Sean Penn, the American actor is well known for his impactful performances and roles. From emotionally charged dramatic characters to thought-provoking ones, Penn's ability to breathe life into a diverse array of roles is a treat to look at. He effortlessly transforms into characters that leaves a long lasting impact on audiences’ minds. Whether he's a grieving father seeking justice, or an eccentric rock star on a quest for redemption, he fits into every role. The legendary actor turns 63 today. On his birth anniversary, here are some of his most memorable and compelling performances: