Justine Berger is a French voice actor known for her work in the dubbing of anime series and films for the French-language market. Her career is primarily documented through her roles in various animated productions, where she lends her voice to a diverse range of characters.

Berger's body of work features several prominent titles. She voices Yuzuki Fuwa in the television series Assassination Classroom and its second season, as well as in the related film Assassination Classroom the Movie: 365 Days' Time and the original net animation Koro Sensei Quest!. She also portrays Miki Kawai in the critically acclaimed film A Silent Voice and Tae in the movie Tansuwarashi. In the original net animation Spriggan, she takes on the role of Hatsuho Sasahara.

Beyond the roles cited in the query, her other notable anime credits include Shinju Inui in My Dress-Up Darling, Akira Asai in Call of the Night, Mikuri Cairo in 86, Feel Nilvalen in No Game, No Life and its film No Game, No Life Zero, and Tsumiki Fushiguro in Jujutsu Kaisen. She also voices Nero in Black Clover and Alisha Diphda in Tales of Zestiria the X. In addition to anime, her voice work extends to the Star Wars franchise, where she is the voice of Lyana Hazard in the animated series Star Wars: The Bad Batch.

Recurring collaborations are evident in her career, particularly with the French dubbing studio Time-Line Factory and under the direction of Mélanie Anne. This team was responsible for the French adaptations of several series in which Berger appears, including Assassination Classroom and A Silent Voice, indicating a consistent working relationship within the French dubbing industry. Information regarding specific training, formal awards, or other notable achievements is not documented in the available records.