Koji Seki

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.

More details

Known For

Jujutsu Kaisen

Jujutsu Kaisen

2020 • as Fumi's Father (voice)

BLUE LOCK

BLUE LOCK

2022 • as Reporter B (voice)

Haikyu!!

Haikyu!!

2014 • as Kai Akakura (voice)

Sword Art Online

Sword Art Online

2012 • as Technical Staff (voice)

Sword Art Online

Sword Art Online

2012 • as Goblin (voice)

Dan Da Dan

Dan Da Dan

2024 • as TV Station Producer (voice)

Filmography

2024

DAN DA DAN: First Encounter
DAN DA DAN: First Encounter
as TV Station Producer (voice)
Movie - Released: 8/31/2024
Dan Da Dan
Dan Da Dan
as TV Station Producer (voice)
TV - Released: 10/4/2024
Dan Da Dan
Dan Da Dan
as Male Client (voice)
TV - Released: 10/4/2024
Dan Da Dan
Dan Da Dan
as Male Teacher (voice)
TV - Released: 10/4/2024
Puniru Is a Kawaii Slime
Puniru Is a Kawaii Slime
as Academic Researchers (voice)
TV - Released: 10/6/2024
Mission: Yozakura Family
Mission: Yozakura Family
as Detective (voice)
TV - Released: 4/7/2024
Mission: Yozakura Family
Mission: Yozakura Family
as (voice)
TV - Released: 4/7/2024
Mission: Yozakura Family
Mission: Yozakura Family
as Battalion member (voice)
TV - Released: 4/7/2024
Let This Grieving Soul Retire
Let This Grieving Soul Retire
as Greg Zangief (voice)
TV - Released: 10/1/2024
Orb: On the Movements of the Earth
Orb: On the Movements of the Earth
as Knight (voice)
TV - Released: 10/5/2024

2023

NieR:Automata Ver1.1a
NieR:Automata Ver1.1a
as Kingdom Citizen (voice)
TV - Released: 1/8/2023
I Got a Cheat Skill in Another World and Became Unrivaled in the Real World, Too
I Got a Cheat Skill in Another World and Became Unrivaled in the Real World, Too
as (voice)
TV - Released: 4/7/2023
The Aristocrat's Otherworldly Adventure: Serving Gods Who Go Too Far
The Aristocrat's Otherworldly Adventure: Serving Gods Who Go Too Far
as Sebas (voice)
TV - Released: 4/3/2023
NieR:Automata Ver1.1a
NieR:Automata Ver1.1a
as Machine Creature (voice)
TV - Released: 1/8/2023

2022

Sword Art Online the Movie – Progressive – Scherzo of Deep Night
Sword Art Online the Movie – Progressive – Scherzo of Deep Night
as Naijan (voice)
Movie - Released: 10/22/2022
BLUE LOCK
BLUE LOCK
as Reporter B (voice)
TV - Released: 10/9/2022

2021

Super Cub
Super Cub
as Clerk (voice)
TV - Released: 4/7/2021
I've Been Killing Slimes for 300 Years and Maxed Out My Level
I've Been Killing Slimes for 300 Years and Maxed Out My Level
as Store Customer E (voice)
TV - Released: 4/10/2021
Remake Our Life!
Remake Our Life!
as (voice)
TV - Released: 7/3/2021

2020

Yashahime: Princess Half-Demon
Yashahime: Princess Half-Demon
as Thug (voice)
TV - Released: 10/3/2020
Yashahime: Princess Half-Demon
Yashahime: Princess Half-Demon
as Old man (voice)
TV - Released: 10/3/2020
Yashahime: Princess Half-Demon
Yashahime: Princess Half-Demon
as Peddler (voice)
TV - Released: 10/3/2020
Yashahime: Princess Half-Demon
Yashahime: Princess Half-Demon
as Official (voice)
TV - Released: 10/3/2020
Yashahime: Princess Half-Demon
Yashahime: Princess Half-Demon
as Guard (voice)
TV - Released: 10/3/2020
Yashahime: Princess Half-Demon
Yashahime: Princess Half-Demon
as Chimimoryo (voice)
TV - Released: 10/3/2020
Yashahime: Princess Half-Demon
Yashahime: Princess Half-Demon
as Villager (voice)
TV - Released: 10/3/2020
Yashahime: Princess Half-Demon
Yashahime: Princess Half-Demon
as Bird of Paradise (voice)
TV - Released: 10/3/2020
Yashahime: Princess Half-Demon
Yashahime: Princess Half-Demon
as Peasant (voice)
TV - Released: 10/3/2020
Yashahime: Princess Half-Demon
Yashahime: Princess Half-Demon
as Subordinate (voice)
TV - Released: 10/3/2020
Yashahime: Princess Half-Demon
Yashahime: Princess Half-Demon
as Townsfolk (voice)
TV - Released: 10/3/2020
Yashahime: Princess Half-Demon
Yashahime: Princess Half-Demon
as Vassal (voice)
TV - Released: 10/3/2020
Yashahime: Princess Half-Demon
Yashahime: Princess Half-Demon
as Fisherman (voice)
TV - Released: 10/3/2020
Yashahime: Princess Half-Demon
Yashahime: Princess Half-Demon
as Demon (voice)
TV - Released: 10/3/2020
Yashahime: Princess Half-Demon
Yashahime: Princess Half-Demon
as Palanquin Carrier (voice)
TV - Released: 10/3/2020
Yashahime: Princess Half-Demon
Yashahime: Princess Half-Demon
as Rock Demon (voice)
TV - Released: 10/3/2020
Yashahime: Princess Half-Demon
Yashahime: Princess Half-Demon
as Green ogre (voice)
TV - Released: 10/3/2020
Yashahime: Princess Half-Demon
Yashahime: Princess Half-Demon
as Staff member (voice)
TV - Released: 10/3/2020
Yashahime: Princess Half-Demon
Yashahime: Princess Half-Demon
as Yokai (voice)
TV - Released: 10/3/2020
Yashahime: Princess Half-Demon
Yashahime: Princess Half-Demon
as Raccoon dog in Mamiana Island (voice)
TV - Released: 10/3/2020
Jujutsu Kaisen
Jujutsu Kaisen
as Fumi's Father (voice)
TV - Released: 10/3/2020
Tower of God
Tower of God
as (voice)
TV - Released: 4/2/2020

2019

The Quintessential Quintuplets
The Quintessential Quintuplets
as Teacher (voice)
TV - Released: 1/11/2019
The Quintessential Quintuplets
The Quintessential Quintuplets
as Homeroom Teacher (voice)
TV - Released: 1/11/2019

2016

March Comes In Like a Lion
March Comes In Like a Lion
as Authorized Person 3 (voice)
TV - Released: 10/8/2016

2014

Haikyu!!
Haikyu!!
as Kai Akakura (voice)
TV - Released: 4/6/2014

2012

Sword Art Online
Sword Art Online
as Technical Staff (voice)
TV - Released: 7/8/2012
Sword Art Online
Sword Art Online
as Goblin (voice)
TV - Released: 7/8/2012
Daily Lives of High School Boys
Daily Lives of High School Boys
as Basketball Guy (voice)
TV - Released: 1/10/2012
Daily Lives of High School Boys
Daily Lives of High School Boys
as Boy B (voice)
TV - Released: 1/10/2012