Koji Seto (瀬戸 康史) is a Japanese actor and singer, His also known as Seto Kōji, He was born on 18th May 1988 in Kama, Fukuoka, Japan. Koji Seto is known for Kamen Rider Kiva: King of the Castle in the Demon World (2008), Haganai (2014), Asako I & II (2018), No Longer Human (2019), Love Nonetheless (2022), Fly Me to the Saitama 2 (2023), Journal with Witch (2024), Maboroshi (2024) and Ikoku Nikki (2024).
Koji Seto father name is N/A and his mother name is N/A. He has one sister Saori Seto. His marital status is married. Koji Seto wife name is Mizuki Yamamoto. The couple has one child.