Famous Friend is a term used to describe two famous actors, Penn and DAMON. Penn is a four-letter name, and DAMON is a five-letter name. Both are well-known for their roles in movies and television shows. Penn is best known for his roles in films such as Mystic River, Milk, and Dead Man Walking. DAMON is best known for his roles in films such as Good Will Hunting, The Departed, and The Martian. Both actors have won numerous awards for their performances.