Akio Otsuka is a Japanese voice actor affiliated with Mausu Promotion. He is the son of fellow voice actor Chikao Otsuka. In February 2005, he married voice actress Yoko Soumi, but later divorced her in 2009.
as Yujiro Hanma
as Yuzan Kaibara (voice)(1 ep)
as Space Agency Bureau Director (voice)
as Mask of the Warrior God (voice)(12 eps)
as Barak Zar (voice)(1 ep)
as Narrator (voice)(2 eps)
as Dimple (voice) (archive footage)
as Minoru Tonda (voice)(1 ep)
as Mogura (voice)(24 eps)
as Shunsui Kyoraku (voice)
as Jyuugo Yokomizo (voice)
as Issho Arakawa (voice)(8 eps)
as Uppi (voice)(1 ep)
as Narrator (voice)(1 ep)
as Kenkichi Sonoi (voice)
as Zenoff (voice)(12 eps)
as Ahriman (voice)(12 eps)
as Rivera Feyerabend (voice)(13 eps)
as 十王邦夫 (juuou kunio) (voice)(11 eps)
as Coffeehouse Owner (voice)
as Bundus Begalkeit (voice)(1 ep)
as Daisuke Jigen (voice)
as DEX (voice)
as Daisuke Jigen (voice)
as Professor Macaron (voice)
as Kuroo Hazama (voice)
as Hajime Shinshiro (voice)(1 ep)
as Mysterious Man (voice)(2 eps)
as Abel (voice)(8 eps)
as Aquaman (voice)
as General Bouille (voice)
as Maou (voice)(12 eps)
as Muneharu Murota (voice)(4 eps)
as Dodge's Driver (voice)
as Rimel (voice)(10 eps)
as Third Eye Narration (voice)(1 ep)
as Tono (voice)(24 eps)
as Soun Tendo (voice)(17 eps)
as Gark Welter (voice)(24 eps)
as All for One (voice)
as Strong The Budo (voice)(22 eps)
as Logwell (voice)(24 eps)
as Brance (voice)(12 eps)
as Yujiro Hanma (voice)
as Takeshi Ebihara (voice)(25 eps)
as Majin Grimoire (voice)(1 ep)
as Dougen Machida (voice)(3 eps)
as Chōnbo (voice)(12 eps)
as Batou (voice)
as Musashi Miyamoto (voice)(8 eps)
as BJ (voice)(1 ep)
as Shiro / Kojiro Arima (voice)(12 eps)
as Varghese (voice)(1 ep)
as Weissasche (voice)(51 eps)
as Daisuke Jigen (voice)
as Satan (voice)
as Brod (voice)(12 eps)
as Master Alude (voice)(6 eps)
as Self - Voice Actor(1 ep)
as Daisuke Jigen (voice)
as King Arnold (voice)(4 eps)
as Narrator (voice)(37 eps)
as Kubo (voice)(12 eps)
as Commander Bark (voice)(8 eps)
as Demolition Shop (voice)(1 ep)
as Ancient Dragon (voice)(1 ep)
as Edith (voice)(1 ep)
as (voice)(1 ep)
as Gerald Kano (voice)(12 eps)
as Kōtarō Izawa (voice)(2 eps)
as Narrator (voice)(48 eps)
as Hajime Shinshiro / Narration (voice)
as Steve H. Foster (voice)(6 eps)
as Seido Hishigata (voice)(25 eps)
as WISE Director (voice)(3 eps)
as Wataru Sawaragi (voice)(3 eps)
as Muroto (voice)
as Benkei (voice)(2 eps)
as Gruyere Solgest (voice)(12 eps)
as Kryuger (voice)(12 eps)
as Shugo Onodera(1 ep)
as Batou (voice)
as Seiken Swordriver / Wonder Ride Books (voice)
as Grandpa (voice)(12 eps)
as Bernardo (voice)(12 eps)
as Yujiro Hanma (voice)(39 eps)
as Narrator (voice)(1 ep)
as Tsushima (voice)(12 eps)
as Martin Braddock (voice)
as (voice)(6 eps)
as Umamushi (voice)(8 eps)
as Narrator (voice)(11 eps)
as Koji Takao (voice)
as Principal Bear (voice)(12 eps)
as Execution Division Master (voice)(6 eps)
as Great Dog-Demon (voice)(4 eps)
as Seiken / Wonder Ride Books / Narration (voice)(48 eps)
as Narrator
as Razzie (voice)(2 eps)
as Mysterious Voice (voice)(1 ep)
as Jerga (voice)(3 eps)
as Super Shiro (voice)(48 eps)
as Batou (voice)(24 eps)
as Executive Director (voice)(2 eps)
as Kairi Imashigata (voice)(2 eps)
as Todoroki Tenma (voice)
as Ganima Noshiagalda (voice)
as Hajime Shinshiro (voice)(1 ep)
as Narration (voice)(4 eps)
as Hajime Shinshiro (voice)(1 ep)
as Gohin (voice)(9 eps)
as Gohin (Flashback) (voice)(1 ep)
as Lion (voice)(12 eps)
as Thorkell (voice)(25 eps)
as Jouichi Onishima (voice)(12 eps)
as (voice)
as Champ / Oushi Black (Voice)
as Bulldozer Johnny (voice)
as Gus (voice)(24 eps)
as All For One (voice)
as Volvona Forgner (voice)
as (voice)(49 eps)
as Jukai (voice)(24 eps)
as Marshall D. Teach (voice)
as Zenji Saiga(36 eps)
as Zoria (voice)
as Champ / Oushi Black (voice)
as All For One (voice)
as (voice)
as Champ / Oushi Black (voice)
as Yūjirō Hanma (voice)(39 eps)
as Self / Champ · Oushi Black (voice)
as Narrator (voice)
as Tetsuzou Nihei (voice)(62 eps)
as Nyanko Big (voice)(1 ep)
as Andrei Kalinin (voice)
as Dimple (voice)(12 eps)
as Pipimi (voice)(1 ep)
as Hajime Shinshiro / Narration (voice)(5 eps)
as Narration (voice)(30 eps)
as Veteran Camper (voice)(1 ep)
as Nezumi Otoko (voice)
as Champ (Oushi Black)
as Andrei Kalinin (voice)
as Champ / Oushi Black (voice)
as God of War (voice)(1 ep)
as Champ (voice)(1 ep)
as Narrator (voice)
as Champ · Oushi Black (voice)
as Amado Sanzu (voice)(1 ep)
as Zouroku Kashimura (voice)(12 eps)
as Champ - Oushi Black (voice)
as Champ (voice)(1 ep)
as Champ / Oushi Black (voice)(48 eps)
as Rockwell (voice)
as Narrator (voice)
as Raidou Fujimoto (voice)(1 ep)
as Phantom
as Dimple (voice)
as Dimple (voice)(37 eps)
as Narration (voice)
as All For One (voice)(6 eps)
as Gou Karuma (voice)(47 eps)
as Asaf (voice)
as Narrator (voice)
as コアラ(26 eps)
as Yoisho (voice)
as M (voice)
as Blitz T. Abrams(24 eps)
as Narrator (voice)
as Leonis (voice)
as Ootsuka Akio(12 eps)
as Brian Jay (voice)
as Tadakatsu Honda (voice)
as Bryan Hawk (voice)(25 eps)
as Jin
as Jin (segment "A Farewell to Weapons") (voice)
as Ansem (voice)
as Uvogin (voice)
as Koji Takao (voice)
as Wamuu (voice)(26 eps)
as Hadrianus(6 eps)
as Bottbalt
as Rider(25 eps)
as Uvogin (voice)(6 eps)
as Blade (voice)(12 eps)
as Dagon (voice)
as Kumicho
as Seth (voice)
as ONI Commander (segment "Prototype")
as ONI Commander(1 ep)
as Shingen Kishitani (voice)(24 eps)
as Sōichi Nishimura (voice)(26 eps)
as (voice)(2 eps)
as Ooyama Kenzou (voice)
as Siam (voice)(13 eps)
as 格连
as Mihai Mihaeroff(4 eps)
as Jugo Yokomizo (voice)/Sango Yokomizo (voice)
as Gozo Aida (voice)(3 eps)
as Shunsui Kyōraku (voice)
as Mushiban (voice)
as 配音(3 eps)
as Zuizo (voice)(26 eps)
as Batou (voice)
as Solid Snake (voice)
as Solid Snake / Solidus Snake (voice)
as Shunsui Kyoraku (voice)
as Marco Rondanini (voice)
as Shogen Itadori (voice)
as Batou (voice)
as Saito (voice)
as Morisson (voice)(12 eps)
as Regal Bryant (voice)(7 eps)
as Souther (voice)
as Schwanhelt Bulge (voice)
as Shunsui Kyōraku (voice)
as Isshinsai Ogata (voice)(5 eps)
as Toshimi Konakawa (voice)
as Michiru Tsuki (voice)
as Mister (voice)(12 eps)
as Jugo Yokomizo (voice)
as Saizou (voice)(367 eps)
as Mr. Arakawa (voice)(2 eps)
as Snake (voice)
as Black Jack (voice)
as Batou (voice)
as The Avatar of the Wind (voice)(36 eps)
as Schwanhelt Bulge
as Baron Omatsuri (voice)
as Dagon (Voice)(49 eps)
as Black Jack (voice)(77 eps)
as Shunsui Kyoraku (voice)(3 eps)
as King of Ingary (voice)
as (voice)(9 eps)
as Okuru (voice)(26 eps)
as Milan (voice)(1 ep)
as Garuru(51 eps)
as Gwendal von Voltaire(117 eps)
as Batou (voice)
as Santaro (voice)
as Black Jack (voice)(4 eps)
as Inuyasha's father (voice)
as Isha (voice)
as Schwanhert Bulge(52 eps)
as Chōjirō (voice)(1 ep)
as Thadeus (voice)
as ミスター / オールデン・ペニーレイン(12 eps)
as Seiji Nomura (voice)(7 eps)
as Hades (voice)(5 eps)
as Batou (voice)(52 eps)
as Azusa Masaki Jurai (voice)(26 eps)
as G. Junior / Cyborg 005 (voice)(48 eps)
as Andy (voice)
as Naganegiman (voice)
as Takeshi Fujimura (voice)
as Captain Joke (voice)
as Black Jack (voice)
as Black Jack (voice)
as Vincenzo Mancini (voice)
as Bryan Hawk (voice)(26 eps)
as Amon (voice)
as Paradise King (voice)
as Producer (voice) / Toku-san (voice) / Muroi-kun (voice)
as Black Jack (voice)
as Marshall D. Teach/Blackbeard (voice)(7 eps)
as Collins (voice)(6 eps)
as Thanatos (voice)(1 ep)
as Windam (voice)
as Night Phantom (voice)(26 eps)
as Honi(24 eps)
as Gamigamimaō(26 eps)
as Pietoro(26 eps)
as Koichiro Misumaru (voice)
as Duke Togo / Golgo 13
as Shogo Haseoka (voice)(48 eps)
as Whitney Hagas Matsumoto (voice)(1 ep)
as Rai-Dei the Blade (voice)(1 ep)
as Nobunaga (voice)
as Zaxe (voice)(1 ep)
as Jack-2 / Narrator (voice)
as Morita (voice)(3 eps)
as Kitjutsushi (voice)(26 eps)
as Aida Gozo (voice)(1 ep)
as Batanen Fujioka(25 eps)
as Demitri(4 eps)
as Canary Nejiraa(1 ep)
as Kunimitsu Tange (voice)(2 eps)
as Black Jack (voice)
as Captain / Dragon Blau
as Koichiro Misumaru (voice)(26 eps)
as Zilu (voice)
as Shinnosuke Otoi (voice)
as Shinnosuke Otoi (voice)(3 eps)
as Selena's Father (voice)
as Gomez (voice)(4 eps)
as Daitetsu Kunikida (voice)(3 eps)
as Shabitel(61 eps)
as Nezugaira (voice)(1 ep)
as Cornelius / Narrator (voice)(2 eps)
as McGuire (voice)
as Military Official (voice)
as Hiroshi Fukamachi (voice)
as Batou (voice)
as Detective Keiji Asuka(43 eps)
as Whistler 12th (voice)
as Chris (voice)
as Darlian (voice)(49 eps)
as Wizer (voice)(13 eps)
as Bara-Revenger (voice)(1 ep)
as Kozaburou Nanbu (voice)(2 eps)
as Windam (voice)(20 eps)
as Daitetsu Kunikida (voice)(26 eps)
as Kenzou (voice)
as 伊秋院 (voice)(1 ep)
as Araki Masanori(3 eps)
as Silk Master (voice)
as Kenneth Guilford (voice)(2 eps)
as Touta Kijima (voice)(4 eps)
as Montana Jones (voice)(52 eps)
as Black Jack (voice)(12 eps)
as Damaramu (voice)(2 eps)
as Magma (voice)(13 eps)
as Murobo (voice)(2 eps)
as Zaxon (voice)
as ゴクドー(3 eps)
as Donbino (voice)
as Anavel Gato (voice)
as Moominpappa (voice)
as Donald Curtis (voice)
as Zaxon(3 eps)
as George Garedean (voice)
as Banker Kanda (voice) / Narrator
as Bankman Kanda(2 eps)
as McCallum (voice)
as Benares(4 eps)
as Captain Nemo (voice)
as Nemo (voice)
as Nemo (voice)
as Nemo (voice)
as Anavel Gato (voice)(13 eps)
as Jūzō Numa (voice)
as Jūzō Numa (voice)(2 eps)
as Gail (voice)
as John "Sleepy" Estes (a.k.a. Mad Bull)(4 eps)
as Daikaku Inumura (voice)(13 eps)
as Pilot Kotani
as Nemo (voice)(39 eps)
as Moominpappa (voice)(104 eps)
as Gord Baboon(4 eps)
as Sergeant Tsutomu Gomioka (voice)(47 eps)
as Vuan
as Hacker (voice)
as Captain of the Airship (voice)
as Imura/Kuwabara (voice)
as Lt. Keik Carradine(12 eps)
as Daisuke Jigen (voice)(24 eps)
as Narrator (voice) / Swordriver (voice)(48 eps)