
Katsunori Okai
Known for Acting · 41 credits
- Place of birth
- Hyogo, Japan
- Also known as
- 岡井 カツノリ · 岡井克升 · おかい カツノリ
Biography
Katsunori Okai (岡井カツノリ, Okai Katsunori, October 8) is a Japanese voice actor from Hyogo Prefecture affiliated with Kenyu Office. His former stage name is 岡井克升 (same reading).
Known For

JUJUTSU KAISEN
2020
as Human Earthworm (voice)

Frieren: Beyond Journey's End
2023
as Barkeeper (voice) / Ship's Captain (voice)

SPY x FAMILY
2022
as WISE Agent (voice) / Driver (voice) / Man in Black (voice) / Audience (voice) / Eden College Teacher (voice) / Man from Enemy Organization (voice) / Announcer (voice) / Researcher (voice) / Jeeves (voice) / Doctor (voice) / Colonel Zacharis (voice) / State Security Service Agent (voice) / Quill (voice) / Newscaster (voice) / Berlint General Hospital Doctor (voice)

The Apothecary Diaries
2023
as Eunuch (voice)

Mushoku Tensei: Jobless Reincarnation
2021
as Postman (voice)

The Ancient Magus' Bride
2017
as Seth's Father (voice) / Relative (voice)
TV Shows (37)

JUJUTSU KAISEN
2020
as Human Earthworm (voice)

Frieren: Beyond Journey's End
2023
as Barkeeper (voice) / Ship's Captain (voice)

SPY x FAMILY
2022
as WISE Agent (voice) / Driver (voice) / Man in Black (voice) / Audience (voice) / Eden College Teacher (voice) / Man from Enemy Organization (voice) / Announcer (voice) / Researcher (voice) / Jeeves (voice) / Doctor (voice) / Colonel Zacharis (voice) / State Security Service Agent (voice) / Quill (voice) / Newscaster (voice) / Berlint General Hospital Doctor (voice)

The Apothecary Diaries
2023
as Eunuch (voice)

Mushoku Tensei: Jobless Reincarnation
2021
as Postman (voice)

The Ancient Magus' Bride
2017
as Seth's Father (voice) / Relative (voice)

Rurouni Kenshin
2023
as Shishio's Subordinate (voice)

Attack on Titan
2013
as Man (voice)

The Eminence in Shadow
2022
as Cult Soldier (voice) / Audience (voice) / Knight (voice)

BEASTARS
2019
as Fox (voice)

Lazarus
2025
as Entourage (voice)

Moriarty the Patriot
2020
as Ames (voice) / Herschel (voice) / Railway police (voice)

The Dangers in My Heart
2023
as Customer B (voice)

Sacrificial Princess and the King of Beasts
2023
as Reptilian Clan Member (voice) / Citizen D (voice)

ALL OUT!!
2016
as Shouta Kibi (voice)

My Hero Academia: Vigilantes
2025
as MAD HATTER Akira (voice)

Ascendance of a Bookworm
2019
as Gunther's Colleague (voice) / Ancient Egyptian (voice) / Receptionist (voice) / Blue Priest (voice) / Gray Priest (voice) / Egmont (voice) / Zahm (voice) / Gilberta Company Employee (voice) / Ingo (voice) / Attendant (voice) / Man (voice) / Artisan (voice) / Giebe Groschel (voice)

My Love Story with Yamada-kun at Lv999
2023
as (voice)

Uzaki-chan Wants to Hang Out!
2020
as Kuroki (voice)

Blue Box
2024
as Club Member (voice)

The Gymnastics Samurai
2020
as Ninja show moderator (voice) / Male announcer (voice) / Voice C (voice) / Moderator (voice)

Uncle from Another World
2022
as Deliveryman (voice)

2.5 Dimensional Seduction
2024
as Camera Guy B (voice)

Delico's Nursery
2024
as Resident (voice)

Management of a Novice Alchemist
2022
as Vicious Alchemist (voice) / Gray (voice)

Parallel World Pharmacy
2022
as Ship Doctor (voice)

Chillin' in Another World with Level 2 Super Cheat Powers
2024
as Liuris (voice)

Suicide Squad Isekai
2024
as Man (voice) / Soldier (voice)

The Magical Revolution of the Reincarnated Princess and the Genius Young Lady
2023
as Veteran Adventurer (voice)

Love of Kill
2022
as Amy (voice) / Member (voice) / Tom (voice) / Boris (voice)

Anyway, I'm Falling in Love with You.
2025
as Yamamoto (voice)

Kiyo in Kyoto: From the Maiko House
2021
as Customer (voice)

Arifureta: From Commonplace to World's Strongest
2019
as Thief B (voice)

April Showers Bring May Flowers
2025
as Male Student (voice)

Moonrise
2025
as Georg Landry (voice)

Touring After the Apocalypse
2025
as Voice Flying Around (voice) / Man (voice)

FLAGLIA: Story of Summer Vacation
2023
as Mythril (voice)
Movies (4)
About Katsunori Okai
Katsunori Okai (岡井カツノリ, Okai Katsunori, October 8) is a Japanese voice actor from Hyogo Prefecture affiliated with Kenyu Office. His former stage name is 岡井克升 (same reading). With 41 credits spanning from 2013 to 2025, Katsunori Okai has appeared in 4 films and 37 TV shows.
Fans searching for Katsunori Okai movies, Katsunori Okai filmography, or the latest projects starring Katsunori Okai can stream many of these titles on CineFlixo, free and in HD, with no subscription required.
Most Popular Katsunori Okai Movies
- SPY x FAMILY CODE: White (2023) — as Bernardo (voice)
- Rascal Does Not Dream of a Sister Venturing Out (2023) — as Male Student (voice)
- GREAT PRETENDER razbliuto (2024) — as Ando (Detective) (voice)
- Woke-Up-as-a-Girl Syndrome (2025) — as Toshihide Teacher (voice)
Where to Watch Katsunori Okai Films
Most Katsunori Okai movies and series are available to stream on CineFlixo in full HD, completely free and without signup. Browse the complete filmography above to jump directly to any title. For more films and the latest web series featuring Katsunori Okai, check our movies catalogue and browse page.


