Ryunosuke Akutagawa, the ruthless Port Mafia assassin from Bungo Stray Dogs, is voiced by Kensho Ono in Japanese and Robbie Daymond in the English dub. Both actors bring intensity and emotional depth to Akutagawa’s cold personality, deadly combat scenes, and obsessive rivalry with Atsushi Nakajima. (behindthevoiceactors.com)
Japanese Voice Actor: Kensho Ono
Kensho Ono voices Ryunosuke Akutagawa in the Japanese version of Bungo Stray Dogs. His controlled, sharp delivery perfectly reflects Akutagawa’s emotionless demeanor, explosive rage, and desperate desire for recognition from Osamu Dazai. (behindthevoiceactors.com)
Date of Birth
October 5, 1989
About Kensho
Kensho Ono is a Japanese actor, voice actor, and singer affiliated with Amuse. Beginning his career as a child actor, he became internationally known after voicing Harry Potter in the Japanese dub film series before transitioning into anime voice acting.
His portrayal of Ryunosuke Akutagawa is widely praised for balancing quiet menace with emotional instability, especially during Akutagawa’s confrontations with Atsushi and Dazai. Ono is known for voicing calm but emotionally layered characters across anime and games.
He is also married to fellow voice actress Kana Hanazawa.
Hometown
Fukuoka Prefecture, Japan
Career Highlights
- Ryunosuke Akutagawa — Bungo Stray Dogs
- Tetsuya Kuroko — Kuroko’s Basketball
- Giorno Giovanna — JoJo’s Bizarre Adventure: Golden Wind
- Floch Forster — Attack on Titan
- Mikaela Hyakuya — Seraph of the End
- Canute — Vinland Saga
- Yuri Briar — Spy x Family
- Harry Potter — Japanese dub film series
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 — Ryunosuke Akutagawa
- Kuroko’s Basketball — Tetsuya Kuroko
- JoJo’s Bizarre Adventure: Golden Wind — Giorno Giovanna
- Attack on Titan — Floch Forster
- Seraph of the End — Mikaela Hyakuya
- Vinland Saga — Canute
- Spy x Family — Yuri Briar
- Aldnoah.Zero — Slaine Troyard
- Boruto: Naruto Next Generations — Shikadai Nara
- Black Clover — Langris Vaude
- The Rising of the Shield Hero — L’Arc Berg
- Blue Exorcist — Amaimon (certain projects)
Anime Films
- A Silent Voice — Tomohiro Nagatsuka
- Mobile Suit Gundam Hathaway — Lane Aim
- Dragon Ball Super: Super Hero — Additional Voices
Video Games
- Genshin Impact — Diluc (Japanese voice)
- Granblue Fantasy — Voice Roles
- Fire Emblem Heroes — Various Characters
Critical Reception
Kensho Ono has received praise for his subtle but emotionally intense acting style. Fans of Bungo Stray Dogs frequently highlight his portrayal of Akutagawa for making the character simultaneously terrifying, tragic, and emotionally compelling.
Our Sources
Behind The Voice Actors – Ryunosuke Akutagawa (https://www.behindthevoiceactors.com/tv-shows/Bungo-Stray-Dogs/Ryunosuke-Akutagawa/)
Anime News Network Encyclopedia – Kensho Ono (https://www.animenewsnetwork.com/encyclopedia/people.php?id=38165)
Amuse Official Profile (https://www.amuse.co.jp/artist/A8432/)
Bungo Stray Dogs Official Anime Website (https://bungosd.com/)
Social Media
Instagram: https://www.instagram.com/kenshoono1005/
X (Twitter): https://x.com/ono_kensho
English Voice Actor: Robbie Daymond
Robbie Daymond voices Ryunosuke Akutagawa in the English dub of Bungo Stray Dogs. His performance captures Akutagawa’s cold intensity, violent rage, and emotional instability, especially during the character’s brutal confrontations with Atsushi Nakajima and his desperate pursuit of Dazai’s approval. (behindthevoiceactors.com)
Date of Birth
March 11, 1982
About Robbie
Robbie Daymond is an American voice actor known for his extensive work in anime, video games, and animation. Over the years, he has become recognized for portraying intelligent rivals, emotionally conflicted antiheroes, and charismatic protagonists.
His portrayal of Ryunosuke Akutagawa is widely praised for emphasizing the character’s dangerous unpredictability while still revealing the insecurity and emotional pain beneath his ruthless personality. Daymond’s dramatic vocal range has made him one of the most recognizable English dub actors in anime.
Hometown
Chesterfield, Missouri, USA
Career Highlights
- Ryunosuke Akutagawa — Bungo Stray Dogs
- Megumi Fushiguro — Jujutsu Kaisen
- Goro Akechi — Persona 5
- Tuxedo Mask — Sailor Moon Crystal
- Prompto Argentum — Final Fantasy XV
- Hubert von Vestra — Fire Emblem: Three Houses
- Kayn — League of Legends
- Spider-Man — Various Marvel animated 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 — Ryunosuke Akutagawa
- Jujutsu Kaisen — Megumi Fushiguro
- Sailor Moon Crystal — Tuxedo Mask / Mamoru Chiba
- Demon Slayer — Haganezuka
- Blue Exorcist — Rin Okumura (certain media)
- JoJo’s Bizarre Adventure — Additional Voices
- Fate/Apocrypha — Sieg
- One-Punch Man — Mumen Rider
- The Seven Deadly Sins — Gloxinia
Video Games
- Persona 5 — Goro Akechi
- Final Fantasy XV — Prompto Argentum
- Fire Emblem: Three Houses — Hubert von Vestra
- League of Legends — Kayn
- Honkai: Star Rail — Voice Roles
- Marvel’s Spider-Man — Additional Voices
- Genshin Impact — Additional Voices
Animation & Other Media
- Ben 10 — Additional Voices
- Marvel Animated Projects — Spider-Man
- Netflix Animation — Various Roles
Critical Reception
Robbie Daymond is widely respected for his emotional performances and sharp character work. Fans of Bungo Stray Dogs often praise his portrayal of Akutagawa for balancing terrifying aggression with emotional vulnerability, helping make the character one of the series’ most memorable antagonists and antiheroes.
Our Sources
Behind The Voice Actors – Ryunosuke Akutagawa (https://www.behindthevoiceactors.com/tv-shows/Bungo-Stray-Dogs/Ryunosuke-Akutagawa/)
Behind The Voice Actors – Robbie Daymond (https://www.behindthevoiceactors.com/Robbie-Daymond/)
Anime News Network Encyclopedia (https://www.animenewsnetwork.com/encyclopedia/people.php?id=64429)
Bungo Stray Dogs Official Anime Website (https://bungosd.com/)
Social Media
X (Twitter): https://x.com/robbiedaymond
Instagram: https://www.instagram.com/robbiedaymond/
