Portrait of Mantaro Koichi

Mantaro Koichi

Bio: Mantarō Koichi (小市 慢太郎 , Koichi Mantarō), born on February 15, 1969 in Osaka, is a Japanese actor. He occasionally does voice work for anime and TV dramas
Born: Sat, Feb 15 1969
Birthplace: Osaka, Japan
Mantaro Koichi is 55 years old
External Links
IMDb logoExternal Link Icon
Sort by Popularity
Scroll to TV Credits

Movies (Acting Roles)

Sorted by Release Date
Poster of The Sunday Runoff
The Sunday Runoff
Mantaro Koichi was
52 in The Sunday Runoff
Fri, Jan 07 2022
Poster of Memory's Technique
Memory's Technique
Mantaro Koichi was
51 in Memory's Technique
as 'Kazuno Tadashi'.
Fri, Nov 27 2020
Poster of Care Nin 2: The Flower in Your Heart
Care Nin 2: The Flower in Your Heart
Mantaro Koichi was
51 in Care Nin 2: The Flower in Your Heart
as 'Hirofumi Kudo'.
Fri, Apr 03 2020
Poster of One Left Hand Shot
One Left Hand Shot
Mantaro Koichi was
51 in One Left Hand Shot
Sat, Mar 14 2020
Poster of Fukushima 50
Fukushima 50
Mantaro Koichi was
51 in Fukushima 50
as 'Chairman of Japanese Nuclear Safety Commission'.
Fri, Mar 06 2020
Poster of Mellow
Mellow
Mantaro Koichi was
50 in Mellow
as 'Furukawa Sakon'.
Fri, Jan 17 2020
Poster of Yatsuhakamura
Yatsuhakamura
Mantaro Koichi was
50 in Yatsuhakamura
as '磯川警部'.
Sat, Oct 12 2019
Poster of Only the Cat Knows
Only the Cat Knows
Mantaro Koichi was
50 in Only the Cat Knows
as 'Masaki'.
Fri, May 10 2019
Poster of A Long Goodbye
A Long Goodbye
Mantaro Koichi was
50 in A Long Goodbye
Tue, Mar 26 2019
Poster of For Love's Sake
For Love's Sake
Mantaro Koichi was
49 in For Love's Sake
Sat, Oct 20 2018
Poster of Perfect World
Perfect World
Mantaro Koichi was
49 in Perfect World
Fri, Oct 05 2018
Poster of Neck Bowed in the Rain
Neck Bowed in the Rain
Mantaro Koichi was
49 in Neck Bowed in the Rain
as 'Jingoro Gyoda'.
Sat, Jul 21 2018
Poster of My Friend "A"
My Friend "A"
Mantaro Koichi was
49 in My Friend "A"
as 'President Kawashima'.
Fri, May 25 2018
Poster of Colors of Wind
Colors of Wind
Mantaro Koichi was
48 in Colors of Wind
as 'Kitta'.
Fri, Jan 26 2018
Poster of Tales of the Bizarre: 2017 Fall Special
Tales of the Bizarre: 2017 Fall Special
Mantaro Koichi was
48 in Tales of the Bizarre: 2017 Fall Special
Sat, Oct 14 2017
Poster of Care Nin
Care Nin
Mantaro Koichi was
48 in Care Nin
as 'Hirofumi Kudo'.
Sat, Jun 17 2017
Poster of Radiance
Radiance
Mantaro Koichi was
48 in Radiance
as 'Sano'.
Sat, May 27 2017
Poster of Error
Error
Mantaro Koichi was
48 in Error
Wed, May 10 2017
Poster of Blossoming Into a Family
Blossoming Into a Family
Mantaro Koichi was
47 in Blossoming Into a Family
as 'Seishiro Ishikawa'.
Sat, Jan 21 2017
Poster of Prison Gate Island
Prison Gate Island
Mantaro Koichi was
47 in Prison Gate Island
as 'Inspector Isokawa'.
Sat, Nov 19 2016
Poster of Death on Gokumon Island
Death on Gokumon Island
Mantaro Koichi was
47 in Death on Gokumon Island
as 'Inspector Isokawa'.
Sat, Nov 19 2016
Poster of The Tokyo Wind Orchestra
The Tokyo Wind Orchestra
Mantaro Koichi was
47 in The Tokyo Wind Orchestra
as 'Kazuya Tachibana'.
Sat, Nov 12 2016
Poster of Sniper
Sniper
Mantaro Koichi was
47 in Sniper
as 'Satoru Kanbe'.
Sun, Oct 02 2016
Poster of Somebody's Xylophone
Somebody's Xylophone
Mantaro Koichi was
47 in Somebody's Xylophone
Sat, Sep 10 2016
Poster of Before a Falling Star Fades Away
Before a Falling Star Fades Away
Mantaro Koichi was
46 in Before a Falling Star Fades Away
as '奈緒子の父'.
Sat, Nov 21 2015
Poster of Ghost Theater
Ghost Theater
Mantaro Koichi was
46 in Ghost Theater
as 'Gota Nishikino'.
Sat, Nov 21 2015
Poster of Gassoh
Gassoh
Mantaro Koichi was
46 in Gassoh
Sat, Sep 26 2015
Poster of Till Death Do Us What?
Till Death Do Us What?
Mantaro Koichi was
46 in Till Death Do Us What?
as 'Yamashita'.
Sat, May 30 2015
Poster of Scarecrow and Racket: Aki and Tamako’s Summer Vacation
Scarecrow and Racket: Aki and Tamako’s Summer Vacation
Mantaro Koichi was
46 in Scarecrow and Racket: Aki and Tamako’s Summer Vacation
as 'Masaya Odagiri'.
Sat, Apr 04 2015
Poster of Miracle: Devil Claus' Love and Magic
Miracle: Devil Claus' Love and Magic
Mantaro Koichi was
45 in Miracle: Devil Claus' Love and Magic
as 'Natsuki Kurita'.
Sat, Nov 22 2014
Poster of A Samurai Chronicle
A Samurai Chronicle
Mantaro Koichi was
45 in A Samurai Chronicle
Sat, Oct 04 2014
Poster of Rurouni Kenshin Part III: The Legend Ends
Rurouni Kenshin Part III: The Legend Ends
Mantaro Koichi was
45 in Rurouni Kenshin Part III: The Legend Ends
as 'Toshiyoshi Kawaji'.
Sat, Sep 13 2014
Poster of Rurouni Kenshin Part II: Kyoto Inferno
Rurouni Kenshin Part II: Kyoto Inferno
Mantaro Koichi was
45 in Rurouni Kenshin Part II: Kyoto Inferno
as 'Toshiyoshi Kawaji'.
Fri, Aug 01 2014
Poster of Tokyo Refugees
Tokyo Refugees
Mantaro Koichi was
45 in Tokyo Refugees
as 'Kobayakawa'.
Sat, Feb 22 2014
Poster of The End of Summer
The End of Summer
Mantaro Koichi was
44 in The End of Summer
Sat, Aug 31 2013
Poster of The Sparkling Amber
The Sparkling Amber
Mantaro Koichi was
44 in The Sparkling Amber
Sat, Aug 24 2013
Poster of Piece: Fragments of a Memory
Piece: Fragments of a Memory
Mantaro Koichi was
43 in Piece: Fragments of a Memory
as 'Tojiro Tsuda'.
Sat, Sep 01 2012
Poster of Pink Subaru
Pink Subaru
Mantaro Koichi was
42 in Pink Subaru
as 'Zen'.
Sat, Apr 16 2011
Poster of Osaka Love & Soul
Osaka Love & Soul
Mantaro Koichi was
41 in Osaka Love & Soul
Sat, Nov 06 2010
Poster of Perfect Blue
Perfect Blue
Mantaro Koichi was
41 in Perfect Blue
Sat, Sep 18 2010
Poster of Ai wa mieru: Zenmô fûfu ni yadotta chiisana inochi
Ai wa mieru: Zenmô fûfu ni yadotta chiisana inochi
Mantaro Koichi was
41 in Ai wa mieru: Zenmô fûfu ni yadotta chiisana inochi
Fri, Sep 03 2010
Poster of The Summit: A Chronicle Of Stones to Serenity
The Summit: A Chronicle Of Stones to Serenity
Mantaro Koichi was
40 in The Summit: A Chronicle Of Stones to Serenity
as 'Kinjiro Okano'.
Sat, Jun 20 2009
Poster of The Vulture
The Vulture
Mantaro Koichi was
40 in The Vulture
Sat, Jun 06 2009
Poster of Walking My Life
Walking My Life
Mantaro Koichi was
38 in Walking My Life
as 'Wakaizumi'.
Sat, Oct 27 2007
Poster of Sixteen
Sixteen
Mantaro Koichi was
38 in Sixteen
as 'Sawazaki'.
Sat, May 26 2007
Poster of Reincarnation
Reincarnation
Mantaro Koichi was
36 in Reincarnation
as 'Yamanaka Producer'.
Sat, Jan 07 2006
Poster of Ichigo Chips
Ichigo Chips
Mantaro Koichi was
36 in Ichigo Chips
as 'Sakai'.
Sat, Feb 19 2005
Poster of The Hidden Blade
The Hidden Blade
Mantaro Koichi was
35 in The Hidden Blade
Sat, Oct 30 2004
Poster of Locomotive Teacher
Locomotive Teacher
Mantaro Koichi was
35 in Locomotive Teacher
Sat, Jul 31 2004
Poster of No-Pants Girls: Movie Box-ing2
No-Pants Girls: Movie Box-ing2
Mantaro Koichi was
35 in No-Pants Girls: Movie Box-ing2
Fri, Jun 04 2004
Poster of Antenna
Antenna
Mantaro Koichi was
34 in Antenna
as 'Shigenobu'.
Sat, Jan 10 2004
Poster of Karaoke Terror
Karaoke Terror
Mantaro Koichi was
34 in Karaoke Terror
Sat, Nov 08 2003
Poster of Concent
Concent
Mantaro Koichi was
32 in Concent
as 'Yamagishi'.
Sat, Feb 02 2002
Poster of Platonic Sex
Platonic Sex
Mantaro Koichi was
32 in Platonic Sex
Sat, Oct 20 2001
Poster of Stake Out
Stake Out
Mantaro Koichi was
31 in Stake Out
as 'Tasuku Yoshioka'.
Sat, Jan 20 2001
Poster of Samurai Shodown 2
Samurai Shodown 2
Mantaro Koichi was
30 in Samurai Shodown 2
as 'Galford'.
Fri, Jun 25 1999

TV Shows (Acting Roles)

Sorted by Release Date
Ages in TV shows are based off the first air date and may not be accurate. View individual episode details for accurate ages
Poster of Unmet: Diary of a Neurosurgeon
Unmet: Diary of a Neurosurgeon
Mantaro Koichi was
55+ in Unmet: Diary of a Neurosurgeon
as 'Takami Takeshi'.
First Air Date
Mon, Apr 15 2024
Poster of The Inugami Family
The Inugami Family
Mantaro Koichi was
54+ in The Inugami Family
as 'Isokawa'.
First Air Date
Sat, Apr 22 2023
Poster of Wave, Listen to Me!
Wave, Listen to Me!
Mantaro Koichi was
54+ in Wave, Listen to Me!
as 'Kureko Katsumi'.
First Air Date
Fri, Apr 21 2023
Poster of The Files of Young Kindaichi
The Files of Young Kindaichi
Mantaro Koichi was
53+ in The Files of Young Kindaichi
as 'Ken Izumaru'.
First Air Date
Sun, Apr 24 2022
Poster of What Do You Really Do About Love?
What Do You Really Do About Love?
Mantaro Koichi was
53+ in What Do You Really Do About Love?
as 'Jiro Okashita'.
First Air Date
Mon, Apr 18 2022
Poster of Evil God's Balance Public Security Analysis Team
Evil God's Balance Public Security Analysis Team
Mantaro Koichi was
52+ in Evil God's Balance Public Security Analysis Team
as 'Shuzo Kunieda'.
First Air Date
Sun, Feb 13 2022
Poster of Two People Who Can't Fall in Love
Two People Who Can't Fall in Love
Mantaro Koichi was
52+ in Two People Who Can't Fall in Love
First Air Date
Mon, Jan 10 2022
Poster of The Agent Family
The Agent Family
Mantaro Koichi was
52+ in The Agent Family
as 'Toshio Sato'.
First Air Date
Mon, Mar 22 2021
Poster of The Sun Does Not Move
The Sun Does Not Move
Mantaro Koichi was
51+ in The Sun Does Not Move
as 'Miura'.
First Air Date
Sun, May 24 2020
Poster of Gourmet Detective Goro Akechi
Gourmet Detective Goro Akechi
Mantaro Koichi was
51+ in Gourmet Detective Goro Akechi
as 'Yasuya Dateh'.
First Air Date
Sun, Apr 12 2020
Poster of 頭取 野崎修平
頭取 野崎修平
Mantaro Koichi was
50+ in 頭取 野崎修平
as 'Ryoma Kashiwagi(柏木 竜馬)'.
First Air Date
Sun, Jan 19 2020
Poster of Sherlock: Untold Stories
Sherlock: Untold Stories
Mantaro Koichi was
50+ in Sherlock: Untold Stories
as 'Takahisa Inui(乾 貴久)'.
First Air Date
Mon, Oct 07 2019
Poster of Voice
Voice
Mantaro Koichi was
50+ in Voice
as 'Kenichi Tadokoro'.
First Air Date
Sat, Jul 13 2019
Poster of Innocence, Fight Against False Charges
Innocence, Fight Against False Charges
Mantaro Koichi was
49+ in Innocence, Fight Against False Charges
as 'Rintaro Ibusuki'.
First Air Date
Sat, Jan 19 2019
Poster of Suits
Suits
Mantaro Koichi was
49+ in Suits
as 'Yukio Karashima'.
First Air Date
Mon, Oct 08 2018
Poster of White and Yellow ~My Pancake Story from Hawaii~
White and Yellow ~My Pancake Story from Hawaii~
Mantaro Koichi was
49+ in White and Yellow ~My Pancake Story from Hawaii~
as 'Sawano Kyoji [Nami's uncle]'.
First Air Date
Wed, Feb 28 2018
Poster of Kiss that Kills
Kiss that Kills
Mantaro Koichi was
48+ in Kiss that Kills
as 'Gunji Arai'.
First Air Date
Sun, Jan 07 2018
Poster of Nozaki Shuhei - Auditor of Bank
Nozaki Shuhei - Auditor of Bank
Mantaro Koichi was
48+ in Nozaki Shuhei - Auditor of Bank
as 'Ryoma Kashiwagi'.
First Air Date
Thu, Jan 04 2018
Poster of FACE - Cyber Hanzai Tokusouhan
FACE - Cyber Hanzai Tokusouhan
Mantaro Koichi was
48+ in FACE - Cyber Hanzai Tokusouhan
First Air Date
Tue, Jul 11 2017
Poster of Akira and Akira
Akira and Akira
Mantaro Koichi was
48+ in Akira and Akira
First Air Date
Sun, Jul 09 2017
Poster of CRISIS: Special Security Squad
CRISIS: Special Security Squad
Mantaro Koichi was
48+ in CRISIS: Special Security Squad
First Air Date
Tue, Apr 11 2017
Poster of Destiny-Like Love
Destiny-Like Love
Mantaro Koichi was
47+ in Destiny-Like Love
as 'Fujii Yoji'.
First Air Date
Fri, Sep 23 2016
Poster of Lost ID
Lost ID
Mantaro Koichi was
47+ in Lost ID
as 'Baba'.
First Air Date
Sun, Jul 17 2016
Poster of Moribito: Guardian of the Spirit
Moribito: Guardian of the Spirit
Mantaro Koichi was
47+ in Moribito: Guardian of the Spirit
as 'The Cooles'.
First Air Date
Sat, Mar 19 2016
Poster of Nobunaga Concerto
Nobunaga Concerto
Mantaro Koichi was
45+ in Nobunaga Concerto
as 'Yoshikage Asakura'.
First Air Date
Mon, Oct 13 2014
Poster of Shinigami-kun
Shinigami-kun
Mantaro Koichi was
45+ in Shinigami-kun
First Air Date
Fri, Apr 18 2014
Poster of Hanasaki Mai Speaks Out
Hanasaki Mai Speaks Out
Mantaro Koichi was
45+ in Hanasaki Mai Speaks Out
as 'Takahiko Isobe(磯部 隆彦)'.
First Air Date
Wed, Apr 16 2014
Poster of The Hours of My Life
The Hours of My Life
Mantaro Koichi was
44+ in The Hours of My Life
as 'Akio Sawada'.
First Air Date
Wed, Jan 08 2014
Poster of Kurokouchi
Kurokouchi
Mantaro Koichi was
44+ in Kurokouchi
as 'Ushii Takeshi'.
First Air Date
Fri, Oct 11 2013
Poster of Wonderful Single Life
Wonderful Single Life
Mantaro Koichi was
43+ in Wonderful Single Life
as 'Shuji Tanigawa'.
First Air Date
Thu, Oct 11 2012
Poster of CSI: Crime Scene Talks
CSI: Crime Scene Talks
Mantaro Koichi was
42+ in CSI: Crime Scene Talks
First Air Date
Wed, Apr 13 2011
Poster of HUNT - Tax Investigation Officer
HUNT - Tax Investigation Officer
Mantaro Koichi was
41+ in HUNT - Tax Investigation Officer
as 'Shiro Kume'.
First Air Date
Thu, Oct 21 2010
Poster of Steel Frame
Steel Frame
Mantaro Koichi was
41+ in Steel Frame
First Air Date
Sat, Jul 03 2010
Poster of Azamijô no lullaby
Azamijô no lullaby
Mantaro Koichi was
41+ in Azamijô no lullaby
First Air Date
Wed, Apr 21 2010
Poster of Bungo Japanese Literature Cinema
Bungo Japanese Literature Cinema
Mantaro Koichi was
41+ in Bungo Japanese Literature Cinema
as 'Muramatsu'.
First Air Date
Mon, Feb 15 2010
Poster of Ryōmaden
Ryōmaden
Mantaro Koichi was
40+ in Ryōmaden
First Air Date
Sun, Jan 03 2010
Poster of MR.BRAIN
MR.BRAIN
Mantaro Koichi was
40+ in MR.BRAIN
First Air Date
Sat, May 23 2009
Poster of Attention Please
Attention Please
Mantaro Koichi was
37+ in Attention Please
as 'Makoto Watanabe'.
First Air Date
Tue, Apr 18 2006
Poster of Angels with Broken Wings
Angels with Broken Wings
Mantaro Koichi was
37+ in Angels with Broken Wings
as 'Sugawara'.
First Air Date
Mon, Feb 27 2006
Poster of Umanohone: The Legendary Sword
Umanohone: The Legendary Sword
Mantaro Koichi was
36+ in Umanohone: The Legendary Sword
First Air Date
Fri, Aug 26 2005
Poster of Matrilineal Family
Matrilineal Family
Mantaro Koichi was
36+ in Matrilineal Family
First Air Date
Thu, Jul 07 2005
Poster of AIBOU: Tokyo Detective Duo
AIBOU: Tokyo Detective Duo
Mantaro Koichi was
33+ in AIBOU: Tokyo Detective Duo
First Air Date
Wed, Oct 09 2002
Poster of Hero
Hero
Mantaro Koichi was
31+ in Hero
as 'Yagi'.
First Air Date
Mon, Jan 08 2001
Poster of Samurai Spirits 2: Asura Zanmaden
Samurai Spirits 2: Asura Zanmaden
Mantaro Koichi was
30+ in Samurai Spirits 2: Asura Zanmaden
as 'Galford'.
First Air Date
Fri, Jun 25 1999
Poster of Emergency Room 24 Hours
Emergency Room 24 Hours
Mantaro Koichi was
29+ in Emergency Room 24 Hours
as 'Manabu Hibiya(日比谷 学)'.
First Air Date
Tue, Jan 05 1999
Poster of The Files of the Young Kindaichi
The Files of the Young Kindaichi
Mantaro Koichi was
26+ in The Files of the Young Kindaichi
as 'Ken Izumaru'.
First Air Date
Sat, Jul 15 1995