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