Lily Collias is an American actress best known for her performance as Sam in the 2024 film Good One. Collias has received critical acclaim for her performance in the film. Collias grew up in Santa Monica, Los Angeles, and moved to New York to pursue acting. She studied at The New School and trained at the Lee Strasberg Theatre & Film Institute. Before Good One, she appeared in Palm Trees and Power Lines (2022). Her upcoming credits include Roofman (2025) and The Young People (2026).