Osamu Dazai, the eccentric and brilliant detective from Bungo Stray Dogs, is voiced by Mamoru Miyano in Japanese and Kaiji Tang in the English dub. Both actors are widely praised for capturing Dazai’s unpredictable humor, dark intelligence, and emotionally layered personality throughout the series. (behindthevoiceactors.com)
Japanese Voice Actor: Mamoru Miyano
Mamoru Miyano voices Osamu Dazai in the Japanese version of Bungo Stray Dogs. His charismatic performance blends comedy, mystery, and emotional intensity, making Dazai one of the anime’s most iconic characters. (behindthevoiceactors.com)
Date of Birth
June 8, 1983
About Mamoru
Mamoru Miyano is one of Japan’s most celebrated voice actors and singers. Beginning his career as a child actor, he later became internationally recognized for starring in major anime franchises and award-winning performances.
His portrayal of Osamu Dazai is often praised for balancing the character’s comedic suicidal jokes with his manipulative brilliance and darker emotional undertones. Miyano’s expressive acting style and strong stage presence have made him one of the most influential modern seiyuu.
In addition to voice acting, he has released multiple music albums and performs as a live entertainer in Japan.
Hometown
Saitama Prefecture, Japan
Career Highlights
- Osamu Dazai — Bungo Stray Dogs
- Light Yagami — Death Note
- Rintaro Okabe — Steins;Gate
- Setsuna F. Seiei — Mobile Suit Gundam 00
- Chrollo Lucilfer — Hunter × Hunter (2011)
- Atsumu Miya — Haikyuu!!
- Rin Matsuoka — Free!
- Douma — Demon Slayer
Full Current Filmography
The following list reflects documented major anime voice roles from publicly available sources and may not be exhaustive.
Television Anime
- Bungo Stray Dogs — Osamu Dazai
- Death Note — Light Yagami
- Steins;Gate — Rintaro Okabe
- Mobile Suit Gundam 00 — Setsuna F. Seiei
- Hunter × Hunter (2011) — Chrollo Lucilfer
- Free! — Rin Matsuoka
- Haikyuu!! — Atsumu Miya
- Demon Slayer — Douma
- Ouran High School Host Club — Tamaki Suoh
- Uta no Prince-sama — Tokiya Ichinose
- K Project — Saruhiko Fushimi
- Tokyo Ghoul — Shu Tsukiyama
- Soul Eater — Death the Kid
- Zombieland Saga — Kotaro Tatsumi
Anime Films
- Suzume — Tomoya Serizawa
- Dragon Ball Super: Super Hero — Gamma 1
- Persona 3 Movies — Ryoji Mochizuki
Video Games
- Kingdom Hearts — Riku
- Persona 5 — Ryoji Mochizuki (certain projects)
- Final Fantasy VII Rebirth — Additional Voices
- Genshin Impact — Voice Roles
Critical Reception
Mamoru Miyano is widely regarded as one of the strongest performers in modern anime voice acting. His portrayal of Osamu Dazai has received particular acclaim for effortlessly shifting between absurd comedy and chilling seriousness, helping define Dazai as one of Bungo Stray Dogs’ standout characters.
Our Sources
Behind The Voice Actors – Osamu Dazai (https://www.behindthevoiceactors.com/tv-shows/Bungo-Stray-Dogs/Osamu-Dazai/)
Anime News Network Encyclopedia – Mamoru Miyano (https://www.animenewsnetwork.com/encyclopedia/people.php?id=4594)
Official Mamoru Miyano Website (https://miyanomamoru.com/)
Bungo Stray Dogs Official Anime Website (https://bungosd.com/)
Social Media
Instagram: https://www.instagram.com/mamoru_miyano_official/
X (Twitter): https://x.com/miyanomamoru_PR
English Voice Actor: Kaiji Tang
Kaiji Tang voices Osamu Dazai in the English dub of Bungo Stray Dogs. His smooth delivery, dry humor, and dramatic emotional range perfectly match Dazai’s unpredictable personality and manipulative brilliance throughout the series. (behindthevoiceactors.com)
Date of Birth
January 25, 1984
About Kaiji
Kaiji Tang is an American voice actor known for anime dubbing, video games, and animation. Over the years, he has built a reputation for voicing charismatic antiheroes, intelligent strategists, and emotionally intense characters.
His portrayal of Osamu Dazai is considered one of his most recognizable anime performances, especially because of how naturally he transitions between Dazai’s comedic moments and darker psychological scenes. Tang is also highly active in the gaming industry, where he has voiced major characters in globally popular titles.
Hometown
Los Angeles, California, USA
Career Highlights
- Osamu Dazai — Bungo Stray Dogs
- Satoru Gojo — Jujutsu Kaisen
- Ichiban Kasuga — Like a Dragon
- Archer — Fate/stay night: Unlimited Blade Works
- Jinshi — The Apothecary Diaries
- Owain/Odin — Fire Emblem
- Sanemi Shinazugawa — Demon Slayer
- Joe Zieja’s rival roles in multiple games and anime projects
Full Current Filmography
The following list reflects documented major voice acting credits from publicly available sources and may not be exhaustive.
Anime
- Bungo Stray Dogs — Osamu Dazai
- Jujutsu Kaisen — Satoru Gojo
- Demon Slayer — Sanemi Shinazugawa
- The Apothecary Diaries — Jinshi
- Fate/stay night: Unlimited Blade Works — Archer
- JoJo’s Bizarre Adventure — Santana
- Mobile Suit Gundam: Iron-Blooded Orphans — McGillis Fareed
- One-Punch Man — Atomic Samurai
- Blue Exorcist — Additional Voices
- Sword Art Online — Additional Voices
Video Games
- Like a Dragon: Infinite Wealth — Ichiban Kasuga
- Fire Emblem Awakening — Owain
- Fire Emblem Fates — Odin Dark
- Genshin Impact — Heizou
- Marvel’s Midnight Suns — Doctor Strange
- World of Warcraft — Multiple Characters
- Street Fighter 6 — Voice Roles
Animation & Other Media
- Lego Monkie Kid — Additional Voices
- Netflix Animated Projects — Various Roles
Critical Reception
Kaiji Tang is widely praised for his confident vocal delivery and charismatic performances. Fans of Bungo Stray Dogs frequently highlight his work as Dazai for capturing the character’s playful manipulation, emotional complexity, and darker undertones without losing the charm that defines him.
Our Sources
Behind The Voice Actors – Osamu Dazai (https://www.behindthevoiceactors.com/tv-shows/Bungo-Stray-Dogs/Osamu-Dazai/)
Behind The Voice Actors – Kaiji Tang (https://www.behindthevoiceactors.com/Kaiji-Tang/)
Crunchyroll – Bungo Stray Dogs Dub Information (https://www.crunchyroll.com/)
Anime News Network Encyclopedia (https://www.animenewsnetwork.com/encyclopedia/people.php?id=86567)
Social Media
X (Twitter): https://x.com/KaijiTang
Instagram: https://www.instagram.com/kaijitang/
