Julia Vieregge is a German singer, voice actor, and web video producer, born on April 19, 1985, in Troisdorf. She grew up in Cologne and began her career in music, working as a frontwoman and songwriter for several bands before spending years performing in a cabaret and chanson program on cruise ships. As a singer, she has performed internationally, including at festivals in South Africa and China, and for troops in Afghanistan. She has received the German Rock and Pop Prize for Best Gospel Singer in 2012 and Best Rock Singer in 2013.

As a voice actor, Vieregge is based in Berlin and works for various synchronization studios. She is widely recognized as the German dubbing voice for Ruby Rose's character Kate Kane in the series Batwoman, as well as for voicing the character in related shows like Arrow and The Flash. Her work in animation includes the role of Thelma in the 2024 Netflix film Thelma, das Einhorn, for which she provided both speaking and singing voices, a performance that contributed to the film winning the award for Best Animated Film at the 2025 Deutscher Synchronpreis.

In the realm of anime, Vieregge has taken on several prominent roles in German dubs. She voices Kiyo Koto in the 2018 series Doreiku The Animation. She also provides the German voice for Akari Watanabe in the romantic comedy series More than a Married Couple, but Not Lovers. Another notable anime role is Claris Cleveland in The Iceblade Sorcerer Shall Rule the World. Her work often involves collaborations with Berlin-based studios such as TNT Media. Beyond acting, Vieregge shares her expertise through a YouTube channel focused on voice acting, singing, and musicals, and she co-hosted the podcast Und bitte. about musical theatre from 2018 to 2025.