Zenitsu Agatsuma’s Voice Actor in Demon Slayer: Hiro Shimono & Aleks Le

If you’re searching for Zenitsu Agatsuma’s voice actor in Demon Slayer: Kimetsu no Yaiba, the answer is this: in the Japanese version, Zenitsu is voiced by Hiro Shimono. In the English dub, the character is voiced by Aleks Le. The official Demon Slayer character page lists Zenitsu’s CV as Hiro Shimono (JPN) and Aleks Le (ENG).

Hiro Shimono is one of the best-known modern seiyuu for high-energy, emotionally reactive, and instantly recognizable performances, which makes him an especially strong fit for Zenitsu. His official agency profile includes Demon Slayer among his major anime credits, alongside long-running roles in Uta no Prince-sama, My Hero Academia, Attack on Titan, The Devil Is a Part-Timer!, and many other series.

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Japanese Voice Actor: Hiro Shimono

Date of Birth

April 21. Hiro Shimono’s official agency profile lists his birthday as April 21, and major public filmography references identify his birth year as 1980.

About Hiro

Hiro Shimono is a Japanese voice actor and singer affiliated with I’m Enterprise. He is widely known for playing energetic, anxious, comic, or deceptively intense characters, and Zenitsu Agatsuma is one of his most internationally recognized roles. Public reference sources and his agency profile also identify him with characters such as Connie Springer in Attack on Titan, Dabi in My Hero Academia, Keima Katsuragi in The World God Only Knows, Hanzo Urushihara in The Devil Is a Part-Timer!, and Sho Kurusu in Uta no Prince-sama.

Zenitsu is a particularly good showcase for Shimono’s range because the role swings between comedy, panic, vulnerability, and sudden combat intensity. That helps explain why the performance stands out so strongly even in a cast full of memorable voices. That final point is an inference based on the character’s writing and Shimono’s documented casting, rather than a direct quote from a reviewer.

Hometown

Tokyo, Japan. Hiro Shimono’s official agency profile lists his place of origin as Tokyo.

Career Highlights

Shimono’s career highlights stretch across major anime franchises and character types. His official profile lists major roles including Zenitsu Agatsuma in Demon Slayer, Sho Kurusu in Uta no Prince-sama, Dabi in My Hero Academia, Connie Springer in Attack on Titan, Hanzo Urushihara in The Devil Is a Part-Timer!, Keima Katsuragi in The World God Only Knows, Ayato Kamina in RahXephon, Yoshii Akihisa in Baka and Test, Sojiro in Log Horizon, and Momonosuke in One Piece.

He also has formal industry recognition. The official Seiyu Awards site lists him among the winners of the 15th Seiyu Awards, where he received the Best Lead Actor award. That is one of the clearest official indicators of his standing within the industry.

Full Current Filmography

The list below reflects documented credits from Hiro Shimono’s official agency profile, supplemented where needed by major public filmography references. Because no single public official page provides every role in one fully chronological master résumé, this should be treated as a structured list of documented credits rather than a guaranteed exhaustive filmography. The official agency profile is the main source for the credits below.

TV anime
Zenitsu Agatsuma — Demon Slayer: Kimetsu no Yaiba
Sho Kurusu — Uta no Prince-sama series
Dabi — My Hero Academia series
Connie Springer — Attack on Titan series
Hanzo Urushihara / Lucifer — The Devil Is a Part-Timer!
Keima Katsuragi — The World God Only Knows
Ayato Kamina — RahXephon
Akihisa Yoshii — Baka and Test
Haru Kasugano — Yosuga no Sora
Nai — Karneval
Kawakami Norifumi — Ace of Diamond
Jean Otus — ACCA: 13-Territory Inspection Dept.
Seiya Kanie is not a standard documented Shimono role and should not be attributed to him; his best-known official credits are those listed by his agency and major databases.

Additional documented TV anime credits from his official profile include:
Agate Fluorite — Cluster Edge
Tsubaki Sasuke — SKET Dance
Tajima Yuuichiro — Big Windup!
Isidro — Berserk
Arata — Arata: The Legend
Nobimaru — Kemono Jihen
Mitsuto Irido — My Stepmom’s Daughter Is My Ex
Rindou Haitani — Tokyo Revengers
Seiichi Hiiragi — The Fruit of Evolution
Sojiro — Log Horizon
Yuuto K. Steele — SoltyRei
Raishin Akabane — Unbreakable Machine-Doll
Arata Shindo — Talentless Nana
Peter Grill — Peter Grill and the Philosopher’s Time
Makoto Oda — Romantic Killer
Momonosuke — One Piece
Anubis — Oh, Suddenly Egyptian God
Kenta — Terminator Zero
Ai Saiwa — Haigakura
Uzukuro — Nmeneko
Kouichi — Everyday Host

Anime films
Orphee Lam Tao — Mobile Suit Gundam SEED Freedom
Tetsu — Cencoroll
Samna Sturgeon — EUREKA / Eureka Seven Hi-Evolution
Young Kenshiro — Fist of the North Star: The Legend of Raoh – Chapter of Fierce Fight
Rabbitzaki-senpai — The Gekijoban Zannen na Ikimono Jiten
Tokage / Yamori — Fortune Favors Lady Nikuko

Live-action dubbing and overseas works
Gary — Zootopia 2 Japanese dub
Lyle Menendez — Monsters: The Lyle and Erik Menendez Story Japanese dub
Tom Harris — Alex Rider Japanese dub
Snickers — The Garfield Movie Japanese dub
Boone — Twisters Japanese dub
Johnny — Heartbeat Japanese dub
Jake Salt — Famous in Love Japanese dub
Hudson — Game Shakers Japanese dub

Radio, web, narration, and other media
Shimono Hiro / Tatsumi Yuiko no Shosetsuka ni Narou Radio
Seiyu to Yoasobi
Narration credits listed by his agency include CDTV Live! Live!, The Ultra Powerful Class, Q-sama!!, Waratte Koraete!, and other Japanese television projects.

Music and artist activities
Shimono also has an official solo artist site documenting his music and event releases, reflecting a parallel singer career in addition to voice acting.

Critical Reception

Shimono’s public reputation is especially strong for roles that combine comic timing with sudden emotional or dramatic intensity, and Zenitsu is one of the clearest examples of that range. His official Best Lead Actor win at the 15th Seiyu Awards is the strongest formal recognition I could verify from an authoritative source.

In practical audience terms, Zenitsu is one of the roles most closely tied to his name internationally. Official and database profiles consistently foreground Demon Slayer among his best-known credits, which suggests the role remains one of his most search-relevant performances worldwide. That last point is an inference based on how official and reference sources present his credits.

Sources for further reading:
Zenitsu official character page (https://demonslayer-anime.com/eda/character/?id=03)
Hiro Shimono official agency profile (https://www.imenterprise.jp/profile.php?id=38)
Hiro Shimono official artist site (https://shimonohiro.com/)
15th Seiyu Awards winners (https://www.seiyuawards.jp/winning/winning_15/index.php)

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English Voice Actor: Aleks Le