*Codec ringing*
Snake: Colonel, I need you to describe my voice actor here for me.
Colonel: You want to know about David Hayter, huh, Snake?
Snake: Huh? No, not him.
Colonel: Well, then Kiefer Sutherland?
Snake: No, Sutherland voices Big Boss since Ground Zeroes... Not my English voice actor, Colonel, but my Japanese seiyuu.
Colonel: Oh, right. My mistake. Akio Ōtsuka, born November 24, 1959, is one of the most respected veterans in the voice acting business. He's the son of another veteran voice actor, the late Chikao Ohtsuka, making him an old son. In fact, following his father's death, Ōtsuka has taken over his father's past roles. Until 2009, he was also married to another seiyuu, Yoko Soumi, known for her Vamp, serious lady or Femme Fatale roles, like Karen Kasumi from X1999 the TV series and Atsuko from YuYu Hakusho.
Snake: So he's part of voice actor royalty, eh? I wouldn't be surprised if his kids became voice actors as well.
Colonel: Known for a deep, gruff voice that fits him into veteran-like roles, Ōtsuka often lands characters who are widely considered Badass, making him quite a fan favorite amongst older seiyuu. He'll gladly do humor roles as well.
Snake: Going from serious to humorous, eh? Wouldn't it be best to stick to one role?
Snake: Colonel, I need you to describe my voice actor here for me.
Colonel: You want to know about David Hayter, huh, Snake?
Snake: Huh? No, not him.
Colonel: Well, then Kiefer Sutherland?
Snake: No, Sutherland voices Big Boss since Ground Zeroes... Not my English voice actor, Colonel, but my Japanese seiyuu.
Colonel: Oh, right. My mistake. Akio Ōtsuka, born November 24, 1959, is one of the most respected veterans in the voice acting business. He's the son of another veteran voice actor, the late Chikao Ohtsuka, making him an old son. In fact, following his father's death, Ōtsuka has taken over his father's past roles. Until 2009, he was also married to another seiyuu, Yoko Soumi, known for her Vamp, serious lady or Femme Fatale roles, like Karen Kasumi from X1999 the TV series and Atsuko from YuYu Hakusho.
Snake: So he's part of voice actor royalty, eh? I wouldn't be surprised if his kids became voice actors as well.
Colonel: Known for a deep, gruff voice that fits him into veteran-like roles, Ōtsuka often lands characters who are widely considered Badass, making him quite a fan favorite amongst older seiyuu. He'll gladly do humor roles as well.
Snake: Going from serious to humorous, eh? Wouldn't it be best to stick to one role?
Note: May also be spelled as "Ootsuka" or "Ohtsuka" instead in romaji. He also appears in live-action roles in TV, movies and video games from time to time.
Akio! Awaken, my roles!
- The Agent class and his subclasses in the Japanese version of Dungeon Fighter Online
- Agito Kanoh in Kengan Ashura
- Alandus, Raybury and Aletheia (taken over from his father) in Granblue Fantasy
- Alexei Shovstakov/Red Guardian (David Harbour) in the Japanese dub of Black Widow (2021)
- Shigaraki/All For One in My Hero Academia
- Ansem, Seeker of Darkness and Terra-Xehanort in Kingdom Hearts
- Anavel Gato in Mobile Suit Gundam 0083: Stardust Memory, Super Robot Wars F, Super Robot Wars Alpha 1 and 2, Super Robot Wars Impact and Super Robot Wars Advance Portable
- Bara Revenger in Chouriki Sentai Ohranger
- Batou in the Ghost in the Shell franchise
- Benkei in Genji
- Bergard Zeman/Gunther Barkhorn in The Legend of Heroes: Kuro no Kiseki
- Bernardo O'Reilly in the flight screening Japanese dub of The Magnificent Seven, taking over from his father, more or less.
- Dr. Black Jack in Black Jack
- The eponymous vampire hunter Blade in Marvel Anime: Blade
- Blitz T. "Lucky" Abrams in Blood Blockade Battlefront
- Bluebeard in Marchen, as well as the narration in some of Sound Horizon's concerts.
- Bobby in the Japanese dub of Animaniacs
- Boss in 12Riven
- Boy in Yarudora series vol.3: Sampaguita
- Ring Star Champ/Oushi Black in Uchu Sentai Kyuranger
- Chester Ray Galford in How Not to Summon a Demon Lord
- Christopher Smith/Peacemaker (John Cena) in the Japanese dub of The Suicide Squad and Peacemaker (2022)
- Corlys Velaryon (Steve Toussaint) in the Japanese dub of House of the Dragon
- Daigo Kazama in Project Justice (replacing Kōichi Yamadera) and Street Fighter V
- Daisuke Jigen in the Lupin III (2021-, replacing Kiyoshi Kobayashi)
- Vice-Foreign Minister Darlian and the Narrator in Mobile Suit Gundam Wing
- Denzo Yamada (2nd voice) in Nintama Rantarou (replacing his father Chikao Ohtsuka, who sadly passed away during production)
- Die-Hardman in the Death Stranding Japanese dub
- Dick Dastardly/Black Maou in the Japanese dub of Wacky Races (2017) (once again, taking the mantle from his father who voiced Dastardly in the original series Japanese dub as well as Dastardly and Muttley in Their Flying Machines)
- Dimple in Mob Psycho 100
- Elmer Snell in Mobile Suit Gundam MS IGLOO 2: The Gravity Front
- Ernest Thompson Seton in Time Bokan 24
- Fleur-de-lis (Lysandre) in Pokémon Masters
- Frank Castle/The Punisher in the Japanese dubs of The Punisher (1989) and Punisher: War Zone
- Judge Gabranth in Final Fantasy XII and Dissidia Final Fantasy
- Gaius van Baelsar in Final Fantasy XIV
- Garland (Garr) in Breath of Fire III: Drama Album
- Garon in Fire Emblem Fates
- First Lieutenant Garuru in Sgt. Frog
- Geist in Harvestella
- Gio in Atelier Rorona and Meruru
- Go Karuma (Manfred von Karma) in the anime adaptation of Ace Attorney
- Gokudo in Zettai Muteki Raijin-Oh
- Gouhin in Beastars
- Gozo Aida in Agent Aika
- Graves, the Outlaw in the Japanese dub of League of Legends
- Gregorio Silva in Code Vein
- King Gruyere Soljest in The Genius Prince's Guide to Raising a Nation Out of Debt (Hey, How About Treason?)
- Gwendal von Voltaire in Kyo Kara Maoh!
- Hades in Saint Seiya
- Han Solo (Harrison Ford) in the Japanese dub of Star Wars
- Hawkins in the anime adaptation of The Secret Garden
- Hazel Rainart in the Japanese dub of RWBY
- Director Higashio in Majin Bone
- HOMU Emperor in Honkai Impact 3rd
- Hyo Amano in The Last Blade
- Inuyasha and Sesshomaru's father in Inuyasha the Movie: Sword of an Honorable Ruler and Yasha Hime Princess Half Demon
- Iron Will in the Japanese dub of My Little Pony: Friendship Is Magic
- Jeralt in Fire Emblem: Three Houses
- Jerga in The Misfit of Demon King Academy
- Jōichi Onishima in Are You Lost?
- Jukai in Dororo (2019)
- Jules Winfield (Samuel L. Jackson) in the Japanese dub of Pulp Fiction
- Kagerou in Trek to Yomi
- Kai in Flame of Recca
- Kaite Madigan in Mobile Suit Gundam SEED Astray
- Koichi Adachi in Yakuza: Like a Dragon
- Kyoraku Shunsui in the Bleach franchise
- Laike in Lunar: Silver Star Story
- Leo Johnson (Eric DaRe) in the Japanese dub of Twin Peaks
- Mario Auditore in Assassin's Creed II
- Marshall D. Teach (better known as "Blackbeard") in One Piece
- His father Chikao Ohtsuka played Gol D. Roger.
- Baron Omatsuri in Baron Omatsuri and the Secret Island
- Master in Akudama Drive
- Mihai in the Dogs: Stray Dogs Howling in the Dark OVA
- Minamoto no Yoritomo and Unknown Soldier P1 in Namco × Capcom
- Moominpappa in Tanoshii Moomin Ikka
- Morrison in Devil May Cry: The Animated Series and Devil May Cry 5
- Mushiban in Yes! Pretty Cure 5 Go Go! The Movie: Happy Birthday in the Land of Sweets
- Norito as a grown up in Black★★Rock Shooter: Dawn Fall
- Ojii-chan in My Senpai Is Annoying
- Orcus in Phantasy Star Nova
- Ouchi Fukuchi in Bungo Stray Dogs
- Radi Yaeger in Valkyria Chronicles
- Rai-Dei the Blade in Trigun
- Red in Mega Man X7
- Regal Bryant in Tales of Symphonia
- Rider (Alexander the Great) in Fate/Zero and Fate/Grand Order
- Rin's grandfather and The Narrator in Laid-Back Camp
- Ryouma Hoshi in Danganronpa V3: Killing Harmony
- Samurai Goroh in Super Smash Bros.
- Sango Yokomizo and Juzo Yokomizo in Case Closed
- Seido Hishigata in Summertime Rendering
- Dr. Seiichi Saeki in 428: Shibuya Scramble
- Seiken SworDriver, the Wonder Ride Books, and other various equipment in Kamen Rider Saber
- Seiya Ogata in Sakura Wars 2: Thou Shalt Not Die and the Sakura Wars: The Radiant Gorgeous Blooming Cherry Blossoms OVA
- Seth in Street Fighter IV, Street Fighter V and Project × Zone
- Lord Shimura in the Japanese dub of Ghost of Tsushima
- Shingen Kishitani in Durarara!!
- Siam in Canaan
- Lt. Simms in the Japanese dub of Night Trap
- The Skull Knight in Berserk: The Golden Age Arc, Berserk (2016), and Berserk and the Band of the Hawk
- Solid Snake, Solidus Snake and Naked Snake/Venom Snake/Big Boss in Metal Gear, the first reprised in Super Smash Bros. Brawl and Super Smash Bros. Ultimate
- Souan Awaki in Cafe Enchante
- Souichi "Ironman" Nishimura in Baka and Test: Summon the Beasts
- Souther in Fist of the North Star (Movie version; succeeds Banjo Ginga, who is ironically Liquid Snake)
- His father Chikao Ohtsuka played Ryuuken and previously played Jagi in the 80s movie.
- Spider-Man Noir in the Japanese dub of Spider-Man: Into the Spider-Verse
- The Sundown Kid in Live A Live (2022 remake)
- Uvogin and Mizaistom in Hunter × Hunter (2011)
- Tadakatsu Honda in the Samurai Warriors franchise
- Tadashi Urabe in the Nintendo Switch remake of Famicom Detective Club: The Girl Who Stands Behind
- Temma Todoroki in Psycho-Pass 3
- Tetsuzo Nihei in Golden Kamuy
- Thorkell the Tall in Vinland Saga
- Ultraman Powered in Ultraman: The Ultimate Hero
- Vargas in the Power Stone anime
- Wamuu in JoJo's Bizarre Adventure: Battle Tendency
- Windam in Magic Knight Rayearth
- Captain William Rush from Time Crisis 4
- Xenoblade Chronicles
- Bana in Xenoblade Chronicles 2
- Z and the Nopon Archsage in Xenoblade Chronicles 3
- Yoichi Hoshina in Star★Twinkle Pretty Cure
- Yujiro Hanma in Baki (2018)
- Dub voice for:
His English counterparts are Crispin Freeman and Jamieson Price for California, Kent Williams for Texas, and Scott McNeil for Canada.
