Claire Tefnin is a Belgian actress who has built a prolific career in voice acting, providing the French-language voices for a wide array of characters in anime series and films. She trained at the Conservatoire de Mons and began her performance career in theatre in 1995. While her on-screen work includes appearances in films like the Dardenne brothers' Rosetta, Tefnin is primarily known for her extensive voice work. She has become a prominent figure in the Belgian dubbing industry. Her anime voice acting portfolio is particularly notable for its range. She is the voice of Tanya von Degurechaff in Saga of Tanya the Evil. She voices the villainous Malty Melromarc in The Rising of the Shield Hero. Her versatility is further demonstrated in roles such as the determined Akko Kagari in Little Witch Academia, the mysterious Zero Two in Darling in the Franxx, and the gentle macrophage in Cells at Work!. Tefnin is also the regular voice for several major characters in long-running franchises. She voices Sarada Uchiha in the Boruto: Naruto Next Generations series, a role she originated in the film Boruto: Naruto the Movie. Her work includes voicing Chateau Dankworth in Love of Kill, Shia in The Dungeon of Black Company, Elinalise Dragonroad in Mushoku Tensei: Jobless Reincarnation, and Snow in Combatants Will Be Dispatched!.