Kouki Koyasu · 子安 光樹 · Kōki Koyasu
Koki Koyasu is a Japanese voice actor. He is the son of popular voice actor Takehito Koyasu and a member of his agency T's Factory.
★7.9re zero kara hajimeru isekai seikatsu
Roswaal B. Mathers (voice)
2016
★8.5DAN DA DAN
Male Student A (voice)
2024
★7.7よふかしのうた
Kai (voice)
2022
★8.6İblis Keser
(voice)
2019
★8.6Jibaku Shounen Hanako-kun
Male Classmate A (voice)
2020
★6.5100万の命の上に俺は立っている
Nomura (voice)
2020
★6.5100万の命の上に俺は立っている
Maccahee (voice)
2020
★5.4オルタンシア・サーガ
Camellia Soldier (voice)
2021
★5.4オルタンシア・サーガ
Soldier (voice)
2021
★5.4オルタンシア・サーガ
Church Knight (voice)
2021
★9.0令和に官能小説作ってます
Oizumi Aoi
2026
