7. Robert Downy Junior
This celebrated actor is now known as one of the most popular superhero characters, Iron Man. With Robert Downey Senior to guide him, Robert began acting when he was just 5 years old in the movie Pound, and another movie called Greaser’s Palace at 7 years of age. However, his drug addiction kept Robert from bringing out his talent as an actor. In his later teen years, Robert was cast in Saturday Night Live but after a troubled performance he was soon replaced. Many years later, Robert has overcome his addiction and has been entertaining global audiences with his brilliant performances.