Wendl was born into an upper-class family in Bavaria and began her training as an actress in Berlin at Lucie Höflich's seminar.
[1] Afterwards, she played classical roles on stage in Berlin, Bonn, Augsburg, Innsbruck, Munich, Meiningen, Bamberg and Ingolstadt.
Her television work includes series like Die fünfte Kolonne [de], Meister Eder und sein Pumuckl and Der Kommissar, where she made guest appearances in a few episodes.
[citation needed] In 2005, Wendl suffered a stroke and had three bouts of pneumonia, which caused her to cease work on Lindenstraße.
Her fellow actors from Lindenstrasse, including Marie-Luise Marjan, Bill Mockridge, and Hans W. Geißendörfer, attended her funeral.