(Born Aug. 17, 1960) Sean Penn is an Academy Award-winning American film actor. Penn launched his career with the film Fast Times at Ridgemont High in the role of Jeff Spicoli and has since starred in over 40 movies. He won an Oscar for Mystic River. Penn has also been nominated for three other Academy Awards in recognition of his roles in the films I Am Sam, Sweet and Lowdown and Dead Man Walking.