Koji Seki is a dependable Japanese actor, better known to casting directors than to the public. 'Yashahime: Princess Half-Demon' is a second title that reaches an audience. He is 43 years old. Animation accounts for a large share of the titles. At 38 titles, the filmography is a substantial one. In 'I Got a Cheat Skill in Another World and Became Unrivaled in the Real World, Too' he has one of the more visible roles of the career.
Koji Seki
Actor · Voice actor
43 years (Nov 25, 1982)Saitama, Japan
Koji Seki is a dependable Japanese actor, better known to casting directors than to the public. 'Yashahime: Princess Half-Demon' is a second title that reaches an audience. He is 43 years old. Animation accounts for a large share of the titles. At 38 titles, the filmography is a substantial one. In 'I Got a Cheat Skill in Another World and Became Unrivaled in the Real World, Too' he has one of the more visible roles of the career.
Koji Seki is 43 years old, born on November 25, 1982 in Saitama, Japan.
What are the most famous roles of Koji Seki?
Koji Seki is best known for roles in HAIKYU!! The Dumpster Battle, Sword Art Online the Movie – Progressive – Scherzo of Deep Night, Umamusume: Pretty Derby - Beginning of a New Era.
How many movies has Koji Seki been in?
Over a 4-year career (since 2022), Koji Seki has appeared in 4 movies and 34 TV shows.
What was Koji Seki's first movie?
The career of Koji Seki began with Sword Art Online the Movie – Progressive – Scherzo of Deep Night (2022).
What is Koji Seki's most recent movie or series?
Koji Seki's most recent release is Star Wars: Visions Presents - The Ninth Jedi, which premiered on August 5, 2026.
What TV shows has Koji Seki appeared in?
On television, Koji Seki has appeared in JUJUTSU KAISEN, SPY x FAMILY, Sword Art Online, Haikyu!!.
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.