Maria Perschy landed her first significant leading role in the German drama Nasser Asphalt (also known as Die letzte Nacht vor dem Weltuntergang). This film established her as a promising young actress in the German-speaking film industry.
Perschy made her Hollywood debut in John Huston's acclaimed biographical drama Freud: The Secret Passion. This marked her entry into international cinema, working alongside stars like Montgomery Clift and Susannah York.
Perschy achieved significant recognition in the horror genre with her role in the critically acclaimed Spanish film The House That Screamed (La residencia). This film became a genre classic and further showcased her versatility.