James Byron Dean (February 8, 1931 – September 30, 1955) was an American film actor. Dean's mainstream status as a cultural icon is best embodied in the title of his most cited role in Rebel Without a Cause. His enduring fame and popularity rests on only three films, his entire starring output. He was the first person to receive a posthumous Academy Award nomination for Best Actor and remains the only person to have two such nominations posthumously. Dean began his professional acting career with a Coca Cola television commercial, followed by a stint as a stunt tester for the Beat the Clock game show.