Kotaro Koizumi

Kotaro Koizumi

ActingBorn July 10, 1978 (age 47)Kanagawa, Japan

Known For

The Royal Family

The Royal Family

Yutaro Sanno

Ningen Kansatsu Variety MONITORING

Ningen Kansatsu Variety MONITORING

Yoshitsune

Yoshitsune

Taira no Sukemori

Fixer

Fixer

Koji Itakura

Gokusen

Gokusen

Seiichi Natsume

Pokémon Horizons

Pokémon Horizons

Homeroom Teacher (voice)

Chef: Three Star School Lunch

Chef: Three Star School Lunch

Shogo Shinoda

Midnight Ferris Wheel

Midnight Ferris Wheel

Maa-kun / Kojima Masaomi

Filmography

Acting

The Royal Family

The Royal Family9.1

2025·Yutaro Sanno·10 eps

Missing Persons Investigation Unit: The Missing Truth

Missing Persons Investigation Unit: The Missing Truth4.0

2025·Shinpei Sasazuka·8 eps

Rude to Love

Rude to Love6.5

Hare no Hi Cinderella Wedding Dress wo Nihon e! Aru Josei no Chosen

Hare no Hi Cinderella Wedding Dress wo Nihon e! Aru Josei no Chosen

2024·Yuki Yoshito

Oshorin

Worst to First: A Teen Baseball Miracle

Worst to First: A Teen Baseball Miracle8.0

2023·Niwa Shingo·10 eps

氷室想介の事件簿２～ベストセラー⼩説に隠された殺⼈事件の謎～

氷室想介の事件簿２～ベストセラー⼩説に隠された殺⼈事件の謎～

Black Postman

Black Postman6.0

2023·Shin Mizuno·7 eps

Fixer

2023·Koji Itakura·15 eps

Pokémon Horizons

Pokémon Horizons8.7

2023·Homeroom Teacher (voice)·2 eps

Stand Up Start

Stand Up Start7.0

2023·Taiga Mihoshi·11 eps

Mokuhihan

The Wall of the Eye

The Wall of the Eye9.0

2022·Tatsuo Hagizaki·5 eps

The Hound of the Baskervilles: Sherlock the Movie

The Hound of the Baskervilles: Sherlock the Movie7.0

2022·Haruto Sutei

POP UP!

2022·Monday·1 ep

氷室想介の事件簿～超高層ビル密室殺人の謎～

氷室想介の事件簿～超高層ビル密室殺人の謎～

Enzaihan

You're Not Normal, Either!

You're Not Normal, Either!7.5

2021·Isao Miyamoto

Mothers in Love

Mothers in Love6.0

2020·Saiki Takumi·9 eps

Byouin no Naoshikata ~Doctor Arihara no Chousen~

Byouin no Naoshikata ~Doctor Arihara no Chousen~

Koizumi Kōtarō and Muro Tsuyoshi Jiyū Kimamani Futaritabi

Koizumi Kōtarō and Muro Tsuyoshi Jiyū Kimamani Futaritabi

비밀관계 ~선생님은 동거인~

비밀관계 ~선생님은 동거인~

The Good Wife

The Good Wife7.5

2019·Masahiro Tada·10 eps

The Real Culprit

The Real Culprit7.0

Black Pean

2018·Gonta Takashina·20 eps

Wagaya no Mondai

Wagaya no Mondai

2018·[Husband]·1 ep

Family Court Investigator Akira Yamanobou 2

2017·Akira Yamanobo

Akira and Akira

Akira and Akira

Chef: Three Star School Lunch

Chef: Three Star School Lunch8.2

2016·Shogo Shinoda·10 eps

Cinderella Formula

Cinderella Formula5.5

2016·Igarashi Toru·8 eps

Crime Mystery by Kosaku Asahina: Tragedy of Hanasaki Village

Crime Mystery by Kosaku Asahina: Tragedy of Hanasaki Village

2016·Kosaku Asahina

The Unbroken

The Unbroken8.0

Family Court Probation Officer, Akira Yamanobo

2016·Akira Yamanobo

Keishicho Zero Gakari

Keishicho Zero Gakari6.8

2016·Kobayakawa Fuyuhi·7 eps

Shitamachi Rocket

Shitamachi Rocket7.9

Shi no Zōki

Shi no Zōki7.5

2015·Kyota Numazaki·5 eps

Age Harassment

Age Harassment7.0

2015·Akihiko Hoshina·9 eps

Petero no Soretsu

Petero no Soretsu7.0

2014·Saburo Sugimura·11 eps

Funeral Parade of St.Peter

Funeral Parade of St.Peter

Owakon TV

2014·Keisuke Mihashi·8 eps

Platonic

2014·Kazuhisa Mochizuki·8 eps

Keiji Yoshinaga Seiichi Namida no Jikenbo

Keiji Yoshinaga Seiichi Namida no Jikenbo

Nameless Poison [aka Namonaki Doku]

2013·Saburo Sugimura

Nameless Poison

Nameless Poison8.0

2013·Saburo Sugimura·11 eps

魔性の群像刑事・森崎慎平

Samurai Pirates

Samurai Pirates

家庭教師が解く！～殺人方程式の推理ドリル～

家庭教師が解く！～殺人方程式の推理ドリル～7.0

Midnight Ferris Wheel

Midnight Ferris Wheel8.2

2013·Maa-kun / Kojima Masaomi·10 eps

Otasukeya Jinpachi

Otasukeya Jinpachi7.0

2013·Iguchi Tatsuya·12 eps

One in a hundred thousand

One in a hundred thousand7.0

2012·Tsukamoto

Ningen Kansatsu Variety MONITORING

Ningen Kansatsu Variety MONITORING9.0

Bayside Shakedown the Final: The New Hope

Bayside Shakedown the Final: The New Hope5.8

2012·Shigeru Koike

小京都連続殺人事件

Princess of the Frog

Princess of the Frog7.0

2012·Tetsuro Isaka·11 eps

Will The Luxury Of Love Ever Fall My Way?

Will The Luxury Of Love Ever Fall My Way?3.0

2012·Iida Takeshi·6 eps

松本清張サスペンス (テレビ東京)

HUNTER - Women After Reward Money

HUNTER - Women After Reward Money8.0

2011·Goro Terashima·10 eps

Secret Relationship: The teacher is my housemate

Secret Relationship: The teacher is my housemate

2011·Kobayashi Naoki·13 eps

悪党重犯罪捜査班

悪党重犯罪捜査班

2011·Keiichiro Satonaka（里中啓一郎）·8 eps

Goodbye Alma

2010·Sgt Seiji Ogata·4 eps

Dr. Hisayoshi Suma5.0

2010·秋山浩平

Gakeppuchi no Eri - Kono yo de ichiban daiji na 'Kane' no hanashi

Gakeppuchi no Eri - Kono yo de ichiban daiji na 'Kane' no hanashi

2010·Masamune Hiraizumi·9 eps

Bayside Shakedown 3: Set the Guys Loose

Bayside Shakedown 3: Set the Guys Loose5.2

2010·Shigeru Koike

Love Call Center

Love Call Center7.0

2009·Tokura Wataru·10 eps

Ano Hi Bokura no Inochi wa Toiretto Pepa yori mo Karukatta

Ano Hi Bokura no Inochi wa Toiretto Pepa yori mo Karukatta7.0

2008·Kenichi Asakura

オトコの子育て

オトコの子育て

2007·丸山洋介·8 eps

Hanayome to Papa

Hanayome to Papa6.0

Haken no Hinkaku

Haken no Hinkaku7.3

2007·Kensuke Satonaka·18 eps

Seicho Matsumoto Drama Special: Wave Tower

Seicho Matsumoto Drama Special: Wave Tower

2006·Onogi Takao

松本清張ドラマスペシャル波の塔(2006年版)

Time of Distrust ~ Women's Wars

Time of Distrust ~ Women's Wars

2006·Kei Kondo·12 eps

Attention Please

Attention Please7.6

2006·Shuusuke Tsutsumi·11 eps

Gachi Baka!

2006·Genki Watanabe·10 eps

Kamen Rider Hibiki The Movie: Hibiki & The Seven War Oni

Kamen Rider Hibiki The Movie: Hibiki & The Seven War Oni5.5

Slow Dance

2005·Yuta Yajima·11 eps

Negotiator

Yoshitsune

2005·Taira no Sukemori·49 eps

Bayside Shakedown 2

Bayside Shakedown 26.1

2003·Shigeru Koike

You are my only Madonna

You are my only Madonna

2003·Takashi Nakano·11 eps

狂った果実2002

Gokusen

2002·Seiichi Natsume·11 eps

Nurseman

Home & Away

Crew

Super Children's Day ~ To you who live until Year 2100 ~

Super Children's Day ~ To you who live until Year 2100 ~