Marnie Sophie Berger was born in Villingen in the Schwarzwald, where she also grew up. During her school education she was active in the Theater AG and therefore already had her first theatre performances.
During a free social year at a kindergarten, she belonged to the ensemble of the municipal Brennpunkt Theater. This strengthened her desire to become an actress.
Already at the age of 17 she decided to move to the state capital of Baden-Württemberg and attended the Theaterakademie Stuttgart, where she successfully graduated as a state-approved actress in December 2012. From the third semester at the Theaterakademie Stuttgart, she simultaneously took up her studies as a language designer, which she also successfully completed in June 2013. In 2013 she also passed the stage maturity at the ZAV Stuttgart.
Since then she has been working as a language teacher with children of kindergarten age and as an acting teacher at a drama school in Vaihingen.