Koji Seki
Birthday
1982/11/25 (43 years old)
Gender
Male
Place of Birth
Saitama, Japan
Also know as
Kouji Seki, 関 幸司, Kōji Seki
Biography
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.
Acting
(2022) Sword Art Online the Movie – Progressive – Scherzo of Deep Night
as Naijan (voice)
(2024) DAN DA DAN: First Encounter
as TV Station Producer (voice)
(2024) HAIKYU!! The Dumpster Battle
as Patient (voice)
(2024) Umamusume: Pretty Derby - Beginning of a New Era
as (voice)
(2016) March Comes In Like a Lion
as Authorized Person 3 (voice)
(2021) Super Cub
as Clerk (voice)
(2012) Sword Art Online
as Technical Staff (voice)
(2012) Sword Art Online
as Goblin (voice)
(2021) I've Been Killing Slimes for 300 Years and Maxed Out My Level
as Store Customer E (voice)
(2023) NieR:Automata Ver1.1a
as Kingdom Citizen (voice)
(2023) I Got a Cheat Skill in Another World and Became Unrivaled in the Real World, Too
as (voice)
(2019) The Quintessential Quintuplets
as Teacher (voice)
(2019) The Quintessential Quintuplets
as Homeroom Teacher (voice)
(2020) Yashahime: Princess Half-Demon
as Thug (voice)
(2020) Yashahime: Princess Half-Demon
as Old man (voice)
(2020) Yashahime: Princess Half-Demon
as Peddler (voice)
(2020) Yashahime: Princess Half-Demon
as Official (voice)
(2020) Yashahime: Princess Half-Demon
as Guard (voice)
(2020) Yashahime: Princess Half-Demon
as Chimimoryo (voice)
(2020) Yashahime: Princess Half-Demon
as Villager (voice)
(2020) Yashahime: Princess Half-Demon
as Bird of Paradise (voice)
(2020) Yashahime: Princess Half-Demon
as Peasant (voice)
(2020) Yashahime: Princess Half-Demon
as Subordinate (voice)
(2020) Yashahime: Princess Half-Demon
as Townsfolk (voice)
(2020) Yashahime: Princess Half-Demon
as Vassal (voice)
(2023) The Aristocrat's Otherworldly Adventure: Serving Gods Who Go Too Far
as Sebas (voice)
(2020) Yashahime: Princess Half-Demon
as Fisherman (voice)
(2020) Yashahime: Princess Half-Demon
as Demon (voice)
(2020) Yashahime: Princess Half-Demon
as Palanquin Carrier (voice)
(2020) Yashahime: Princess Half-Demon
as Rock Demon (voice)
(2020) Yashahime: Princess Half-Demon
as Green ogre (voice)
(2022) BLUE LOCK
as Reporter B (voice)
(2020) Yashahime: Princess Half-Demon
as Staff member (voice)
(2020) Yashahime: Princess Half-Demon
as Yokai (voice)
(2020) Yashahime: Princess Half-Demon
as Raccoon dog in Mamiana Island (voice)
(2020) JUJUTSU KAISEN
as Fumi's Father (voice)
(2014) Haikyu!!
as Kai Akakura (voice)
(2023) NieR:Automata Ver1.1a
as Machine Creature (voice)
(2012) Daily Lives of High School Boys
as Basketball Guy (voice)
(2012) Daily Lives of High School Boys
as Boy B (voice)
(2024) Dan Da Dan
as TV Station Producer (voice)
(2024) Dan Da Dan
as Male Client (voice)
(2020) Tower of God
as (voice)
(2024) Dan Da Dan
as Male Teacher (voice)
(2024) Mission: Yozakura Family
as Detective (voice)
(2024) Mission: Yozakura Family
as (voice)
(2024) Mission: Yozakura Family
as Battalion member (voice)
(2024) Let This Grieving Soul Retire
as Greg Zangief (voice)
(2024) Orb: On the Movements of the Earth
as Knight (voice)
(2023) Tearmoon Empire
as Priest (voice)
(2023) Tearmoon Empire
as Man (voice)
(2023) Tearmoon Empire
as Soldier (voice)
(2023) Tearmoon Empire
as Merchant (voice)
(2020) ID: INVADED
as Staff (voice)
(2025) Catch Me at the Ballpark!
as Kaiser (voice)
(2025) Summer Pockets
as (voice)
(2025) Welcome to the Outcast's Restaurant!
as Merchant (voice)
(2024) Puniru Is a Kawaii Slime
as Academic Researchers (voice)
(2024) Puniru Is a Kawaii Slime
as Academic Researcher (voice)
(2025) Turkey! Time to Strike
as Samurai (voice)
(2021) Remake Our Life!
as (voice)
(2021) Star Wars: Visions
as ---
(2022) SPY x FAMILY
as Rahden (voice)
(2025) Solo Camping for Two
as Izakaya Manager (voice)
(2025) Inexpressive Kashiwada and Expressive Oota
as Mathematics Teacher (voice)