Kousuke Oonishi

Born: 1991-05-07

Kousuke Oonishi (大西 弘祐, Ōnishi Kōsuke, born May 7, 1991) is a Japanese voice actor (seiyū) from Saitama prefecture who is associated with Arts Vision. He graduated from the Nihon Narration Engi Kenkyūjo (Japan Narration Acting School). His hobbies and special skills are puns and singing.


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Jujutsu Kaisen 0

as Passerby (voice)
Released: 2021-12-24

Yuta Okkotsu is a nervous high school student who is suffering from a serious problem—his...

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Chainsaw Man

as Henchman C (voice)
First aired: 2022-10-12

Denji has a simple dream—to live a happy and peaceful life, spending time with a girl he likes....

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Sword Art Online

as Player (voice)
First aired: 2012-07-08

In the near future, a Virtual Reality Massive Multiplayer Online Role-Playing Game (VRMMORPG)...

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The Ancient Magus' Bride

as Martin Chandler (voice)
First aired: 2017-10-08

Hatori Chise has lived a life full of neglect and abuse, devoid of anything resembling love. Far...

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The Ancient Magus' Bride

as Student A (voice)
First aired: 2017-10-08

Hatori Chise has lived a life full of neglect and abuse, devoid of anything resembling love. Far...

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The Ancient Magus' Bride

as Transfigured Sorcerer (voice)
First aired: 2017-10-08

Hatori Chise has lived a life full of neglect and abuse, devoid of anything resembling love. Far...

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The Ancient Magus' Bride

as Man from the Neighborhood (voice)
First aired: 2017-10-08

Hatori Chise has lived a life full of neglect and abuse, devoid of anything resembling love. Far...

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The Ancient Magus' Bride

as Buyer (voice)
First aired: 2017-10-08

Hatori Chise has lived a life full of neglect and abuse, devoid of anything resembling love. Far...

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The Ancient Magus' Bride

as Person from Joseph's Village (voice)
First aired: 2017-10-08

Hatori Chise has lived a life full of neglect and abuse, devoid of anything resembling love. Far...

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The Ancient Magus' Bride

as Chise's Classmate (voice)
First aired: 2017-10-08

Hatori Chise has lived a life full of neglect and abuse, devoid of anything resembling love. Far...

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The Ancient Magus' Bride

as Gatekeeper (voice)
First aired: 2017-10-08

Hatori Chise has lived a life full of neglect and abuse, devoid of anything resembling love. Far...

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Cells at Work!

as Intestinal Epithelial Cell 1 (voice)
First aired: 2018-07-08

This is a story about you. A tale about the inside of your body... According to a new study, the...

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Campfire Cooking in Another World with My Absurd Skill

as Adventurer C (voice)
First aired: 2023-01-11

Tsuyoshi Mukohda, an ordinary salaryman, is suddenly transported to another world one day. The...

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Campfire Cooking in Another World with My Absurd Skill

as City ​​People (voice)
First aired: 2023-01-11

Tsuyoshi Mukohda, an ordinary salaryman, is suddenly transported to another world one day. The...

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Campfire Cooking in Another World with My Absurd Skill

as Soldier B (voice)
First aired: 2023-01-11

Tsuyoshi Mukohda, an ordinary salaryman, is suddenly transported to another world one day. The...

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Bibliophile Princess

as Man at the Market (voice)
First aired: 2022-10-06

When book-loving Lady Elianna spots Prince Christopher—her betrothed in name only—consorting...

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Terminator Zero

as Paramedic (voice)
First aired: 2024-08-29

A warrior from a post-apocalyptic future travels to 1997 to protect an AI scientist being hunted...

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The God of High School

as Doctor (voice)
First aired: 2020-07-06

When an island half-disappears from the face of the earth, a mysterious organization sends out...

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The God of High School

as Store Manager (voice)
First aired: 2020-07-06

When an island half-disappears from the face of the earth, a mysterious organization sends out...

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The God of High School

as Delinquent (voice)
First aired: 2020-07-06

When an island half-disappears from the face of the earth, a mysterious organization sends out...

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The God of High School

as Guard (voice)
First aired: 2020-07-06

When an island half-disappears from the face of the earth, a mysterious organization sends out...

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The God of High School

as YES MAN (voice)
First aired: 2020-07-06

When an island half-disappears from the face of the earth, a mysterious organization sends out...

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The God of High School

as Secretary (voice)
First aired: 2020-07-06

When an island half-disappears from the face of the earth, a mysterious organization sends out...

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The God of High School

as Spectator (voice)
First aired: 2020-07-06

When an island half-disappears from the face of the earth, a mysterious organization sends out...

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The Faraway Paladin

as Villager (voice)
First aired: 2021-10-09

In a city of the dead, long since ruined and far from human civilization, lives a single human...

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The Faraway Paladin

as Adventurer (voice)
First aired: 2021-10-09

In a city of the dead, long since ruined and far from human civilization, lives a single human...

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The Faraway Paladin

as Knight (voice)
First aired: 2021-10-09

In a city of the dead, long since ruined and far from human civilization, lives a single human...

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Citrus

as Man (voice)
First aired: 2018-01-06

Yuzu, a high school gyaru who hasn't experienced her first love yet, transfers to an all-girls...

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The Café Terrace and Its Goddesses

as Fishmonger's Companion (voice)
First aired: 2023-04-08

After inheriting his late grandmother’s failing café, Hayato sees it as a bother and plans to...

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Reborn to Master the Blade: From Hero-King to Extraordinary Squire ♀

as Knight (voice)
First aired: 2023-01-10

After living a life devoted to serving his country and people, Inglis’ one wish to be free of a...

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Noblesse

as M-21 (voice)
First aired: 2020-10-08

Rai wakes up from 820-years long sleep and starts his new life as a student in a high school...

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JOKER GAME

as Corporal Nobuteru Miyata (voice)
First aired: 2016-04-05

Taking place in the year 1937 on the eve of World War II, the story involves a mysterious spy...

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The Saint's Magic Power Is Omnipotent

as Young officer (voice)
First aired: 2021-04-06

Sei, a 20-year-old office worker, is whisked away to a whole new world. Unfortunately for Sei,...

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The Saint's Magic Power Is Omnipotent

as Chef (voice)
First aired: 2021-04-06

Sei, a 20-year-old office worker, is whisked away to a whole new world. Unfortunately for Sei,...

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The Saint's Magic Power Is Omnipotent

as Soldier (voice)
First aired: 2021-04-06

Sei, a 20-year-old office worker, is whisked away to a whole new world. Unfortunately for Sei,...

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The Saint's Magic Power Is Omnipotent

as Civil official (voice)
First aired: 2021-04-06

Sei, a 20-year-old office worker, is whisked away to a whole new world. Unfortunately for Sei,...

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The Saint's Magic Power Is Omnipotent

as Alchemist (voice)
First aired: 2021-04-06

Sei, a 20-year-old office worker, is whisked away to a whole new world. Unfortunately for Sei,...

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Domestic Girlfriend

as Youth A (voice)
First aired: 2019-01-12

Natsuo is a high school boy who is experiencing the crushing despair of unrequited love. To make...

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Is It Wrong to Try to Pick Up Girls in a Dungeon? On the Side: Sword Oratoria

as Member (voice)
First aired: 2017-04-15

After having descended upon this world, the gods have created guilds where adventurers can test...

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Vinland Saga

as Member of Askeladd's Mercenaries (voice)
First aired: 2019-07-08

For a thousand years, the Vikings have made quite a name and reputation for themselves as the...

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Vinland Saga

as Interpreter of Jabbathe's Forces (voice)
First aired: 2019-07-08

For a thousand years, the Vikings have made quite a name and reputation for themselves as the...

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Vinland Saga

as English Soldier (voice)
First aired: 2019-07-08

For a thousand years, the Vikings have made quite a name and reputation for themselves as the...

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Vinland Saga

as Viking of Thorkell's Troops (voice)
First aired: 2019-07-08

For a thousand years, the Vikings have made quite a name and reputation for themselves as the...

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Vinland Saga

as Soldier of the English Army (voice)
First aired: 2019-07-08

For a thousand years, the Vikings have made quite a name and reputation for themselves as the...

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My Daemon

as Soldier 3 (voice)
First aired: 2023-11-23

To save his mother, a kind-hearted boy and his tiny daemon friend set out on a journey across...

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My Daemon

as Soldier 2 (voice)
First aired: 2023-11-23

To save his mother, a kind-hearted boy and his tiny daemon friend set out on a journey across...

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My Daemon

as Soldiers (voice)
First aired: 2023-11-23

To save his mother, a kind-hearted boy and his tiny daemon friend set out on a journey across...

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Haigakura

as Dragon Warrior (voice)
First aired: 2024-10-07

The story is set in a secluded realm where deities and mortals both dwell. A youth named Ichiyō...

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Haigakura

as Islander (voice)
First aired: 2024-10-07

The story is set in a secluded realm where deities and mortals both dwell. A youth named Ichiyō...

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Haigakura

as Child (voice)
First aired: 2024-10-07

The story is set in a secluded realm where deities and mortals both dwell. A youth named Ichiyō...

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Haigakura

as Kashi (voice)
First aired: 2024-10-07

The story is set in a secluded realm where deities and mortals both dwell. A youth named Ichiyō...

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Haigakura

as Soldier (voice)
First aired: 2024-10-07

The story is set in a secluded realm where deities and mortals both dwell. A youth named Ichiyō...

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Flowers of Evil

as Class 1, Year 2 (voice)
First aired: 2013-04-05

The corrupt pure-love story revolves around Kasuga Takao, a bookish boy who loves the poems of...

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