Harald Weisz was born in 1993 in Timisoara and studied acting in German at the Faculty of Music and Theatre of the Western University in Timisoara. He has been a member of the DSTT ensemble since 2014 and play directors such as Niky Wolcz, Laszlo Bocśardi, Yuri Kordonsky, Răzvan Mazilu, Silviu Purcărete, Alexander Hausvater have shaped his acting path.

In 2018 he received the award "Pro Cultura Timisiensis", for special achievements in the cultural field. He participated in various acting workshops led by Simon Schlingplässer, Radu Vulpe, Ida Jarcsek-Gaza, Miklós Bács, Andrea Gavriliu, Ștefan Lupu, as well as speech and voice training sessions led by Tim Schüler. 

Among the performances in which he has participated and performed are: "The Incredible and Sad Tale of Innocent Eréndira and Her Heartless Grandmother" by Gabriel Garcia Márquez (director: Yuri Kordonsky), "The God Kurt" by Alberto Moravia (director: Alexander Hausvater), "Katzelmacher. If it wouldn't be about love" by R.W. Fassbinder (director: Eugen Jebeleanu), "Leonce and Lena" by Georg Büchner (director: Niky Wolcz), "Humans. For Sale" (play and direction: Carmen Lidia Vidu), "The Jungle Book" based on the story book of the same name by Rudyard Kipling (direction: Răzvan Mazilu), "A Midsummer Night's Dream" based on the work of William Shakespeare (direction: István Szábó) or "Lysistrata 3.0" based on the work of Aristophanes (direction: Niky Wolcz).