Thierry Kazazian is a French actor and voice director, born on February 17, 1965. He trained at several private acting schools before studying under the prominent stage director Daniel Mesguich. Early in his career, he co-founded a recording studio that, initially focused on rock music, also became involved in dubbing work, marking his entry into the field of voice-over.

Kazazian is highly active in dubbing, providing the French voices for a wide array of characters in animation, live-action films, and television series. He is particularly well-known within the anime community for his extensive work. Some of his notable anime roles include Gluttony, Greed, and Vato Falman in Fullmetal Alchemist and Fullmetal Alchemist: Brotherhood, Gilbert Durandal in Gundam Seed Destiny, Icebarg in One Piece, and the title character Otoha in Karas. He also voiced multiple characters in the French dub of Demon Slayer: Kimetsu no Yaiba, including the swordsmith Hotaru Haganezuka and the demon Kyogai. In the Lupin III franchise, he took on the roles of John Claude in Lupin III: Voyage to Danger and Crisis in Lupin III: Dead or Alive. His other credits span a wide range of series, such as Electro in Spectacular Spider-Man, Plagg in Miraculous: Tales of Ladybug & Cat Noir, Ryuji Danma in GTO, and Scotty in the Hello Kitty series Ringo no Mori no Parallel Town, Mystery, and Fantasy.

Beyond anime, Kazazian is the regular French voice for actors Jason Sudeikis and Ken Jeong, among others. His voice is also featured in numerous video games, including the roles of Mordecai in the Borderlands series, Vulture in Marvel's Spider-Man (2018), and Takeo Masaki in Call of Duty: World at War.

In addition to his acting, Thierry Kazazian has had a significant career as a voice director, overseeing the French adaptations of many prominent anime series. His directing credits include Cowboy Bebop, Trigun, Fullmetal Alchemist, Ghost in the Shell: Stand Alone Complex, Wolf's Rain, and the films of Akira and Berserk: The Golden Age Arc.