The term "James Dean" refers specifically to a famous American actor who lived from 1931 to 1955. He is best known for his roles in films that showed a moody and rebellious character, such as in "Rebel Without a Cause," "East of Eden," and "Giant." Because of his unique style and the way he portrayed his characters, he became a cult figure, which means he has a dedicated and passionate following even many years after his death.