is a Japanese actor. He is represented by Tristone Entertainment.

Personal life On July 8, 2024, Mamiya announced his marriage to his non-celebrity partner, whom he has been dating for quite some time. Mamiya announced through his agency that his wife had given birth to their first child on May 2, 2025.

Filmography TV dramas Year Title Role Notes 2008 Scrap Teacher Shotaro Hioki 2013 Public Affairs Office in the Sky Fleur Vocal Episode 6 2014 Nobunaga Concerto Saitō Tatsuoki Episode 4 Time Taxi Tatsuya Episode 2 Water Polo Yankees Ryo Chiaki Baseball Brainiacs Kei Okaori 2015 The Girl's Speech Natsuki Sudo 2016 Hayako-sensei, Kekkon suru tte Hontōdesuka? Minatozuke The Kodai Family Shigemasa "Masao" Kōdai Jr. Lead role Mr. Nietzsche in the Convenience Store Chie Nii (Mr. Nietzsche) Lead role 2017 You Don't Know Gunma Yet Noriko Shinko Lead role 2018 BG Personal Bodyguard Seitarō Sawaguchi Half Blue Sky Ryōji Moriyama Asadora 2020–21 Awaiting Kirin Akechi Hidemitsu Taiga drama 2021Oh My Boss! Love is a Separate VolumeRyota Nakazawa2022Fight SongHaruki AshidaNanba MG-5Tsuyoshi NanbaLead role2023Cinderella of MidsummerKento MizushimaLead role2024Acma: GameTeruaki OdaLead role2026Plastic BeautyRui KomiyaBrothers in ArmsSaizoTaiga drama

Films Year Title Role Notes 2016 Lychee Light Club Jaibo The Kodai Family Hayato Hakadai Ganguro Gals Riot Takahiro Shibata Ushijima the Loan Shark: The Final Mizoido Sanzo 2017 Teiichi: Battle of Supreme High Himuro Roland Tori Girl Daisuke Sakamoto Death Row Family Takanori Kubizuka Lead role You Still Don't Get Gunma Noriko Shinko Lead role 2018 Impossibility Defense Takeru Kawabata Eating Women Shinozaki 2019 Hot Gimmick: Girl Meets Boy Shinogu Narita Fly Me to the Saitama He Won't Kill, She Won't Die Rei Kosaka Lead role 2020 Shape of Red Shin Muranushi 2021 Tokyo Revengers Tetta Kisaki 2022 The Broken Commandment Ushimatsu Lead role 2023 Blue Giant Yukinori Sawabe (voice) Tokyo Revengers 2: Bloody Halloween Part 1 Tetta Kisaki Tokyo Revengers 2: Bloody Halloween Part 2 Tetta Kisaki G-Men Tsuyoshi Nanba 2024 In an Isolated Cottage on a Snowy Mountain Yūichi Honda The Floor Plan Ame-otoko/Amemiya Lead role Acma:Game: The Final Key Teruaki Oda Lead role 2025 Under Ninja Kato Babanba Banban Vampire Gangster Dive in Wonderland Ko Urai (voice) 2026 Street Kingdom Deep Bad Lieutenant: Tokyo American-Japanese film

Stage production Year Title Role Notes 2013 Legend of the Galactic Heroes: Uijin: Mō hitotsu no Teki Reinhard von Müsel

Dubbing Year Title Role Dub for Notes 2016 War & Peace Andrei Volkonskii James Norton

Awards and nominations +Year presented, name of the award ceremony, category, nominee(s) of the award, and the result of the nomination Year Award ceremony Category Nominated work(s) Result 202235th Nikkan Sports Film AwardsBest ActorThe Broken Commandment202347th Elan d'or AwardsNewcomer of the YearHimself

References

External links – Official profile by his affiliated office