5. Iron Man
When billionaire playboy Tony Stark (played on film by Robert Downey Jr.) suffers a life-threatening chest injury, he builds a suit of armor to save his life. Stark later evolves the suit into a crime-fighting weapon and becomes the superhero known as Iron Man. the character has appeared on the big screen in "Iron Man," "Iron Man 2" and "The Avengers."—Xfinity Entertainment Staff (Photo: Paramount)
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