Sergio Liébana is a Spanish voice actor known for his work in anime dubbing, live-action series, films, and video games. As an active dubbing actor and voiceover artist, he has built a career spanning numerous high-profile projects across different media.

In the world of anime, Liébana is best recognized for his role as Rudeus Greyrat in the Spanish dub of Mushoku Tensei: Jobless Reincarnation, including its second season. He also voices Wirth Madl in the series Mashle: Magic and Muscles. Additional anime credits include Forseti in Record of Ragnarok and its sequel Record of Ragnarok II, as well as Horacio in the long-running series Pokemon Sun & Moon.

Beyond anime, Liébana has an extensive portfolio in live-action dubbing. He provides the Spanish voice for Zoro Roronoa in the live-action One Piece series on Netflix, Arisu in Alice in Borderland, the Fifteenth Doctor in Doctor Who, and Sejanus Plinth in The Hunger Games: The Ballad of Songbirds and Snakes. He also voices Dani Rojas in Ted Lasso, took over the role of Mr. Poopybutthole starting from the fourth season of Rick & Morty, and lends his voice to characters such as Ren in Pokemon Go and Kamran in Ms. Marvel.

In the video game industry, Liébana has taken on several notable roles, including Sebastian Sallow in Hogwarts Legacy, Sindri in God of War Ragnarok, Jordan in The Last of Us Part II, and Pathfinder in Apex Legends. His voice work also extends to advertising campaigns for major brands such as Citroen, MediaMarkt, Cope, Lego, and Nintendo.