Valentin Stilu is a German voice actor and singer based in Berlin and Hamburg, recognized for his work in dubbing international films and animated series for the German market. He is an alumnus of the Kontaktstudiengang Popularmusik at the Hochschule für Musik und Theater in Hamburg. Prior to focusing on voice acting, Stilu was active as a musician and composer, working with Warner Music and Warner/Chappell. His entry into professional voice work began in the early 1990s, and he has been consistently active in dubbing since 2007. His voice is described as youthful, fresh, and dynamic with a high recognition factor, and he has lent it to commercials for brands such as Nike and Mezzo Mix.

In the realm of anime and animation, Stilu has contributed to several prominent German-synchronized versions. He voices the character Sanou in the anime series Beastars, a role he has performed across multiple episodes of the show. His work also includes the role of Kenji Mitsuda in the film Mobile Suit Gundam Hathaway. Additionally, he provided the German vocals for the character Tatsu in the Detective Conan special Meitantei Conan: Edogawa Conan Shissō Jiken -Chijō Saiaku no Futsukakan-.

Beyond these credits, Stilu's voice can be heard in a variety of other animated and live-action dubs. He voiced the character Axtmann in the film Hubie Halloween and Father Maus in Rote Robin. His dubbing portfolio also includes providing the German voice for actors such as Dave Franco and for characters in series like Walk the Prank. In addition to on-screen work, Stilu has performed in audio dramas, notably as the villain Godspeed in the cybercrime Hörspiel series Glashaus, and he sang the German title song for the children's series The Cat in the Hat.