This list wouldn't be complete without the ultimate child-to-adult acting success story, Leonardo DiCaprio. We don't even know where to start in listing all of this man's achievements in the film industry - he has been working hard for years on so many great movies! Funny story - Leo actually started out as a five-year-old on Romper Room but was removed for being disruptive!
His first serious gig was a recurring role on the sitcom, Growing Pains. Next thing you know, he's starring opposite Robert De Niro in the film, This Boy's Life. He then delivered his first critically acclaimed performance in What's Eating Gilbert Grape, scoring himself nominations for both a Golden Globe and an Oscar. Since then, we've enjoyed seeing him in everything from Titanic and Romeo and Juliet, to The Great Gatsby and The Wolf of Wall Street.