 eps
2019
Byouin no Naoshikata ~Doctor Arihara no Chousen~9 eps
2020
Mothers in LoveSaiki Takumi · 9 eps
2020
What's So Wrong with "Azatoi"?1 eps
2020
EnzaihanRyosuke Koyama · 1 eps
2021
POP UP!Monday · 1 eps
2022
The Wall of the EyeTatsuo Hagizaki · 5 eps
2022
Black PostmanShin Mizuno · 7 eps
2023
FixerKoji Itakura · 15 eps
2023
Pokémon HorizonsHomeroom Teacher (voice) · 2 eps
2023
Stand Up StartTaiga Mihoshi · 11 eps
2023
Worst to First: A Teen Baseball MiracleNiwa Shingo · 10 eps
2023
Super Children's Day ~ To you who live until Year 2100 ~Creator
2024
Golden SixTONESSelf · 1 eps
2025
Missing Persons Investigation Unit: The Missing TruthShinpei Sasazuka · 8 eps
2025
The Royal FamilyYutaro Sanno · 10 eps
2025
小
小泉孝太郎の地元フルコースSelf · 2 eps
2025
Hakone Ekiden: Our StoryTomoya Sone · 1 eps
2026

Photos

Kotaro Koizumi photo
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