Liam was born in Rome in 2007, the son of a Sicilian father and an American mother, both actors. Growing up backstage, he started working at a young age in a web series, then in film with Cuori Puri directed by Roberto De Paolis (which participated in the Quinzaine Des Réalisateurs at Cannes). The following year, he portrayed the young vampire, Luciano, in 2 seasons of the international series Heirs of the Night (nominated for an Emmy) airing on the BBC, Amazon Prime and Lifetime. In 2021, he played Giulio in the globally successful Netflix series Di4ri, and in 2023, he filmed the second season. Between seasons, he participated in the film Eddie & Sunny, directed by Desmond Devenish. In 2024, Liam acted in the short La Pelle che mi Separa da me, and L’Anello Ritrovato, a RAI TV project to commemorate International Holocaust Remembrance Day. In 2025, he acted in Cecilia e la Casa Segreta, the second installment of the same RAI project.