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Koji Seki
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Koji Seki

Actor

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1982Born, Saitama
39Credits

Koji Seki (関 幸司, Seki Kōji, born November 25, 1982) is a Japanese voice actor from Saitama Prefecture who is affiliated with Raccoon Dog. He graduated from Pro-Fit Voice Actor Training School and joined the agency Pro-Fit. On April 1, 2022, he transferred to Raccoon Dog.

Known for

JUJUTSU KAISENFumi's Father (voice)SPY x FAMILYRahden (voice)Sword Art OnlineTechnical Staff (voice)Haikyu!!Kai Akakura (voice)Frieren: Beyond Journey's EndVillager (voice)

Filmography

AllMoviesShows
2026Star Wars: Visions Presents - The Ninth JediSatellite Digger (voice), Eesha's Father (voice), Villager on Samaz (voice) · 2 episodesShow
2026Akane-banashiChusuke Chuotei (voice) · 1 episodeShow
2026You and I Are Polar OppositesConvenience Store Manager (voice) · 2 episodesShow
2025Inexpressive Kashiwada and Expressive OotaMathematics Teacher (voice) · 1 episodeShow
2025Solo Camping for TwoIzakaya Manager (voice) · 1 episodeShow
2025Turkey! Time to StrikeSamurai (voice) · 1 episodeShow
2025Welcome to the Outcast's Restaurant!Merchant (voice) · 1 episodeShow
2025Summer Pockets(voice) · 3 episodesShow
2025Catch Me at the Ballpark!Kaiser (voice) · 1 episodeShow
2024Puniru Is a Kawaii SlimeAcademic Researchers (voice), Academic Researcher (voice) · 2 episodesShow
2024Orb: On the Movements of the EarthKnight (voice) · 1 episodeShow
2024Dan Da DanTV Station Producer (voice), Male Client (voice), Male Teacher (voice) · 1 episodeShow
2024Let This Grieving Soul RetireGreg Zangief (voice) · 24 episodesShow
2024Mission: Yozakura FamilyDetective (voice), (voice), Battalion member (voice) · 1 episodeShow
2023The Apothecary DiariesAudience (voice) · 1 episodeShow
2023Tearmoon EmpirePriest (voice), Man (voice), Soldier (voice), Merchant (voice) · 2 episodesShow
2023Frieren: Beyond Journey's EndVillager (voice) · 1 episodeShow
2023I Got a Cheat Skill in Another World and Became Unrivaled in the Real World, Too(voice) · 7 episodesShow
2023The Aristocrat's Otherworldly Adventure: Serving Gods Who Go Too FarSebas (voice) · 1 episodeShow
2023NieR:Automata Ver1.1aKingdom Citizen (voice), Machine Creature (voice) · 1 episodeShow
2022BLUE LOCKReporter B (voice) · 1 episodeShow
2022SPY x FAMILYRahden (voice) · 1 episodeShow
2021Star Wars: VisionsEno's Father / Resistance Member (voice) · 1 episodeShow
2021Remake Our Life!(voice) · 1 episodeShow
2021I've Been Killing Slimes for 300 Years and Maxed Out My LevelStore Customer E (voice) · 1 episodeShow
2021Super CubClerk (voice) · 2 episodesShow
2020Yashahime: Princess Half-DemonThug (voice), Old man (voice), Peddler (voice), Official (voice), Guard (voice), Villager (voice), Chimimoryo (voice), Bird of Paradise (voice), Peasant (voice), Townsfolk (voice), Subordinate (voice), Vassal (voice), Demon (voice), Fisherman (voice), Rock Demon (voice), Palanquin Carrier (voice), Green ogre (voice), Staff member (voice), Yokai (voice), Raccoon dog in Mamiana Island (voice) · 4 episodesShow
2020JUJUTSU KAISENFumi's Father (voice) · 1 episodeShow
2020Tower of God(voice) · 1 episodeShow
2020ID: INVADEDStaff (voice) · 1 episodeShow
2019The Quintessential QuintupletsTeacher (voice), Homeroom Teacher (voice) · 2 episodesShow
2016March Comes In Like a LionAuthorized Person 3 (voice) · 1 episodeShow
2014Haikyu!!Kai Akakura (voice) · 4 episodesShow
2012Sword Art OnlineTechnical Staff (voice), Goblin (voice) · 1 episodeShow
2012Daily Lives of High School BoysBasketball Guy (voice), Boy B (voice) · 1 episodeShow

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