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Koji Seki

Koji Seki

Actor · Born 1982-11-25 · Saitama, Japan

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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.

Movies & TV Shows

  1. JUJUTSU KAISEN (2020) — Fumi's Father (voice)
  2. SPY x FAMILY (2022) — Rahden (voice)
  3. Sword Art Online (2012) — Technical Staff (voice)
  4. Haikyu!! (2014) — Kai Akakura (voice)
  5. Frieren: Beyond Journey's End (2023) — Villager (voice)
  6. Dan Da Dan (2024) — TV Station Producer (voice)
  7. The Quintessential Quintuplets (2019) — Teacher (voice)
  8. BLUE LOCK (2022) — Reporter B (voice)
  9. Tower of God (2020) — (voice)
  10. Star Wars: Visions (2021) — Eno's Father / Resistance Member (voice)
  11. I Got a Cheat Skill in Another World and Became Unrivaled in the Real World, Too (2023) — (voice)
  12. HAIKYU!! The Dumpster Battle (2024) — Patient (voice)
  13. I've Been Killing Slimes for 300 Years and Maxed Out My Level (2021) — Store Customer E (voice)
  14. Sword Art Online the Movie – Progressive – Scherzo of Deep Night (2022) — Naijan (voice)
  15. Daily Lives of High School Boys (2012) — Basketball Guy (voice)
  16. NieR:Automata Ver1.1a (2023) — Kingdom Citizen (voice)
  17. Yashahime: Princess Half-Demon (2020) — Thug (voice)
  18. March Comes In Like a Lion (2016) — Authorized Person 3 (voice)
  19. ID: INVADED (2020) — Staff (voice)
  20. Orb: On the Movements of the Earth (2024) — Knight (voice)
  21. You and I Are Polar Opposites (2026) — Convenience Store Manager (voice)
  22. Mission: Yozakura Family (2024) — Detective (voice)
  23. The Aristocrat's Otherworldly Adventure: Serving Gods Who Go Too Far (2023) — Sebas (voice)
  24. Remake Our Life! (2021) — (voice)
  25. Let This Grieving Soul Retire (2024) — Greg Zangief (voice)
  26. Super Cub (2021) — Clerk (voice)
  27. Umamusume: Pretty Derby - Beginning of a New Era (2024) — (voice)
  28. Tearmoon Empire (2023) — Priest (voice)
  29. Welcome to the Outcast's Restaurant! (2025) — Merchant (voice)
  30. Akane-banashi (2026) — Chusuke Chuotei (voice)
  31. Solo Camping for Two (2025) — Izakaya Manager (voice)
  32. DAN DA DAN: First Encounter (2024) — TV Station Producer (voice)
  33. Catch Me at the Ballpark! (2025) — Kaiser (voice)
  34. Summer Pockets (2025) — (voice)
  35. Puniru Is a Kawaii Slime (2024) — Academic Researchers (voice)
  36. Inexpressive Kashiwada and Expressive Oota (2025) — Mathematics Teacher (voice)
  37. Turkey! Time to Strike (2025) — Samurai (voice)