Cooper Alexander Hoffman is a rising American actor who gained instant acclaim with his film debut in Paul Thomas Anderson's coming-of-age dramedy Licorice Pizza (2021), which earned him a Golden Globe nomination. As the son of the late Academy Award-winning actor Philip Seymour Hoffman and costume designer Mimi O'Donnell, he carries a powerful cinematic lineage while defining his own modern career. Expanding his range across genres, he has since taken on major roles in historical biopics like Saturday Night (2024) and prominent literary thrillers such as Stephen King's The Long Walk (2025).