Josephine Striezel is recognized as the German voice actress for the character Rico in the anime television series Gunslinger Girl. Her professional credits often list her full name as Josephine-Pauline Strietzel.

Striezel has primarily worked in German-language dubbing for international film and television productions. Her most notable role in anime is voicing Rico in the 2004 series Gunslinger Girl, directed by Morio Asaka. In addition to this anime work, her dubbing career includes providing German voice work for the character Rosa in the series Au Schwarte! in 2003, as well as Hannah in the series Macius in 2001. She has also contributed English-language voice work for German dubs of major American television series, performing various supporting roles in Glee in 2015, portraying a ballerina in an episode of Friends in 2001, and voicing a girl at a swimming pool in an episode of South Park in 1997.

Beyond her voice acting for dubbing, Striezel has experience in audio productions and live theatre. Her theatrical credits include performances in William Shakespeare's A Midsummer Night's Dream as Hermia and in Twelfth Night as Lachmarie, both in 2017. Her other stage work from 2015 to 2017 includes roles in productions of Frau Holle, Motortown, Monique und Jackie, and The Jungle Book. The available professional records indicate that her active career period spans from the late 1990s to at least 2015.