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.

KNOWN FOR

Re:ZERO -Starting Life in Another World-
2021
Dan Da Dan
2024
Call of the Night
2022
Toilet-Bound Hanako-kun
2020
Demon Slayer: Kimetsu no Yaiba
2024
I'm Standing on a Million Lives
2020
Hortensia SAGA
2021
Reiwa ni Kannou Shousetsu Tsukuttemasu
2026

FILMOGRAPHY

All
Movies
TV
Acting
11
2026
Reiwa ni Kannou Shousetsu Tsukuttemasu
as Oizumi Aoi
2024
Demon Slayer: Kimetsu no Yaiba
as (voice)
2024
Dan Da Dan
as Male Student A (voice)
2022
Call of the Night
as Kai (voice)
2021
Hortensia SAGA
as Camellia Soldier (voice)
2021
Hortensia SAGA
as Soldier (voice)
2021
Hortensia SAGA
as Church Knight (voice)
2021
Re:ZERO -Starting Life in Another World-
as Roswaal B. Mathers (voice)
2021
I'm Standing on a Million Lives
as Maccahee (voice)
2020
Toilet-Bound Hanako-kun
as Male Classmate A (voice)
2020
I'm Standing on a Million Lives
as Nomura (voice)