Acting
Koji Seki
Acting · Born 1982-11-25 · Saitama, Japan
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.
Credits · 38
Star Wars: Visions Presents - The Ninth Jedi
2026 · Satellite Digger (voice)
Akane-banashi
2026 · Chusuke Chuotei (voice)
You and I Are Polar Opposites
2026 · Convenience Store Manager (voice)
Inexpressive Kashiwada and Expressive Oota
2025 · Mathematics Teacher (voice)
Solo Camping for Two
2025 · Izakaya Manager (voice)
Turkey! Time to Strike
2025 · Samurai (voice)
Welcome to the Outcast's Restaurant!
2025 · Merchant (voice)
Summer Pockets
2025 · (voice)
Catch Me at the Ballpark!
2025 · Kaiser (voice)
Puniru Is a Kawaii Slime
2024 · Academic Researchers (voice)
Orb: On the Movements of the Earth
2024 · Knight (voice)
Dan Da Dan
2024 · TV Station Producer (voice)
Let This Grieving Soul Retire
2024 · Greg Zangief (voice)
FilmDAN DA DAN: First Encounter
2024 · TV Station Producer (voice)
FilmUmamusume: Pretty Derby - Beginning of a New Era
2024 · (voice)
Mission: Yozakura Family
2024 · Detective (voice)
FilmHAIKYU!! The Dumpster Battle
2024 · Patient (voice)
Tearmoon Empire
2023 · Priest (voice)
Frieren: Beyond Journey's End
2023 · Villager (voice)
I Got a Cheat Skill in Another World and Became Unrivaled in the Real World, Too
2023 · (voice)
The Aristocrat's Otherworldly Adventure: Serving Gods Who Go Too Far
2023 · Sebas (voice)
NieR:Automata Ver1.1a
2023 · Kingdom Citizen (voice)
FilmSword Art Online the Movie – Progressive – Scherzo of Deep Night
2022 · Naijan (voice)
BLUE LOCK
2022 · Reporter B (voice)
SPY x FAMILY
2022 · Rahden (voice)
Star Wars: Visions
2021 · Eno's Father / Resistance Member (voice)
Remake Our Life!
2021 · (voice)
I've Been Killing Slimes for 300 Years and Maxed Out My Level
2021 · Store Customer E (voice)
Super Cub
2021 · Clerk (voice)
Yashahime: Princess Half-Demon
2020 · Thug (voice)
JUJUTSU KAISEN
2020 · Fumi's Father (voice)
Tower of God
2020 · (voice)
ID: INVADED
2020 · Staff (voice)
The Quintessential Quintuplets
2019 · Teacher (voice)
March Comes In Like a Lion
2016 · Authorized Person 3 (voice)
Haikyu!!
2014 · Kai Akakura (voice)
Sword Art Online
2012 · Technical Staff (voice)
Daily Lives of High School Boys
2012 · Basketball Guy (voice)