Movies (Acting Roles)
We're Both Grooms
Mantaro Koichi was 53 in We're Both Grooms as 'Seto Takeshi'.Movie Released: Sun, Mar 13 2022
The Sunday Runoff
Mantaro Koichi was 52 in The Sunday Runoff Movie Released: Fri, Jan 07 2022
Memory's Technique
Mantaro Koichi was 51 in Memory's Technique as 'Kazuno Tadashi'.Movie Released: Fri, Nov 27 2020
One Left Hand Shot
Mantaro Koichi was 51 in One Left Hand Shot Movie Released: Sat, Mar 14 2020
Fukushima 50
Mantaro Koichi was 51 in Fukushima 50 as 'Chairman of Japanese Nuclear Safety Commission'.Movie Released: Fri, Mar 06 2020
Mellow
Mantaro Koichi was 50 in Mellow as 'Furukawa Sakon'.Movie Released: Fri, Jan 17 2020
Yatsuhakamura
Mantaro Koichi was 50 in Yatsuhakamura as '磯川警部'.Movie Released: Sat, Oct 12 2019
Only the Cat Knows
Mantaro Koichi was 50 in Only the Cat Knows as 'Masaki'.Movie Released: Fri, May 10 2019
A Long Goodbye
Mantaro Koichi was 50 in A Long Goodbye Movie Released: Tue, Mar 26 2019
For Love's Sake
Mantaro Koichi was 49 in For Love's Sake Movie Released: Sat, Oct 20 2018
Perfect World
Mantaro Koichi was 49 in Perfect World Movie Released: Fri, Oct 05 2018
Neck Bowed in the Rain
Mantaro Koichi was 49 in Neck Bowed in the Rain as 'Jingoro Gyoda'.Movie Released: Sat, Jul 21 2018
My Friend "A"
Mantaro Koichi was 49 in My Friend "A" as 'President Kawashima'.Movie Released: Fri, May 25 2018
Colors of Wind
Mantaro Koichi was 48 in Colors of Wind as 'Kitta'.Movie Released: Fri, Jan 26 2018
Care Nin
Mantaro Koichi was 48 in Care Nin as 'Hirofumi Kudo'.Movie Released: Sat, Jun 17 2017
Radiance
Mantaro Koichi was 48 in Radiance as 'Sano'.Movie Released: Sat, May 27 2017
Error
Mantaro Koichi was 48 in Error Movie Released: Wed, May 10 2017
Blossoming Into a Family
Mantaro Koichi was 47 in Blossoming Into a Family as 'Seishiro Ishikawa'.Movie Released: Sat, Jan 21 2017
Prison Gate Island
Mantaro Koichi was 47 in Prison Gate Island as 'Inspector Isokawa'.Movie Released: Sat, Nov 19 2016
Death on Gokumon Island
Mantaro Koichi was 47 in Death on Gokumon Island as 'Inspector Isokawa'.Movie Released: Sat, Nov 19 2016
The Tokyo Wind Orchestra
Mantaro Koichi was 47 in The Tokyo Wind Orchestra as 'Kazuya Tachibana'.Movie Released: Sat, Nov 12 2016
Sniper
Mantaro Koichi was 47 in Sniper as 'Satoru Kanbe'.Movie Released: Sun, Oct 02 2016
Ghost Theater
Mantaro Koichi was 46 in Ghost Theater as 'Gota Nishikino'.Movie Released: Sat, Nov 21 2015
Gassoh
Mantaro Koichi was 46 in Gassoh Movie Released: Sat, Sep 26 2015
Till Death Do Us What?
Mantaro Koichi was 46 in Till Death Do Us What? as 'Yamashita'.Movie Released: Sat, May 30 2015
A Samurai Chronicle
Mantaro Koichi was 45 in A Samurai Chronicle Movie Released: Sat, Oct 04 2014
Tokyo Refugees
Mantaro Koichi was 45 in Tokyo Refugees as 'Kobayakawa'.Movie Released: Sat, Feb 22 2014
The End of Summer
Mantaro Koichi was 44 in The End of Summer Movie Released: Sat, Aug 31 2013
The Sparkling Amber
Mantaro Koichi was 44 in The Sparkling Amber Movie Released: Sat, Aug 24 2013
Pink Subaru
Mantaro Koichi was 42 in Pink Subaru as 'Zen'.Movie Released: Sat, Apr 16 2011
Osaka Love & Soul
Mantaro Koichi was 41 in Osaka Love & Soul Movie Released: Sat, Nov 06 2010
Perfect Blue
Mantaro Koichi was 41 in Perfect Blue Movie Released: Sat, Sep 18 2010
The Vulture
Mantaro Koichi was 40 in The Vulture Movie Released: Sat, Jun 06 2009
Walking My Life
Mantaro Koichi was 38 in Walking My Life as 'Wakaizumi'.Movie Released: Sat, Oct 27 2007
Sixteen
Mantaro Koichi was 38 in Sixteen as 'Sawazaki'.Movie Released: Sat, May 26 2007
Reincarnation
Mantaro Koichi was 36 in Reincarnation as 'Yamanaka Producer'.Movie Released: Sat, Jan 07 2006
Ichigo Chips
Mantaro Koichi was 36 in Ichigo Chips as 'Sakai'.Movie Released: Sat, Feb 19 2005
The Hidden Blade
Mantaro Koichi was 35 in The Hidden Blade Movie Released: Sat, Oct 30 2004
Locomotive Teacher
Mantaro Koichi was 35 in Locomotive Teacher Movie Released: Sat, Jul 31 2004
Antenna
Mantaro Koichi was 34 in Antenna as 'Shigenobu'.Movie Released: Sat, Jan 10 2004
Karaoke Terror
Mantaro Koichi was 34 in Karaoke Terror Movie Released: Sat, Nov 08 2003
Concent
Mantaro Koichi was 32 in Concent as 'Yamagishi'.Movie Released: Sat, Feb 02 2002
Platonic Sex
Mantaro Koichi was 32 in Platonic Sex Movie Released: Sat, Oct 20 2001
Stake Out
Mantaro Koichi was 31 in Stake Out as 'Tasuku Yoshioka'.Movie Released: Sat, Jan 20 2001
Samurai Shodown 2
Mantaro Koichi was 30 in Samurai Shodown 2 as 'Galford'.Movie Released: Fri, Jun 25 1999
TV Shows (Acting Roles)
Ages in TV shows are based off the first air date and may not be accurate. View individual episode details for accurate ages
Unmet: Diary of a Neurosurgeon
Mantaro Koichi was 55+ in Unmet: Diary of a Neurosurgeon as 'Takami Takeshi'.TV Show Released: First Air Date
Mon, Apr 15 2024
The Inugami Family
Mantaro Koichi was 54+ in The Inugami Family as 'Isokawa'.TV Show Released: First Air Date
Sat, Apr 22 2023
Wave, Listen to Me!
Mantaro Koichi was 54+ in Wave, Listen to Me! as 'Kureko Katsumi'.TV Show Released: First Air Date
Fri, Apr 21 2023
The Files of Young Kindaichi
Mantaro Koichi was 53+ in The Files of Young Kindaichi as 'Ken Izumaru'.TV Show Released: First Air Date
Sun, Apr 24 2022
The Agent Family
Mantaro Koichi was 52+ in The Agent Family as 'Toshio Sato'.TV Show Released: First Air Date
Mon, Mar 22 2021
The Sun Does Not Move
Mantaro Koichi was 51+ in The Sun Does Not Move as 'Miura'.TV Show Released: First Air Date
Sun, May 24 2020
Gourmet Detective Goro Akechi
Mantaro Koichi was 51+ in Gourmet Detective Goro Akechi as 'Yasuya Dateh'.TV Show Released: First Air Date
Sun, Apr 12 2020
頭取 野崎修平
Mantaro Koichi was 50+ in 頭取 野崎修平 as 'Ryoma Kashiwagi（柏木 竜馬）'.TV Show Released: First Air Date
Sun, Jan 19 2020
Sherlock: Untold Stories
Mantaro Koichi was 50+ in Sherlock: Untold Stories as 'Takahisa Inui（乾 貴久）'.TV Show Released: First Air Date
Mon, Oct 07 2019
Voice
Mantaro Koichi was 50+ in Voice as 'Kenichi Tadokoro'.TV Show Released: First Air Date
Sat, Jul 13 2019
Suits
Mantaro Koichi was 49+ in Suits as 'Yukio Karashima'.TV Show Released: First Air Date
Mon, Oct 08 2018
Kiss that Kills
Mantaro Koichi was 48+ in Kiss that Kills as 'Gunji Arai'.TV Show Released: First Air Date
Sun, Jan 07 2018
Nozaki Shuhei - Auditor of Bank
Mantaro Koichi was 48+ in Nozaki Shuhei - Auditor of Bank as 'Ryoma Kashiwagi'.TV Show Released: First Air Date
Thu, Jan 04 2018
Akira and Akira
Mantaro Koichi was 48+ in Akira and Akira TV Show Released: First Air Date
Sun, Jul 09 2017
Destiny-Like Love
Mantaro Koichi was 47+ in Destiny-Like Love as 'Fujii Yoji'.TV Show Released: First Air Date
Fri, Sep 23 2016
Lost ID
Mantaro Koichi was 47+ in Lost ID as 'Baba'.TV Show Released: First Air Date
Sun, Jul 17 2016
Nobunaga Concerto
Mantaro Koichi was 45+ in Nobunaga Concerto as 'Yoshikage Asakura'.TV Show Released: First Air Date
Mon, Oct 13 2014
Shinigami-kun
Mantaro Koichi was 45+ in Shinigami-kun TV Show Released: First Air Date
Fri, Apr 18 2014
Hanasaki Mai Speaks Out
Mantaro Koichi was 45+ in Hanasaki Mai Speaks Out as 'Takahiko Isobe（磯部 隆彦）'.TV Show Released: First Air Date
Wed, Apr 16 2014
The Hours of My Life
Mantaro Koichi was 44+ in The Hours of My Life as 'Akio Sawada'.TV Show Released: First Air Date
Wed, Jan 08 2014
Kurokouchi
Mantaro Koichi was 44+ in Kurokouchi as 'Ushii Takeshi'.TV Show Released: First Air Date
Fri, Oct 11 2013
Wonderful Single Life
Mantaro Koichi was 43+ in Wonderful Single Life as 'Shuji Tanigawa'.TV Show Released: First Air Date
Thu, Oct 11 2012
CSI: Crime Scene Talks
Mantaro Koichi was 42+ in CSI: Crime Scene Talks TV Show Released: First Air Date
Wed, Apr 13 2011
Steel Frame
Mantaro Koichi was 41+ in Steel Frame TV Show Released: First Air Date
Sat, Jul 03 2010
Azamijô no lullaby
Mantaro Koichi was 41+ in Azamijô no lullaby TV Show Released: First Air Date
Wed, Apr 21 2010
Ryōmaden
Mantaro Koichi was 40+ in Ryōmaden TV Show Released: First Air Date
Sun, Jan 03 2010
MR.BRAIN
Mantaro Koichi was 40+ in MR.BRAIN TV Show Released: First Air Date
Sat, May 23 2009
Attention Please
Mantaro Koichi was 37+ in Attention Please as 'Makoto Watanabe'.TV Show Released: First Air Date
Tue, Apr 18 2006
Angels with Broken Wings
Mantaro Koichi was 37+ in Angels with Broken Wings as 'Sugawara'.TV Show Released: First Air Date
Mon, Feb 27 2006
Matrilineal Family
Mantaro Koichi was 36+ in Matrilineal Family TV Show Released: First Air Date
Thu, Jul 07 2005
Hero
Mantaro Koichi was 31+ in Hero as 'Yagi'.TV Show Released: First Air Date
Mon, Jan 08 2001
Emergency Room 24 Hours
Mantaro Koichi was 29+ in Emergency Room 24 Hours as 'Manabu Hibiya（日比谷 学）'.TV Show Released: First Air Date
Tue, Jan 05 1999
