Known For
Koji Seto Filmography
| 2026 | |
| 2026 | 再会～Silent Truth～ (TV Series) · as Keisuke Kiyohara |
| 2026 | 119 Emergency Call 2026 YOKOHAMA BLACKOUT · as Kaneshita Mutsuo |
| 2025 | Dollhouse · as Tadahiko Suzuki |
| 2025 | 119 Emergency Call (TV Series) · as Mutsuo Kaneshita |
| 2024 | All About Suomi · as Tomio Koiso |
| 2024 | Worlds Apart · as Shingo Kasamachi |
| 2024 | Kururi: Who’s in Love with Me? (TV Series) · as Nishi Kotaro |
| 2024 | Hospital Police Force (TV Series) · as Shunsuke Sakakibara |
| 2023 | Maboroshi · as Akimune Kikuiri (voice) |
| 2022 | The Invert Mystery of Jozuka Hisui (TV Series) · as Siro Kogetsu |
| 2022 | Invert: Jozuka Hisui Toujoshu (TV Series) · as Shiro Kogetsu |
| 2022 | One Person Who Fell in Love: Stendhal's Love Theory (TV Series) · as Ryosuke Suzuki |
| 2022 | Ai nanoni · as Koji Tada |
| 2022 | The Confidence Man JP: Episode of the Hero · as Marcel Marimura |
| 2021 | Lupin's Daughter: The Movie · as Kazuma Sakuraba |
| 2020 | Stigmatized Properties · as Taisa Nakai |
| 2020 | My Housekeeper Nagisa-san (TV Series) · as Yūta Tadokoro |
| 2019 | No Longer Human · as Harube Ima |
| 2019 | Daughter of Lupin (TV Series) · as Sakuraba Kazuma |
| 2019 | Digital Tattoo (TV Series) |
| 2019 | Perfect World (2019) (TV Series) · as Hirotaka Koreeda |
| 2018 | Kamen Rider Heisei Generations Forever · as Kamen Rider Kiva (archive Voice) |
| 2018 | Manpuku (TV Series) · as Shigeru Kanbe |
| 2018 | Asako I & II · as Kushihashi |
| 2018 | An Invisible Cradle (TV Series) · as Tomohiro Yui |
| 2018 | Princess Jellyfish (2018) (TV Series) · as Kuranosuke Koibuchi |
| 2017 | Mixed Doubles · as Akihiko Ejima |
| 2017 | My High School Business (TV Series) · as Tomokazu Shimazu |
| 2017 | Narratage · as Keita Miyazawa |
| 2017 | Bushimeshi!: The Samurai Cook (TV Series) · as Sakai Banshiro |
| 2016 | |
| 2016 | Hope: Expectation Zero's New Employee (TV Series) · as Shinji Kiriake |
| 2016 | |
| 2015 | Sunshiny Asa (TV Series) · as Izumi Narisawa |
| 2015 | Gassô · as Masanosuke Yoshimori |
| 2015 | Age Harassment (TV Series) · as Masaru Igawa |
| 2015 | Mother Game (TV Series) · as Shinnosuke Naraoka |
| 2015 | Burning Flower (TV Series) · as Toshimaro Yoshida |
| 2014 | Â, rabuhoteru gôka-ban (TV Series) |
| 2014 | Watashi no Hawaii no arukikata · as Tsutomu Kamada |
| 2014 | Haganai: I Don't Have Many Friends · as Kodaka Hasegawa |
| 2014 | Lost Days (TV Series) · as Shino Yuta |
| 2013 | Judge · as Wolf |
| 2013 | Link (TV Series) · as Cast |
| 2013 | Sadako 2 3D · as Takanori Ando |
| 2012 | TOKYO Airport -Air Traffic Service Department- (TV Series) · as Yuji Yamashita |
| 2012 | Sleeping Jukujo (TV Series) · as Yusuke Takaoka |
| 2012 | Sadako 3D · as Takanori Ando |
| 2012 | Teen Court: 10-dai Saiban (TV Series) · as Saburo Takada |
| 2011 | Kurumi no Heya (TV Series) · as Mitamura Kentaro |
| 2011 | Drucker in the Dugout · as Keiichirou Asano |
| 2011 | Yotsuba Jinja Ura Kagyo Shitsuren Hoken ~Kokuraseya~ (TV Series) · as Sho Kinoshita |
| 2011 | Runway Beat · as Biito Mizorogi |
| 2011 | Gou (TV Series) · as Ranmaru Mori |
| 2010 | Nasake no Onna (TV Series) · as Tomoya Akagawa |
| 2010 | Tumbling (TV Series) · as Takenaka Yuta |
| 2009 | Kamen Rider Movie War 2010: Kamen Rider vs. Kamen Rider W & Decade · as Wataru Kurenai / Kamen Rider Kiva |
| 2009 | Otomen (TV Series) · as Ariake Yamato |
| 2009 | Ju-on: Black Ghost · as Tetsuya |
| 2009 | The Guys of My House (TV Series) · as Satoru Okura |
| 2009 | Kamen Rider Decade (TV Series) · as Kamen Rider Kiva |
| 2008 | Kamen Rider Kiva: King of the Castle in the Demon World · as Wataru Kurenai / Kamen Rider Kiva |
| 2008 | Sky of Love (TV Series) · as Hiroki Sakurai |
| 2008 | Kamen Rider Den-O & Kiva: Climax Deka · as Wataru Kurenai / Kamen Rider Kiva |
| 2008 | Kamen Rider Kiva (TV Series) · as 红渡 |
| 2008 | SAITOU san (TV Series) · as Cast |
| 2007 | Wild Mom (TV Series) · as Naoya Abe |
| 2007 | |
| 2007 | |
| 1971 | Kamen Rider (TV Series) · as Wataru Kurenai / Kamen Rider Kiva |
| 2008 | VS Arashi (TV Series) · as Self |