Yūki Onodera is a Japanese male voice actor born on April 14, 1981, in Sakata City, Yamagata Prefecture. He is affiliated with the talent agency Kenyu Office. Onodera stands 192 cm tall and has O-type blood. He is a graduate of the voice actor training school talk back. His personal interests include bodybuilding and weight training, and he possesses the unique skill of crushing apples with his bare hands. He is also a speaker of the Shōnai dialect.

Onodera began his professional career in the 2010s, with his debut anime role often cited as King Manifest in the 2020 series Duel Masters King. Since then, he has built a diverse portfolio of roles across anime, video games, and foreign language dubbing. His early anime work included supporting roles in the third season of Golden Kamuy and numerous characters in the Duel Masters franchise. In 2021, he appeared in Dr. Stone: Stone Wars and The Roman Fighter. The year 2022 saw him take on roles in high-profile series such as Engage Kiss, where he voiced Masataka Hachisuka, as well as Chainsaw Man, My Hero Academia, and Kingdom.

His career continued to expand in 2023 and 2024 with appearances in the final season of Attack on Titan, Pokémon Horizons: The Series as Onyx, and the web anime PLUTO. In 2024, he voiced the character Derubiru in the web anime series Ikari no Okorizaru Kansatsu Nikki. His work in anime also extends to voice acting in video games, with credits in major titles such as Blue Protocol, Octopath Traveler II, and Monster Strike.

Beyond original anime production, Onodera is very active in the field of dubbing foreign films and dramas. He has provided the Japanese voice for characters in numerous Hollywood blockbusters, including Indiana Jones and the Dial of Destiny, Deadpool & Wolverine, Kingdom of the Planet of the Apes, Joker: Folie à Deux, and The Marvels. He also dubbed roles in dramas such as Squid Game and Jack Ryan. His work in dubbing Western animation includes taking over as the second Japanese voice for the long-running characters Groundskeeper Willie and Kirk Van Houten in The Simpsons. Onodera has also participated in audiobook narrations and voice-over work for documentaries.