Britta Steffenhagen is a German voice actor, radio journalist, and stage performer, born in the Kreuzberg district of Berlin in 1976. Her career is marked by extensive work in dubbing for film and television, as well as hosting and radio, for which she has received prestigious awards. Her role as Sayogoromo in the 2015 animated film Miss Hokusai is one of her credits within the anime genre.

Steffenhagen's path to voice acting includes a strong foundation in performance and academia. She studied political science at the Free University of Berlin and, as a DAAD scholar, at Trinity College in Dublin, graduating in 2001. Alongside her academic pursuits, she developed her performance skills, living in Canada, London, and Dublin, which led to fluency in English for her professional work. For over a decade, she was a stage performer with the acclaimed cult show Die Rixdorfer Perlen at the Heimathafen Neukölln in Berlin.

In the realm of voice acting, Steffenhagen has become a prominent and recognizable voice in German dubs, providing the German voice for a wide array of characters in both live-action and animated productions. She has established recurring collaborations, serving as the German voice for actresses such as Natasha Lyonne, Kerry Condon, and Rachel Weisz. A notable example is her work as the voice of F.R.I.D.A.Y., the A.I. system, in several Marvel Cinematic Universe films, including Avengers: Age of Ultron, Avengers: Infinity War, and Avengers: Endgame. She is also the German voice of Maddie Wachowski in the Sonic the Hedgehog film series. Her extensive dubbing portfolio includes roles in major productions like Wonka, Elemental, and the animated film Zootopia. Her contribution to anime and animation includes her role in Miss Hokusai, where she dubbed the voice of the character Sayogoromo for the German-language release. In television, her dubbing credits are numerous and include series such as Torchwood, Stargate Universe, Archer, Poker Face, and The Orville.

Beyond dubbing, Steffenhagen is an accomplished radio journalist and host. She has been a host on the German station radioeins, where her live radio show received the prestigious Grimme Award. Her work in radio has also earned her other accolades, including the econsense Journalistenpreis in 2010 and the Umweltmedienpreis in 2023 for collaborative projects. She has hosted major events such as the European Film Awards and the Teddy Award at the Berlin International Film Festival. In addition, she is an active narrator for numerous audiobooks and has performed in various radio plays and features.