Thirsa grew up in The Netherlands. There, she worked in theater with well known directors and producers such as ITA and Ivo van Hove, Robin DeLevita and Theu Boermans. She played lead roles in blockbuster musicals ANNE and Soldier of Orange. In the US, she can be seen in the tv series WALKER, EVIL and FBI: INTERNATIONAL.

She voices several characters in the animated Netflix series LOL Surprise and Rainbow High. She can also be seen on Netflix in the role of Caro in the film 'Broken'. This year, she will appear in a new international TV series on Videoland. She recently finished filming a new Netflix film in Europe which will be released in the spring of 2025.