Marii Weichsler was born as the youngest of 4 sisters in Spittal and lives in Upper Carinthia. The 18-year-old is attending a higher school with an economic focus.She discovered her love for acting at a young age, because at the age of 9 she made her first small film with an old cassette camera. At the age of 15 she took part in the casting for "The Strange House" by Daniel Prochaska and got the role of "Ida".At the beginning of 2021, Marii Weichsler took over the role of the little sister of Olympic Champion Franz Klammer by Andreas Schmied.