Kelyan Blanc is a French actor born in 1988 who began his career in voice acting at the age of ten. He is primarily known for his extensive work in dubbing, where he has built a substantial career spanning live-action films, television series, animation, and video games.

His most prominent and long-standing role is as the official French voice of actor Daniel Radcliffe. He has dubbed Radcliffe in all eight Harry Potter films, from Harry Potter and the Philosopher's Stone in 2001 to Harry Potter and the Deathly Hallows Part 2 in 2011, and has continued to voice the actor in many of his subsequent projects. This iconic role made his voice familiar to a generation of French audiences. Beyond Harry Potter, his dubbing work includes the voice of young Boba Fett in Star Wars: Episode II – Attack of the Clones and roles in major television series such as Hannah Montana, where he voiced Oliver Oken, and Kim Possible, as the character Wallace.

In the realm of anime and animation, Blanc has an extensive and varied portfolio. He has lent his voice to several notable Japanese animated series, including Kei Tsukishima in Haikyū!!, Saji Crossroad in Mobile Suit Gundam 00, Gimmy in Gurren Lagann, and Stark in Frieren. A key recent role is that of Gyokuei in the anime series Ōoku: The Inner Chambers. His work in animation also includes roles in Western productions like Star Wars: The Clone Wars and the French animated series Les Minijusticiers.

Blanc's career is marked by several recurring professional relationships, most notably with Daniel Radcliffe, whose filmography he has consistently dubbed. He has also frequently voiced actor Mitchel Musso, including in Hannah Montana and the Disney Channel film Hatching Pete. His work in video games is also significant, having voiced Harry Potter in multiple video game adaptations, the young Kratos in God of War: Ghost of Sparta, and Honoroit in Final Fantasy XIV: Heavensward.

Notable achievements in his career include being the official French voice for one of the most iconic film characters of the 21st century, Harry Potter, for an entire decade. He has demonstrated versatility across genres, from big-budget live-action franchises to popular animated series and acclaimed anime. In 2024, he gained wider public recognition by participating in the French reality television show Secret Story, where his secret was his identity as the voice of Harry Potter.