French model and actress Gaia Weiss was born to a French-Polish family on August 30, 1991 in Paris, France. At age three, she took ballet and became an accomplished ballet dancer. Weiss attended the Cours Florent and the London Academy of Music and Dramatic Art (LAMDA) and started acting in 1999. She is known for her roles as "Mary Fleming" in Mary Queen of Scots (2013), "Hebe" in the Renny Harlin-directed action film The Legend of Hercules (2014), "Porunn" in the History channel's historical drama series Vikings (2013), and as "Vivienne" in the French film comedy Les profs 2 (2015). She also made appearances in the Starz network drama series Outlander (2014) and the hi-speed action film Overdrive (2017).