Koji Seki

Personal Info

Birthday

November 25, 1982

Place of Birth

Saitama, Japan

Known For

Acting

Koji 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 Filmography (37)

Akane-banashi
8.1

Akane-banashi

TV Series2026
You and I Are Polar Opposites
8.4

You and I Are Polar Opposites

TV Series2026
Inexpressive Kashiwada and Expressive Oota
7.0

Inexpressive Kashiwada and Expressive Oota

TV Series2025
Solo Camping for Two
7.3

Solo Camping for Two

TV Series2025
Turkey! Time to Strike
6.3

Turkey! Time to Strike

TV Series2025
Welcome to the Outcast's Restaurant!
7.3

Welcome to the Outcast's Restaurant!

TV Series2025
Summer Pockets
6.8

Summer Pockets

TV Series2025
Catch Me at the Ballpark!
7.8

Catch Me at the Ballpark!

TV Series2025
Puniru Is a Kawaii Slime
7.7

Puniru Is a Kawaii Slime

TV Series2024
Orb: On the Movements of the Earth
8.0

Orb: On the Movements of the Earth

TV Series2024
Dan Da Dan
8.5

Dan Da Dan

TV Series2024
Let This Grieving Soul Retire
6.6

Let This Grieving Soul Retire

TV Series2024
DAN DA DAN: First Encounter
7.6

DAN DA DAN: First Encounter

Movie2024
Umamusume: Pretty Derby - Beginning of a New Era
8.6

Umamusume: Pretty Derby - Beginning of a New Era

Movie2024
Mission: Yozakura Family
7.5

Mission: Yozakura Family

TV Series2024
HAIKYU!! The Dumpster Battle
7.8

HAIKYU!! The Dumpster Battle

Movie2024
Tearmoon Empire
7.1

Tearmoon Empire

TV Series2023
Frieren: Beyond Journey's End
8.8

Frieren: Beyond Journey's End

TV Series2023
I Got a Cheat Skill in Another World and Became Unrivaled in the Real World, Too
8.2

I Got a Cheat Skill in Another World and Became Unrivaled in the Real World, Too

TV Series2023
The Aristocrat's Otherworldly Adventure: Serving Gods Who Go Too Far
7.1

The Aristocrat's Otherworldly Adventure: Serving Gods Who Go Too Far

TV Series2023
NieR:Automata Ver1.1a
8.1

NieR:Automata Ver1.1a

TV Series2023
Sword Art Online the Movie – Progressive – Scherzo of Deep Night
7.7

Sword Art Online the Movie – Progressive – Scherzo of Deep Night

Movie2022
BLUE LOCK
8.3

BLUE LOCK

TV Series2022
SPY x FAMILY
8.5

SPY x FAMILY

TV Series2022
Star Wars: Visions
7.1

Star Wars: Visions

TV Series2021
Remake Our Life!
7.3

Remake Our Life!

TV Series2021
I've Been Killing Slimes for 300 Years and Maxed Out My Level
7.8

I've Been Killing Slimes for 300 Years and Maxed Out My Level

TV Series2021
Super Cub
7.3

Super Cub

TV Series2021
Yashahime: Princess Half-Demon
8.3

Yashahime: Princess Half-Demon

TV Series2020
JUJUTSU KAISEN
8.6

JUJUTSU KAISEN

TV Series2020
Tower of God
8.2

Tower of God

TV Series2020
ID: INVADED
7.3

ID: INVADED

TV Series2020
The Quintessential Quintuplets
8.4

The Quintessential Quintuplets

TV Series2019
March Comes In Like a Lion
8.0

March Comes In Like a Lion

TV Series2016
Haikyu!!
8.6

Haikyu!!

TV Series2014
Sword Art Online
8.2

Sword Art Online

TV Series2012
Daily Lives of High School Boys
8.0

Daily Lives of High School Boys

TV Series2012