Kazuki Yao

Television animation

• Mobile Suit Gundam ZZ (1986) (Judau Ashta)

Unknown date

• Agatha Christie's Great Detectives Poirot and Marple (Desmond)
• Astro Boy (Skunk)
• Beast Wars (Starscream)
• Beast Wars Neo (Saberback)
• Berserk: The Golden Age Arc (Gaston)
• Betterman (Bodaiju)
• Black Jack (Takashi)
• Captain Tsubasa (Heffner)
• Detective Conan (Kuramoto Youji, Toby Keynes, Kando, Yaguchi Akihiko, Reiji Himuro,Kahara Fuuga)
• Corrector Yui (Kasuga Shinichi)
• Dancouga - Super Beast Machine God (Shinobu Fujiwara)
• Death Note (Shidoh)
• Demonbane (Tiberius)
• Digimon Adventure 02 (Igamon)
• Digimon Xros Wars (Zamielmon)
• Doraemon (Red haired Gang Member)
• F-Zero Falcon Legend (Jack Levin)
• Fullmetal Alchemist (Lieutenant Yoki)
• Genesis of Aquarion (Moroha)
• Grenadier (Suirou)
• Great Teacher Onizuka (Toshiyuki Saejima)
• Gunslinger Girl (Marco)
• Hanada Shōnen Shi (dad)
• Harelya II Boy (Reiji Maroka)
• Hunter × Hunter (1999) (Izunabi (episode 45))
• Hunter × Hunter (2011) (Majitani)
• Initial D (Kouichirou Iketani)
• Inuyasha: The Final Act (Kaō, English: The Flower Prince)
• Jankenman (Kamen Osodashi)
• Kaiji (Kitami)
• Kenichi: The Mightiest Disciple (Takeda Ikki)
• Kenran Butohsai (Episode 18, Crawley)
• Keroro Gunsou (Zoruru)
• Konjiki no Gash Bell!! (Steng)
• Marchen Awakens Romance (Puss n' Boots)
• Mobile Suit Gundam 00 (Arbor Lint)
• Mobile Suit Zeta Gundam (Gates Capa, Addis Aziba)
• Monster Rancher (Tiger)
• NG Knight Lamune & 40 (Da Cider)
• Nerima Daikon Brothers (Prime Minister Oizuma)
• Naruto: Shippuden (Suika)
• Ninja Scroll: The Series (Kawahori)
• One Piece (Jango, Mr. 2 Bon Clay, Franky, Fake Sogeking, Tablet)
• Pokémon (Tougan)
• Pretty Sammy TV (Ginji Kawai)
• Real Drive (Ayumu Fujiwara)
• Saint Seiya Omega (Taurus Harbinger)
• Shijou Saikyou no Deshi Kenichi (Ikki Takeda)
• Street Fighter II V (Fei Long)
• Sweet Valerian (Stress Team)
• Tenjho Tenge (Bunshichi Tawara)
• VS Knight Lamune & 40 Fire (Da Cider)
• Wedding Peach (Pluie)
• Wolverine (Hideki Kurohagi)
• Yaiba (General Mongetzu, Gekko)
• Zoids: Chaotic Century (Stinger)

Original video animation (OVA)

• The Heroic Legend of Arslan (1993) (Guibu)

Unknown date

• Amon: The Apocalypse of Devilman (Zellos)
• Bastard!! (Dark Schneider)
• Crystal Triangle^[1]
• Gunbuster (Aim for the Top! - Top wo Nerae!) (Toren Smith)
• Legend of the Galactic Heroes (Warren Hughs)
• Madara (Seishinja)
• Megazone 23 Parts I and II (Shogo Yahagi)
• Murder Princess (Dominikov)
• Ushio and Tora (Juro)
• Yagami-kun's Family Affairs (Yūji Yagami)
• Soreyuke Marin-chan (Stripper in episode 2)

Theatrical animation

• Violinist of Hameln (1996) (Hamel)

Video games

• Angelique (xxxx) (Pastha)
• Demonbane (xxxx) (Tiberius)
• Dynasty Warriors: Gundam (xxxx) (Judau Ashta)
• Dynasty Warriors: Gundam 2 (xxxx) (Judau Ashta)
• Initial D Arcade Stage series (xxxx) (Koichiro Iketani)
• Last Bronx (1996) (Yusaku Kudo)
• Kaiser Knuckle (known outside Japan as Global Champion) (xxxx) (Kazuya)
• Maji de Watashi ni Koishinasai! S (xxxx) (Chosokabe)
• One Piece (xxxx) (Jango, Mr. 2 Bon Clay, Franky)
• Puyo Puyo CD (xxxx) (Dark Prince)
• Puyo Puyo Tetris (xxxx) (X)
• Super Robot Wars series (xxxx) (Judau Ashta, Gates Capa, Fujiwara Shinobu, Fog Sweeper, Tiberius, Da Cider)
• Tales of the Abyss (xxxx) (Dist)
• Ys 4: The Dawn of Ys (xxxx) (Mīyu)

Drama CDs

• Fujimi Orchestra Series 2: D-Senjou no Aria (xxxx) (Tsutomu Yasaka)
• Fujimi Orchestra Series 6: Manhattan Sonata (xxxx) (Takane Ikushima)
• Fujimi Orchestra Series 7: Recital Rhapsody (xxxx) (Takane Ikushima)
• Fujimi Orchestra Series side story: Yasei no Amadeus (xxxx) (Takane Ikushima)
• Yumemiru Nemuri Otoko (xxxx) (Kenji Anan)

Tokusatsu

• Ninja Sentai Kakuranger (1994) (Ninjaman/Samuraiman) (Eps. 36-53)
• Gekisou Sentai Carranger (1996) (OO Batton) (Ep. 40)
• B-Robo Kabutack (1997) (Denden Roller)
• Voicelugger (1999) (Buzzerma) (Ep. 1 )
• Moero！！ Robocon (1999) (Roboboss (Voice), Police (Actor)
• Mirai Sentai Timeranger vs. Go Go V (2001) (Murder Boxer Boribaru/Fused Psyma Boripierre (Voice of Taiki Matsuno)
• Mahou Sentai Magiranger (2005-2006) (Hades God Drake) (Eps. 35-42)
• GoGo Sentai Boukenger (2006) (Ouga) (Ep. 40-42)
• Kaizoku Sentai Gokaiger (2012) (Ninjaman) (Ep. 45 & 46)
• Unofficial Sentai Akibaranger (2012) (Doctor Z/Takehiro Tsuzuki (Actor)
• Zyuden Sentai Kyoryuger (2013) (Debo Nagareboshi) (Ep. 17, 18, 21 & 36)
• Shuriken Sentai Ninninger (2015) (Advanced Yokai Oboroguruma) (Ep. 36)
• Totema (2017) (Maze 3: Gorider Forever)

Other

• Yan and the Japanese People: Let's Learn Japanese (xxxx) (Taro Kato)