Dimple (also known as Ekubo in Japanese) in Mob Psycho 100 is voiced by Akio Ōtsuka in the original Japanese version and Chris Niosi in the English dub. Both actors bring a distinct personality to the mischievous spirit, balancing humor, sarcasm, and surprising emotional depth.
Japanese Voice Actor: Akio Ōtsuka

Date of Birth
November 24, 1959
About Akio
Akio Ōtsuka is a legendary Japanese voice actor affiliated with Mausu Promotion, renowned for his deep, commanding voice and long-standing career in anime, video games, and dubbing. He is frequently cast as strong, authoritative, or morally complex characters. As Dimple, Ōtsuka showcases his versatility by leaning into a more comedic and sly performance while still maintaining a sense of underlying power.
Hometown
Tokyo, Japan
Career Highlights
- Dimple (Ekubo) – Mob Psycho 100
- Solid Snake – Metal Gear Solid series (Japanese voice)
- Blackbeard (Marshall D. Teach) – One Piece
- Batou – Ghost in the Shell
- All For One – My Hero Academia
- Thorkell – Vinland Saga
Ōtsuka’s iconic voice has made him one of the most recognizable figures in Japanese voice acting.
Full Current Filmography
Below is a documented selection of Akio Ōtsuka’s anime roles (based on verified sources; may not be exhaustive):
Anime Television & Films
- Mob Psycho 100 — Dimple (Ekubo)
- Mob Psycho 100 II — Dimple (Ekubo)
- Mob Psycho 100 III — Dimple (Ekubo)
- Ghost in the Shell — Batou
- One Piece — Marshall D. Teach (Blackbeard)
- My Hero Academia — All For One
- Vinland Saga — Thorkell
- Fate/Zero — Rider (Iskandar)
- Bungo Stray Dogs — Fukuzawa Yukichi
- Golden Kamuy — Toshizo Hijikata
Note: This list reflects documented credits from available sources and may not include every performance.
Critical Reception
Akio Ōtsuka’s portrayal of Dimple is widely praised for its balance of humor and gravitas. His deep voice adds an ironic contrast to Dimple’s often ridiculous behavior, enhancing both the comedic and dramatic moments. Fans frequently highlight how his performance elevates Dimple from a comic-relief character to a surprisingly emotional presence in the series.
Our Sources
- Behind The Voice Actors – Dimple (https://www.behindthevoiceactors.com/tv-shows/Mob-Psycho-100/Dimple/)
- Wikipedia – Akio Ōtsuka (https://en.wikipedia.org/wiki/Akio_Otsuka)
- Anime News Network – Akio Ōtsuka Encyclopedia (https://www.animenewsnetwork.com/encyclopedia/people.php?id=83)
- Official Mob Psycho 100 credits (https://mobpsycho100.com/)

