6. Bruce Lee
Before Jackie and Jet, there was Bruce. Lee single-handedly popularized martial arts action films in the United States with films such as "The Big Boss," "Fist of Fury," "Way of the Dragon" and "Enter the Dragon." Not to mention his role as Green Hornet's sidekick, Kato. Though iconic in death (at age 32), there's no telling how massive his career could have become if he were still alive. —XFINITY Entertainment Staff (Photo: Archive Photos/Getty Images)
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