- Language
- Japanese
- Occupation
- Voice Actor
- Gender
- Male
- Date of birth
- 1994-01-09
- Hometown
- Tokyo, Japan
Kouki Koyasu
子安光樹
Signature roles
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Toilet-bound Hanako-kun
as Fuji Suzuto
2020
♡ 8
Call of the Night
as Kai
2022
♡ 7
Call of the Night Season 2
as Kai
2025
♡ 7
GNOSIA
as Sonohokasei
2025
♡ 3
The Banished Former Hero Lives as He Pleases
as Curtis
2024
♡ 1
DAN DA DAN
as Danshi Seito A
2024
♡ 1
I'm Standing on a Million Lives Season 2
as Makahi
2021
Shadowverse Flame: Arc-hen
as Omas no Tomodachi
2024
Career timeline
1
1
1
3
2
20202025
Frequent co-stars
Frequently asked questions
What is Kouki Koyasu's name in other languages?
Kouki Koyasu is also known as 子安光樹.
When is Kouki Koyasu's birthday?
Kouki Koyasu was born on January 9, 1994.
How old is Kouki Koyasu?
Kouki Koyasu is 32 years old.
What is Kouki Koyasu's gender?
Kouki Koyasu is male.
What does Kouki Koyasu do?
Kouki Koyasu works as Voice Actor.
What language does Kouki Koyasu voice in?
Kouki Koyasu performs in Japanese.
Where is Kouki Koyasu from?
Kouki Koyasu is from Tokyo, Japan.