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.
Known For: Acting
Birthday: 1982-11-25
Place of Birth: Saitama, Japan
Also Known As: Kouji Seki, 関 幸司, Kōji Seki