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Recent Release

Reiwa ni Kannou Shousetsu Tsukuttemasu

Jan 8, 2026 TV Series

Koki Koyasu

Acting

Born Jan 09, 1994 (32 years old)

Place of Birth Tokyo, Japan

Gender Male

Popularity 1.3

IMDb View on IMDb

Also Known As Kouki Koyasu, 子安光樹, Kōki Koyasu +1 more

Biography

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.

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.

Credits

Re:ZERO -Starting Life in Another World-

Re:ZERO -Starting Life in Another World-

Roswaal B. Mathers (voice)

Re:ZERO -Starting Life in Another World-

Roswaal B. Mathers (voice)

Dan Da Dan

Male Student A (voice)

Male Student A (voice)

Call of the Night

Call of the Night

2022 10 eps 7.7

Call of the Night

Demon Slayer: Kimetsu no Yaiba

Demon Slayer: Kimetsu no Yaiba

Demon Slayer: Kimetsu no Yaiba

Toilet-Bound Hanako-kun

Toilet-Bound Hanako-kun

Male Classmate A (voice)

Toilet-Bound Hanako-kun

Male Classmate A (voice)

I'm Standing on a Million Lives

I'm Standing on a Million Lives

I'm Standing on a Million Lives

I'm Standing on a Million Lives

I'm Standing on a Million Lives

Maccahee (voice)

I'm Standing on a Million Lives

Maccahee (voice)

Hortensia SAGA

Camellia Soldier (voice)

Camellia Soldier (voice)

Hortensia SAGA

Soldier (voice)

Soldier (voice)

Hortensia SAGA

Church Knight (voice)

Church Knight (voice)

Reiwa ni Kannou Shousetsu Tsukuttemasu

Reiwa ni Kannou Shousetsu Tsukuttemasu

Reiwa ni Kannou Shousetsu Tsukuttemasu

Gallery

Koki Koyasu