Kim Mousa was born in Milan on November 16, 2000. He began his studies in the field of acting at the age of 15. He obtained a BFA in dramatic acting at the University of Turin. He undertakes an MFA in film acting at Studio Emme Turin. He undertakes a 4-week Masterclass journey with Willem Dafoe in Rome where he met various directors and actors in the field of cinema. So he decided to start a masterclass journey with the director Ferzan Ozpetek. He kept in touch with a casting director, known in Rome, who proposed him to return to Rome for a casting that changed his path in the world of cinema. He decided to undertake a course of study at the NEW YORK FILM ACADEMY in Los Angeles in dramatic film acting.