Michalina Olszanska is a Polish actress, writer, violinist, and vocalist. She began her violin studies at the age of seven. She studied at the Aleksander Zelwerowicz Theatre Academy in Warsaw. She is recognized for her performances in Já, Olga Hepnarová (2016) where she played the title role, and Matilda (2017) where she portrayed Mathilde Kschessinska. She also appeared in the movie Sobibor (2018).