Gérard Rouzier is a French actor primarily known for his extensive work in voice acting, particularly in the dubbing of anime and animated series for the French market. Born in Paris, France, his career spans several decades and includes significant contributions to both theater and on-screen performances.

Rouzier's professional background is deeply rooted in theater. In addition to his voice work, he has had a prolific stage career, acting in, directing, and creating numerous theatrical productions. His work often explores spiritual and literary themes, with productions about Vincent van Gogh, Martin Luther, and the Gospel of Saint John. He has also directed the Compagnie du Sablier and led theater workshops, sharing his expertise in dramatic arts. On screen, he has appeared in French television series such as Plus belle la vie, Caïn, and Marseille.

In the realm of animation dubbing, Rouzier has lent his voice to a wide array of characters, becoming a familiar presence to French fans of anime. He is notably recognized as the French voice of Van Hohenheim in both the 2003 Fullmetal Alchemist series and Fullmetal Alchemist: Brotherhood. Another prominent role is that of Shirō Fujimoto in the Blue Exorcist franchise, a character he has voiced consistently from the 2011 series through to the 2024 releases. His other significant anime dubbing credits include Ashram in Record of Lodoss War, Tenkai in The Dagger of Kamui (first dub), Grand Pa Potam in Petit Potam, and Lau in the film Brave Story. He also provided the voice for Gendo Ikari in the first French dub of Evangelion: 1.0 You Are (Not) Alone.

Rouzier's voice acting repertoire is not limited to anime. He has dubbed characters in American live-action productions, such as the role of Doc in the television series Z Nation, as well as in several entries of the Sharknado film series. His work also extends to serving as a voice director on projects like the series Girlfriends' Guide to Divorce.