Koki Koyasu

Actor

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Koki Koyasu

Actor

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Credits
22 titles

Past Film & Video (1 title)	Budget	Opening Weekend	Gross (US & Canada)	Gross (Worldwide)
Demon Slayer: Kimetsu no Yaiba Infinity Castle (2025) Actor (voice) Actor (voice) See fewer	$20MM	$71MM	$135MM	$721MM

Past Television (11 titles)	Episodes
The 100 Girlfriends Who Really, Really, Really, Really, REALLY Love You (2025) (TV Series) - Researcher C (voice) (1 episode, 2025) Researcher C (voice) (1 episode, 2025) See fewer The World Hair Only Grows (Mar 9, 2025) Season 2, Episode 9 - Researcher C (voice) Researcher C (voice) See fewer	1
Dandadan (2024) (TV Series) - Male Student A (voice) (1 episode, 2024) Male Student A (voice) (1 episode, 2024) See fewer Tama wa doko jan yo (Oct 31, 2024) Season 1, Episode 5 - Male Student A (voice) Male Student A (voice) See fewer	1
The Banished Former Hero Lives as He Pleases (2024) (TV Series) - Curtis (voice) (3 episodes, 2024) Curtis (voice) (3 episodes, 2024) See fewer The Conclusion and the Start of a New Journey (Jun 11, 2024) Season 1, Episode 12 - Curtis (voice) Curtis (voice) See fewer See more See fewer Loading	3
Demon Slayer: Kimetsu no Yaiba (2024) (TV Series) - Actor (voice) (1 episode, 2024) Actor (voice) (1 episode, 2024) See fewer To Bring a Smile to One's Face (Jun 2, 2024) Season 4, Episode 4 - Actor (voice) Actor (voice) See fewer	1
Berserk of Gluttony (2023) (TV Series) - Luke Barbatos (voice) (1 episode, 2023) Luke Barbatos (voice) (1 episode, 2023) See fewer The Twilight Swordsman (Nov 12, 2023) Season 1, Episode 7 - Luke Barbatos (voice) Luke Barbatos (voice) See fewer	1
Call of the Night (2022) (TV Series) - Kai (voice) (6 episodes, 2022) Kai (voice) (6 episodes, 2022) See fewer Totogazô o kakudai shite miru (Sep 9, 2022) Season 1, Episode 10 - Kai (voice) Kai (voice) See fewer See more See fewer Loading	6
Cinderella Nine (2019–2021) (TV Series) - Junior High School Boy / Kuramoto Chuo Senior Player / Shortstop (voice) (3 episodes, 2019) Junior High School Boy / Kuramoto Chuo Senior Player / Shortstop (voice) (3 episodes, 2019) See fewer The Story Continues (Sep 25, 2021) Season 1, Episode 13 - Shortstop (voice) Shortstop (voice) See fewer See more See fewer Loading	3
I'm Standing on a Million Lives (2020–2021) (TV Series) - Nomura / Maccahee (3 episodes, 2020) Nomura / Maccahee (3 episodes, 2020) See fewer We Can't Be Heroes of Justice (Jul 24, 2021) Season 2, Episode 3 - Maccahee Maccahee See fewer See more See fewer Loading	3
Hortensia Saga (2021) (TV Series) - Church Knight / Carmellia Soldier / Hortensia Soldier / Knight / Soldier (voice) (6 episodes, 2021) Church Knight / Carmellia Soldier / Hortensia Soldier / Knight / Soldier (voice) (6 episodes, 2021) See fewer Once Again - On the Hill at Sunset - (Mar 25, 2021) Season 1, Episode 12 - Knight (voice) Knight (voice) See fewer See more See fewer Loading	6
Arad: Gyakuten no Gear (2020) (TV Series) - Roy the Burning Pen (voice) (1 episode, 2020) Roy the Burning Pen (voice) (1 episode, 2020) See fewer Episode #1.0 (Apr 23, 2020) Season 1, Episode 0 - Roy the Burning Pen (voice) Roy the Burning Pen (voice) See fewer	1
Toilet-bound Hanako-kun (2020) (TV Series) - Fuji-kun / Male Classmate (voice) (2 episodes, 2020) Fuji-kun / Male Classmate (voice) (2 episodes, 2020) See fewer Misaki Kaidan: Sono Ichi (Jan 24, 2020) Season 1, Episode 3 - Male Classmate (voice) Male Classmate (voice) See fewer Yousei-san (Jan 17, 2020) Season 1, Episode 2 - Fuji-kun (voice) Fuji-kun (voice) See fewer	2

See all past television

Other (10 titles)
Inazuma Eleven: Victory Road (2025) (Video Game) - Kotani Shou (as Koyasu Kouki) Kotani Shou (as Koyasu Kouki) See fewer
Everybody's Golf: Hot Shots (2025) (Video Game) - Gangol (voice) Gangol (voice) See fewer
Eiyuden Chronicle: Hundred Heroes (2024) (Video Game) - Reid (voice) Reid (voice) See fewer
Master Detective Archives: Rain Code (2023) (Video Game) - Actor (voice) Actor (voice) See fewer
Fire Emblem: Engage (2023) (Video Game) - Pine (voice) Pine (voice) See fewer
Tower of Fantasy (2022) (Video Game) - Kanro (voice) Kanro (voice) See fewer
The Caligula Effect 2 (2021) (Video Game) - Jou Takihara (voice) Jou Takihara (voice) See fewer
Guilty Gear: Strive (2021) (Video Game) - Actor (voice) (as Kouki Koyasu) Actor (voice) (as Kouki Koyasu) See fewer
Buddy Mission Bond (2021) (Video Game) - Actor (voice) Actor (voice) See fewer
Langrisser Mobile (2019) (Video Game) - Ricky (voice) Ricky (voice) See fewer

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