Susi Wirth was born in Chur, Switzerland in 1970. She grew up in Liechtenstein and Switzerland, and now lives and works in Germany. After completing her training as an actor, she performed on a variety of stages and has worked with many independent theatre groups. In 2000, she and the composer and musician Olivier Gabus founded the Companie Sous-sol, which has received many awards. Susie Wirth has written numerous plays.