Jana Dunja Gries is a German voice actress known for her extensive work in dubbing anime series and video games for the German-speaking market. Born on November 15, 1998, in Waldbröl, Germany, her interest in languages and linguistics led her to pursue a career in voice acting, a field in which she has been active since at least 2014. To deepen her understanding of the mechanics of speech, she studied linguistics and received vocal training from Claudia Maria Brinker and Lilian Wilfart.

Gries has lent her voice to a wide array of characters across numerous popular anime franchises. Her roles are diverse, ranging from young, energetic characters to more serious and fantastical roles. Some of her most recognized performances include Shea Haulia in Arifureta: From Commonplace to World's Strongest, Komachi Hikigaya in My Teen Romantic Comedy SNAFU, and the role of Eri in the long-running series My Hero Academia. She also voiced the protagonist Fina in Kuma Kuma Kuma Bear, Sophia Ascart in My Next Life as a Villainess: All Routes Lead to Doom!, and Syrup in BOFURI: I Don't Want to Get Hurt, so I'll Max Out My Defense.. Her film work includes the role of Hamamoto in the feature Penguin Highway.

In addition to these, her filmography includes major roles in a variety of other series. She is the German voice for Miu Ashihara in Domestic Girlfriend, Ranga in The Dungeon of Black Company, Remi Ayasaki in Horimiya, Chika in The Magnificent KOTOBUKI, Hazuki Yuiga in We Never Learn: BOKUBEN, Kaede Foxia in How a Realist Hero Rebuilt the Kingdom, and Chacha in SUPER HXEROES: "H"EROES SAVE THE WORLD. Her body of work also extends to other notable titles such as Overlord, where she voiced Entoma, and Spice and Wolf, as Nora Arendt, as well as roles in Mobile Suit Gundam: The Witch from Mercury, Bleach, and Food Wars!.

Beyond anime, Gries's voice can be heard in various video games and audiobooks. Her video game credits include characters in major titles such as Mila Alexander in Apex Legends, roles in Gwent: The Witcher Card Game, Star Wars: Squadrons, and Saint Seiya. She is also part of a collaborative project with fellow voice actors Eleni Möller and Nicole Hise, running a German YouTube channel named Seiyon, where they create vlogs and variety content related to their lives and interests in anime and gaming.