Acting · born November 25, 1982 · Saitama, Japan

Koji Seki

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.

TMDB page · IMDb

Filmography (70)

Star Wars: Visions Presents - The Ninth JediSeries · 2026 · as Satellite Digger (voice) · 2 ep.★ 7.4
Star Wars: Visions Presents - The Ninth JediSeries · 2026 · as Eesha's Father (voice) · 1 ep.★ 7.4
Star Wars: Visions Presents - The Ninth JediSeries · 2026 · as Villager on Samaz (voice) · 1 ep.★ 7.4
Akane-banashiSeries · 2026 · as Chusuke Chuotei (voice) · 1 ep.★ 7.8
You and I Are Polar OppositesSeries · 2026 · as Convenience Store Manager (voice) · 2 ep.★ 8.6
Inexpressive Kashiwada and Expressive OotaSeries · 2025 · as Mathematics Teacher (voice) · 1 ep.★ 7.2
Solo Camping for TwoSeries · 2025 · as Izakaya Manager (voice) · 1 ep.★ 7.5
Turkey! Time to StrikeSeries · 2025 · as Samurai (voice) · 1 ep.★ 6.3
Welcome to the Outcast's Restaurant!Series · 2025 · as Merchant (voice) · 1 ep.★ 7.4
Summer PocketsSeries · 2025 · as (voice) · 3 ep.★ 6.9
Catch Me at the Ballpark!Series · 2025 · as Kaiser (voice) · 1 ep.★ 7.8
Puniru Is a Kawaii SlimeSeries · 2024 · as Academic Researchers (voice) · 2 ep.★ 7.7
Puniru Is a Kawaii SlimeSeries · 2024 · as Academic Researcher (voice) · 1 ep.★ 7.7
Orb: On the Movements of the EarthSeries · 2024 · as Knight (voice) · 1 ep.★ 8.1
Dan Da DanSeries · 2024 · as TV Station Producer (voice) · 1 ep.★ 8.5
Dan Da DanSeries · 2024 · as Male Client (voice) · 1 ep.★ 8.5
Dan Da DanSeries · 2024 · as Male Teacher (voice) · 1 ep.★ 8.5
Let This Grieving Soul RetireSeries · 2024 · as Greg Zangief (voice) · 24 ep.★ 6.6
DAN DA DAN: First EncounterMovie · 2024 · as TV Station Producer (voice)★ 7.5
Umamusume: Pretty Derby - Beginning of a New EraMovie · 2024 · as (voice)★ 8.5
Mission: Yozakura FamilySeries · 2024 · as Detective (voice) · 1 ep.★ 7.5
Mission: Yozakura FamilySeries · 2024 · as (voice) · 1 ep.★ 7.5
Mission: Yozakura FamilySeries · 2024 · as Battalion member (voice) · 1 ep.★ 7.5
HAIKYU!! The Dumpster BattleMovie · 2024 · as Patient (voice)★ 7.8
Tearmoon EmpireSeries · 2023 · as Priest (voice) · 2 ep.★ 7.1
Tearmoon EmpireSeries · 2023 · as Man (voice) · 1 ep.★ 7.1
Tearmoon EmpireSeries · 2023 · as Soldier (voice) · 1 ep.★ 7.1
Tearmoon EmpireSeries · 2023 · as Merchant (voice) · 1 ep.★ 7.1
Frieren: Beyond Journey's EndSeries · 2023 · as Villager (voice) · 1 ep.★ 8.8
I Got a Cheat Skill in Another World and Became Unrivaled in the Real World, TooSeries · 2023 · as (voice) · 7 ep.★ 8.2
The Aristocrat's Otherworldly Adventure: Serving Gods Who Go Too FarSeries · 2023 · as Sebas (voice) · 1 ep.★ 7.1
NieR:Automata Ver1.1aSeries · 2023 · as Kingdom Citizen (voice) · 1 ep.★ 8.1
NieR:Automata Ver1.1aSeries · 2023 · as Machine Creature (voice) · 1 ep.★ 8.1
Sword Art Online the Movie – Progressive – Scherzo of Deep NightMovie · 2022 · as Naijan (voice)★ 7.7
BLUE LOCKSeries · 2022 · as Reporter B (voice) · 1 ep.★ 8.3
SPY x FAMILYSeries · 2022 · as Rahden (voice) · 1 ep.★ 8.5
Remake Our Life!Series · 2021 · as (voice) · 1 ep.★ 7.3
I've Been Killing Slimes for 300 Years and Maxed Out My LevelSeries · 2021 · as Store Customer E (voice) · 1 ep.★ 7.8
Super CubSeries · 2021 · as Clerk (voice) · 2 ep.★ 7.3
Yashahime: Princess Half-DemonSeries · 2020 · as Thug (voice) · 1 ep.★ 8.3
Yashahime: Princess Half-DemonSeries · 2020 · as Official (voice) · 1 ep.★ 8.3
Yashahime: Princess Half-DemonSeries · 2020 · as Peddler (voice) · 1 ep.★ 8.3
Yashahime: Princess Half-DemonSeries · 2020 · as Guard (voice) · 1 ep.★ 8.3
Yashahime: Princess Half-DemonSeries · 2020 · as Old man (voice) · 1 ep.★ 8.3
Yashahime: Princess Half-DemonSeries · 2020 · as Chimimoryo (voice) · 1 ep.★ 8.3
Yashahime: Princess Half-DemonSeries · 2020 · as Villager (voice) · 4 ep.★ 8.3
Yashahime: Princess Half-DemonSeries · 2020 · as Peasant (voice) · 1 ep.★ 8.3
Yashahime: Princess Half-DemonSeries · 2020 · as Bird of Paradise (voice) · 1 ep.★ 8.3
Yashahime: Princess Half-DemonSeries · 2020 · as Subordinate (voice) · 1 ep.★ 8.3
Yashahime: Princess Half-DemonSeries · 2020 · as Townsfolk (voice) · 2 ep.★ 8.3
Yashahime: Princess Half-DemonSeries · 2020 · as Vassal (voice) · 3 ep.★ 8.3
Yashahime: Princess Half-DemonSeries · 2020 · as Fisherman (voice) · 1 ep.★ 8.3
Yashahime: Princess Half-DemonSeries · 2020 · as Demon (voice) · 1 ep.★ 8.3
Yashahime: Princess Half-DemonSeries · 2020 · as Rock Demon (voice) · 1 ep.★ 8.3
Yashahime: Princess Half-DemonSeries · 2020 · as Palanquin Carrier (voice) · 1 ep.★ 8.3
Yashahime: Princess Half-DemonSeries · 2020 · as Green ogre (voice) · 1 ep.★ 8.3
Yashahime: Princess Half-DemonSeries · 2020 · as Staff member (voice) · 1 ep.★ 8.3
Yashahime: Princess Half-DemonSeries · 2020 · as Yokai (voice) · 2 ep.★ 8.3
Yashahime: Princess Half-DemonSeries · 2020 · as Raccoon dog in Mamiana Island (voice) · 1 ep.★ 8.3
JUJUTSU KAISENSeries · 2020 · as Fumi's Father (voice) · 1 ep.★ 8.6