Marie Bierstedt is a German actress and voice artist born in Berlin in 1974. She came to the film industry at an early age, influenced by her father, Detlef Bierstedt, who is also a voice actor. Bierstedt appeared in television series during the 1980s, such as Praxis Bülowbogen, and played the lead role in the 1988 film Die Mondjäger. After completing her schooling, she focused her career on dubbing and voice acting.

In the realm of anime, Bierstedt is widely recognized for providing the German voice for Rei Ayanami in the Neon Genesis Evangelion franchise, including the film Evangelion: 3.0+1.0: Thrice Upon A Time. Her other notable anime roles include Winry Rockbell in Fullmetal Alchemist and its film sequel, Suiseiseki in Rozen Maiden, and Cécile Croomy in Code Geass. Her film work in the genre also encompasses roles in Voices of a Distant Star as Mikako Nagamine and Origin: Spirits of the Past as Toola. Beyond these, her credits include Tsukiko in Black Jack, Hazuki Fuwa in the Rumiko Takahashi Anthology, and a role in the English-language film Sin: The Movie, demonstrating the breadth of her work in animated and dubbed productions.

Beyond anime, Bierstedt has had an extensive career as the German dubbing voice for numerous international actresses. She is the official German voice for Anne Hathaway, Kirsten Dunst, Anna Faris, and Kate Beckinsale. She is also well-known for dubbing Kristin Kreuk in Smallville, Alyson Hannigan in Buffy the Vampire Slayer, and Chyler Leigh in Grey's Anatomy. Her voice work extends to audiobooks and radio plays, where she has narrated popular series such as House of Night and Vampire Academy, and she took on the titular role in the radio play adaptation of Anne of Green Gables.

With a career beginning in childhood and spanning several decades, Marie Bierstedt has established herself as one of Germany's most prominent and versatile voice actresses, lending her voice to a wide array of characters in anime, film, and literature.