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Koji Seki
ActingPopularity Index 138 Titles

Koji Seki

Born: 1982-11-25Saitama, 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.

Complete Koji Seki Filmography

38 Titles
Watch JUJUTSU KAISEN (2020) full TV series online free in 4K Ultra HD on Rushmega
86%

JUJUTSU KAISEN

2020•4K Ultra HD

Watch Frieren: Beyond Journey's End (2023) full TV series online free in 4K Ultra HD on Rushmega
88%

Frieren: Beyond Journey's End

2023•4K Ultra HD

Watch SPY x FAMILY (2022) full TV series online free in 4K Ultra HD on Rushmega
85%

SPY x FAMILY

2022•4K Ultra HD

Watch You and I Are Polar Opposites (2026) full TV series online free in 4K Ultra HD on Rushmega
86%

You and I Are Polar Opposites

2026•4K Ultra HD

Watch Mission: Yozakura Family (2024) full TV series online free in 4K Ultra HD on Rushmega
75%

Mission: Yozakura Family

2024•4K Ultra HD

Watch Sword Art Online (2012) full TV series online free in 4K Ultra HD on Rushmega
82%

Sword Art Online

2012•4K Ultra HD

Watch Haikyu!! (2014) full TV series online free in 4K Ultra HD on Rushmega
86%

Haikyu!!

2014•4K Ultra HD

Watch BLUE LOCK (2022) full TV series online free in 4K Ultra HD on Rushmega
83%

BLUE LOCK

2022•4K Ultra HD

Watch March Comes In Like a Lion (2016) full TV series online free in 4K Ultra HD on Rushmega
80%

March Comes In Like a Lion

2016•4K Ultra HD

Watch Dan Da Dan (2024) full TV series online free in 4K Ultra HD on Rushmega
85%

Dan Da Dan

2024•4K Ultra HD

Watch Tower of God (2020) full TV series online free in 4K Ultra HD on Rushmega
81%

Tower of God

2020•4K Ultra HD

Watch Akane-banashi (2026) full TV series online free in 4K Ultra HD on Rushmega
80%

Akane-banashi

2026•4K Ultra HD

Watch Yashahime: Princess Half-Demon (2020) full TV series online free in 4K Ultra HD on Rushmega
83%

Yashahime: Princess Half-Demon

2020•4K Ultra HD

Watch Star Wars: Visions Presents - The Ninth Jedi (2026) full TV series online free in 4K Ultra HD on Rushmega
76%

Star Wars: Visions Presents - The Ninth Jedi

2026•4K Ultra HD

Watch NieR:Automata Ver1.1a (2023) full TV series online free in 4K Ultra HD on Rushmega
81%

NieR:Automata Ver1.1a

2023•4K Ultra HD

Watch Super Cub (2021) full TV series online free in 4K Ultra HD on Rushmega
73%

Super Cub

2021•4K Ultra HD

Watch The Quintessential Quintuplets (2019) full TV series online free in 4K Ultra HD on Rushmega
84%

The Quintessential Quintuplets

2019•4K Ultra HD

Watch Star Wars: Visions (2021) full TV series online free in 4K Ultra HD on Rushmega
71%

Star Wars: Visions

2021•4K Ultra HD

Watch Orb: On the Movements of the Earth (2024) full TV series online free in 4K Ultra HD on Rushmega
81%

Orb: On the Movements of the Earth

2024•4K Ultra HD

Watch Puniru Is a Kawaii Slime (2024) full TV series online free in 4K Ultra HD on Rushmega
77%

Puniru Is a Kawaii Slime

2024•4K Ultra HD

Watch I've Been Killing Slimes for 300 Years and Maxed Out My Level (2021) full TV series online free in 4K Ultra HD on Rushmega
78%

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

2021•4K Ultra HD

Watch Summer Pockets (2025) full TV series online free in 4K Ultra HD on Rushmega
69%

Summer Pockets

2025•4K Ultra HD

Watch Solo Camping for Two (2025) full TV series online free in 4K Ultra HD on Rushmega
75%

Solo Camping for Two

2025•4K Ultra HD

Watch I Got a Cheat Skill in Another World and Became Unrivaled in the Real World, Too (2023) full TV series online free in 4K Ultra HD on Rushmega
82%

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

2023•4K Ultra HD

Watch Let This Grieving Soul Retire (2024) full TV series online free in 4K Ultra HD on Rushmega
66%

Let This Grieving Soul Retire

2024•4K Ultra HD

Watch Catch Me at the Ballpark! (2025) full TV series online free in 4K Ultra HD on Rushmega
78%

Catch Me at the Ballpark!

2025•4K Ultra HD

Watch The Aristocrat's Otherworldly Adventure: Serving Gods Who Go Too Far (2023) full TV series online free in 4K Ultra HD on Rushmega
71%

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

2023•4K Ultra HD

Watch Inexpressive Kashiwada and Expressive Oota (2025) full TV series online free in 4K Ultra HD on Rushmega
73%

Inexpressive Kashiwada and Expressive Oota

2025•4K Ultra HD

Watch HAIKYU!! The Dumpster Battle (2024) full movie online free in 4K Ultra HD on Rushmega
78%

HAIKYU!! The Dumpster Battle

2024•4K Ultra HD

Watch Daily Lives of High School Boys (2012) full TV series online free in 4K Ultra HD on Rushmega
80%

Daily Lives of High School Boys

2012•4K Ultra HD

Watch ID: INVADED (2020) full TV series online free in 4K Ultra HD on Rushmega
73%

ID: INVADED

2020•4K Ultra HD

Watch Remake Our Life! (2021) full TV series online free in 4K Ultra HD on Rushmega
73%

Remake Our Life!

2021•4K Ultra HD

Watch Welcome to the Outcast's Restaurant! (2025) full TV series online free in 4K Ultra HD on Rushmega
73%

Welcome to the Outcast's Restaurant!

2025•4K Ultra HD

Watch Tearmoon Empire (2023) full TV series online free in 4K Ultra HD on Rushmega
71%

Tearmoon Empire

2023•4K Ultra HD

Watch Turkey! Time to Strike (2025) full TV series online free in 4K Ultra HD on Rushmega
63%

Turkey! Time to Strike

2025•4K Ultra HD

Watch Sword Art Online the Movie – Progressive – Scherzo of Deep Night (2022) full movie online free in 4K Ultra HD on Rushmega
77%

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

2022•4K Ultra HD

Watch Umamusume: Pretty Derby - Beginning of a New Era (2024) full movie online free in 4K Ultra HD on Rushmega
86%

Umamusume: Pretty Derby - Beginning of a New Era

2024•4K Ultra HD

Watch DAN DA DAN: First Encounter (2024) full movie online free in 4K Ultra HD on Rushmega
76%

DAN DA DAN: First Encounter

2024•4K Ultra HD