# Taichi Kokubun

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Japanese keyboardist and actor (born 1974)

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Taichi Kokubun 国分 太一 Kokubun in 2018 Background information Born (1974-09-02) September 2, 1974 (age 51) Origin Higashikurume, Tokyo, Japan Genres Rock Occupations Keyboardist actor Instruments Electronic keyboard piano Years active 1988–2025 (indefinite hiatus) Labels Sony Music Entertainment Universal Music Japan Storm Labels

Musical artist

**Taichi Kokubun** (国分 太一, *Kokubun Taichi*; born September 2, 1974) is a [Japanese](/source/Japanese_people) [keyboardist](/source/Keyboardist) and [actor](/source/Actor).[1][2] He plays keyboard for [Tokio](/source/Tokio_(band)), a musical group of [Starto Entertainment](/source/Starto_Entertainment) formerly known as [Johnny & Associates](/source/Johnny_%26_Associates).

## Early life

Taichi Kokubun was born in [Higashikurume, Tokyo](/source/Higashikurume%2C_Tokyo).

## Career

### As an artist

Before debuting with [Tokio](/source/Tokio_(band)), Kokubun, like other Tokio members, was a backup-dancer for [Johnny's Entertainment](/source/Johnny's_Entertainment) boy bands, including [Hikaru Genji](/source/Hikaru_Genji_(band)).[3] In 1990 he became the keyboardist of Tokio, but it was not until 1994 that the band debuted.[3]

In 2004, Kokubun took a break from Tokio to form a temporary group with [KinKi Kids](/source/KinKi_Kids) member [Tsuyoshi Domoto](/source/Tsuyoshi_Domoto).[3] Together they released the theme song to *[Fantastipo](/source/Fantastipo)*, a movie in which they starred.

### As an actor

Kokubun began his acting career with a role in *Abunai Shōnen III*, a 1989 Japanese drama. Since 1993, he has played parts in drama shows and movies such as *Fantistipo* and *Shaberedomo Shaberedomo*.

He has hosted *Gachinko!* with other [Tokio](/source/Tokio_(band)) members.[2] Currently Kokubun hosts *Kaitai Shin Show* and *Shonen Club Premium* on [NHK](/source/NHK), *Tetsuwan Dash* and *Guruguru Ninety-Nine* on [NTV](/source/Nippon_Television), *R30* and *Sekai Kurabete Mitara* on [TBS](/source/TBS_Television_(Japan)), *Mentore G* on [Fuji TV](/source/Fuji_TV), and *Aura no Izumi* on [TV Asahi](/source/TV_Asahi).[4]

In April 2009, Kokubun became a [sportscaster](/source/Sportscaster) for the [Fuji TV](/source/Fuji_TV) show *Sports!*.[5]

### Hiatus

On June 20, 2025, on a press conference offered by [Nippon Television](/source/Nippon_Television) president Hiroyuki Fukuda, it was announced that Kokubun would step down from his hosting duties on *[Tetsuwan Dash](https://en.wikipedia.org/w/index.php?title=Tetsuwan_Dash&action=edit&redlink=1) [[ja](https://ja.wikipedia.org/wiki/%E3%82%B6!%E9%89%84%E8%85%95!DASH!!)]* due to "multiple compliance-related incidents in the past" not crime related, without explaining the details, because of privacy protection. Kokubun himself accepted the decision taken by the broadcaster, and apologized for the trouble caused. It was also informed that he would take an indefinite leave of absence.[6][7][8][9] Compliance officers of the broadcaster have revealed that the case is about sexual harassment. Other broadcasters are considering removing Kokubun from their programs. Some sponsors, such as Japanet Holdings, have started removing ads on which he appears.[10] As a result, [TV Tokyo](/source/TV_Tokyo) cancelled the planned June 22nd broadcast of *[Danshi Godan](https://en.wikipedia.org/w/index.php?title=Danshi_Godan&action=edit&redlink=1) [[ja](https://ja.wikipedia.org/wiki/%E7%94%B7%E5%AD%90%E3%81%94%E3%81%AF%E3%82%93)]* and was dropped from the 2025 edition of the [TV Tokyo Music Festival](https://en.wikipedia.org/w/index.php?title=TV_Tokyo_Music_Festival&action=edit&redlink=1) [[ja](https://ja.wikipedia.org/wiki/%E3%83%86%E3%83%AC%E6%9D%B1%E9%9F%B3%E6%A5%BD%E7%A5%AD)].[11] [Mainichi Broadcasting System](/source/Mainichi_Broadcasting_System) also followed suit by cancelling the planned June 21st broadcast of *[Tokio Terrace](https://en.wikipedia.org/w/index.php?title=Tokio_Terrace&action=edit&redlink=1) [[ja](https://ja.wikipedia.org/wiki/TOKIO%E3%83%86%E3%83%A9%E3%82%B9)]*.[12] [TBS](/source/TBS_Television_(Japan)) announced on June 24th that it has dropped him from *[Sekai Kurabete Mitara](https://en.wikipedia.org/w/index.php?title=Sekai_Kurabete_Mitara&action=edit&redlink=1) [[ja](https://ja.wikipedia.org/wiki/%E4%B8%96%E7%95%8C%E3%81%8F%E3%82%89%E3%81%B9%E3%81%A6%E3%81%BF%E3%81%9F%E3%82%89)]*. Since the show's episodes are recorded in advance, Kokubun would be edited out from the batch of episodes that TBS had scheduled to air at that time.[13]

On November 26, 2025, Kokubun held a press conference where he apologized to everyone affected over the issue that ended his participation as a Tokio member, as well as the suspension of his activities. He also informed about his lawyer filing a petition for human rights relief with the Japan Federation of Bar Associations in October over the response that Nippon Television had, resulting in Kokubun's decision to step down from "The Tetsuwan Dash".[14][15]

## Filmography

Year/s Title Medium Role Notes 1989 Abunai Shōnen III TV Uncredited role 1993 Dousoukai TV Ushio 1994 Otōsan wa Shinpaisho TV Yagami-kun no Katei no Jijo TV Koji Yagami 1995 Haruyo, Koi TV The Chef TV Taichi 1996 Glass no Kakeratachi TV 1997 Kin no Tamago TV Kenshui Nanako TV Shinya Aramaki 1998 Oshigoto Desu TV 1999 Yonigeya Honpo TV Shin Oretachi no Tabi TV Episode 10 only 2000 Bus Stop TV Kyugo Abe 2001 Omae no Yukichi ga Naiteiru TV 2002 Otōsan TV Jiro Yamaguchi Engimono TV Lead role 2004 Tokio TV Takumi Miyamoto Lead role 2005 Hiroshima Showa 20 nen 8 Gatsu Muika TV Michaki Shigematsu Fantistipo Movie Toraji Starred with KinKi Kids member Tsuyoshi Domoto, whom he released the theme song to the movie with 2006 Dance Drill TV Wataru Ishibashi 2007 Inochi no Iro Enpitsu TV Lead role Shaberedomo Shaberedomo Movie Mitsuba Award a Mainichi Film Award for Best Actor[2]

## References

1. **[^](#cite_ref-jonnysnet_1-0)** ["Johnny's Net Tokio Profiles"](https://web.archive.org/web/20090926181743/http://www.johnnys-net.jp/j/artists/tokio/prof/prof.html) (in Japanese). Archived from [the original](http://www.johnnys-net.jp/j/artists/tokio/prof/prof.html) on 2009-09-26. Retrieved 2009-12-21.

1. ^ [***a***](#cite_ref-imdb_2-0) [***b***](#cite_ref-imdb_2-1) [***c***](#cite_ref-imdb_2-2) ["Taichi Kokubun on IMDB"](https://www.imdb.com/name/nm1155603/). Retrieved 2009-12-21.

1. ^ [***a***](#cite_ref-jamebio_3-0) [***b***](#cite_ref-jamebio_3-1) [***c***](#cite_ref-jamebio_3-2) ["TOKIO - artists - JaME U.S.A."](https://web.archive.org/web/20090822045302/http://www.jame-world.com/us/database-artists-overview-403-tokio.html) Archived from [the original](http://www.jame-world.com/us/database-artists-overview-403-tokio.html) on 2009-08-22. Retrieved 2009-09-29.

1. **[^](#cite_ref-tokg07_4-0)** ["Kokubun completes conquest of major networks"](http://www.tokyograph.com/news/id-2742). TokyoGraph. Retrieved 2009-12-21.

1. **[^](#cite_ref-tokg09_5-0)** ["Taichi Kokubun becomes a sportscaster"](http://www.tokyograph.com/news/id-4542). TokyoGraph. Retrieved 2009-12-21.

1. **[^](#cite_ref-6)** ["日テレ社長、国分太一の報告受けた際の心境「ただただショック。残念」"](https://web.archive.org/web/20250620054009/https://www.oricon.co.jp/news/2391715/full/). *Oricon* (in Japanese). 20 June 2025. Archived from [the original](https://www.oricon.co.jp/news/2391715/full/) on 20 June 2025. Retrieved 20 June 2025.

1. **[^](#cite_ref-7)** ["国分太一 （株）TOKIOが解雇も 全番組降板申し入れ コンプラ違反で日テレが20日会見"](https://mainichi.jp/articles/20250620/spp/sp0/006/075000c). *Mainichi* (in Japanese). 20 June 2025. Retrieved 20 June 2025.{{[cite web](https://en.wikipedia.org/wiki/Template:Cite_web)}}: CS1 maint: deprecated archival service ([link](https://en.wikipedia.org/wiki/Category:CS1_maint:_deprecated_archival_service))

1. **[^](#cite_ref-8)** ["TOKIO国分太一、無期限活動休止 謝罪コメントも発表「自分を見つめ直させていただきます」【全文掲載】"](https://web.archive.org/web/20250620071326/https://www.oricon.co.jp/news/2391666/full/). *Oricon* (in Japanese). 20 June 2025. Archived from [the original](https://www.oricon.co.jp/news/2391666/full/) on 20 June 2025. Retrieved 20 June 2025.

1. **[^](#cite_ref-9)** ["国分太一さん、日テレ番組を降板 コンプライアンス上の問題行為"](https://ghostarchive.org/archive/20250620093125/https://www.kochinews.co.jp/article/detail/874934). *Kochi News* (in Japanese). 20 June 2025. Archived from [the original](https://www.kochinews.co.jp/article/detail/874934) on 20 June 2025. Retrieved 20 June 2025.

1. **[^](#cite_ref-10)** ["国分太一さんのコンプライアンス違反はセクハラか 無期限活動休止、出演CMも差し止め"](https://www.sankei.com/article/20250620-3UYIMJICWFK3NKUR4Q4XJSHQJY/). *Sankei* (in Japanese). 20 June 2025. Retrieved 20 June 2025.{{[cite web](https://en.wikipedia.org/wiki/Template:Cite_web)}}: CS1 maint: deprecated archival service ([link](https://en.wikipedia.org/wiki/Category:CS1_maint:_deprecated_archival_service))

1. **[^](#cite_ref-11)** ["テレビ東京、「男子ごはん」22日放送分をさしかえ 国分太一さんコンプラ違反の影響拡大"](https://www.sankei.com/article/20250620-RP2VU7YZCVDRJEXJTA42K7GXH4/). *The Sankei Shimbun* (in Japanese). 2025-06-20. Retrieved 2025-06-29.

1. **[^](#cite_ref-12)** ["ＭＢＳ ２１日の国分太一出演番組「TOKIOテラス」放送休止を発表 今後は「引き続き検討」"](https://www.daily.co.jp/gossip/2025/06/20/0019131895.shtml). *Daily* (in Japanese). 2025-06-20. Retrieved 2025-06-29.

1. **[^](#cite_ref-13)** ["国分太一さん出演番組について"](https://www.tbs.co.jp/information/20250624.html). *[TBS](/source/TBS_Television_(Japan))* (in Japanese). 2025-06-24. Retrieved 2025-06-29.

1. **[^](#cite_ref-14)** ["元TOKIO国分太一氏が会見「心よりお詫び申し上げます」"傷付けてしまった"当事者やファン、関係者に謝罪"](https://web.archive.org/web/20251126064341/https://www.fnn.jp/articles/-/965951). *FNN* (in Japanese). 26 November 2025. Archived from [the original](https://www.fnn.jp/articles/-/965951) on 26 November 2025. Retrieved 26 November 2025.

1. **[^](#cite_ref-15)** ["元「TOKIO」の国分太一さんが会見で謝罪 涙ながらに「数日間ですべてを失った」"](https://web.archive.org/web/20251126061012/https://news.tv-asahi.co.jp/news_society/articles/000468869.html). *TV Asahi News* (in Japanese). 26 November 2025. Archived from [the original](https://news.tv-asahi.co.jp/news_society/articles/000468869.html) on 26 November 2025. Retrieved 26 November 2025.

## External links

- [Taichi Kokubun](https://www.imdb.com/name/nm1155603/) at [IMDb](/source/IMDb_(identifier))

- [Tokio Official Website](https://starto.jp/s/p/artist/7?lang=en&ima=3816)

v t e Tokio Shigeru Joshima Masahiro Matsuoka Taichi Kokubun Hiromu Kojima Tatsuya Yamaguchi Tomoya Nagase Albums Tokio Bad Boys Bound Blowing Wild & Mild Graffiti Yesterday & Today 5 Ahead Glider Act II Harvest Sugar 17 Cover albums TOK10 Remix albums Tokio Remix Compilations Best E.P Selection of Tokio Best EP Selection of Tokio II Heart Singles "Love You Only" "Ashita no Kimi o Mamoritai (Yamato2520)" "Uwasa no Kiss" "Heart o Migakukkyanai" "Soko Nashi Love" "Sukisa (Ticket to Love)" "Kaze ni Natte" "Magic Channel" "Arigatō... Yūki" "Everybody Can Do!" "Furarete Genki" "Julia" "Kono Yubi Tomare!" "Love & Peace" "Kimi o Omōtoki" "Nandomo Yume no Naka de Kurikaesu Love Song" "Wasureenu Kimi He" "Ai no Arashi" "Minna de Wahhahha" "Koi ni Kizuita Yoru" "Doitsu mo Koitsu mo" "Message/Hitoribotchi no Haburashi" "Kanpai!!" "Dr/Only One Song" "Hana Uta" "Green" "Ding Dong/Glider" "Ambitious Japan!" "Love Love Manhattan/Alive-Life" "Transistor G Girl" "Jibun no Tameni/For You" "Boku no Renai Jijyou to Daidokoro Jijyou" "Ashita o Mezashite!" "Mr. Traveling Man" "Get Your Dream" "Sorafune/Do! Do! Do!" "Hikari no Machi/Run Free (Swan Dance o Kimi to)" "Honjitsu, Mijukumono/Over Drive" "Seisyun" "Amagasa/Akirerukurai Bokura wa Negaou" "Taiyō to Sabaku no Bara/Subeki Koto" "Advance/Mata Asa ga Kuru" "Haruka" "NaNaNa (Taiyo Nante Irane)" Related articles Discography Johnny & Associates (J Storm) Sony Music Entertainment Japan Universal Music Group

v t e Mainichi Film Award for Best Actor Masayuki Mori (1947) Chishū Ryū (1948) Takashi Shimura (1949) Shin Saburi (1950) Chishū Ryū (1951) Shin Saburi (1952) Ken Uehara (1953) So Yamamura (1954) Hisaya Morishige (1955) Keiji Sada (1956) Toshiro Mifune (1957) Keiju Kobayashi (1958) Eiji Funakoshi (1959) Keiju Kobayashi (1960) Tatsuya Nakadai (1961) Taiji Tonoyama (1962) Keiju Kobayashi (1963) Kō Nishimura (1964) Rentarō Mikuni (1965) Shoichi Ozawa (1966) Kunie Tanaka (1967) Minori Terada (1968) Kiyoshi Atsumi (1969) Hisashi Igawa (1970) Shintaro Katsu (1971) Takeo Chii (1972) Tetsurō Tamba (1973) Rentarō Mikuni (1974) Shin Saburi (1975) Tetsuya Watari (1976) Ken Takakura (1977) Ken Ogata (1978) Tomisaburo Wakayama (1979) Tatsuya Nakadai (1980) Takahiro Tamura (1981) Kō Nishimura (1982) Ken Ogata (1983) Tsutomu Yamazaki (1984) Kin'ya Kitaōji (1985) Eiji Okuda (1986) Masahiko Tsugawa (1987) Hajime Hana (1988) Rentarō Mikuni (1989) Masato Furuoya (1990) Masatoshi Nagase (1991) Kyōzō Nagatsuka (1992) Gorō Kishitani (1993) Eiji Okuda (1994) Koji Yakusho (1995) Koji Yakusho (1996) Yoshio Harada (1997) Masahiro Motoki (1998) Keiju Kobayashi (1999) Tadanobu Asano (2000) Tatsuya Mihashi (2001) Hiroyuki Sanada (2002) Toshiyuki Nishida (2003) Takeshi Kitano (2004) Tadanobu Asano (2005) Kōichi Satō (2006) Taichi Kokubun (2007) Hiroshi Abe (2008) Kenichi Matsuyama (2009) Shinichi Tsutsumi (2010) Mirai Moriyama (2011) Isao Natsuyagi (2012) Ryuhei Matsuda (2013) Go Ayano (2014) Shinya Tsukamoto (2015) Masahiro Motoki (2016) Masaki Suda (2017) Tasuku Emoto (2018) Ryo Narita (2019) Mirai Moriyama (2020) Takeru Satoh (2021) Kenji Sawada (2022) Ryohei Suzuki (2023)

v t e Starto Entertainment Current Artists Groups KinKi Kids 20th Century NEWS Super Eight KAT-TUN Hey! Say! JUMP Kis-My-Ft2 Busaiku timelesz A.B.C-Z West. SixTones Snow Man Naniwa Danshi Travis Japan Ae! Group Agent contract Tokio Arashi King & Prince Actors/Sololists Takuya Kimura Koichi Domoto Hiroki Uchi Yuma Nakayama Keito Okamoto Kento Nakajima Collaboration Group Kamigata Boyz Related Atsushi Fukuda Yoshihiko Inohara Noriyuki Higashiyama Johnny & Associates

Authority control databases International ISNI VIAF National Japan Academics CiNii Artists MusicBrainz

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Adapted from the Wikipedia article [Taichi Kokubun](https://en.wikipedia.org/wiki/Taichi_Kokubun) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Taichi_Kokubun?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.