Before he was the king of the world, Leonardo DiCaprio was a teenage sitcom actor, joining Growing Pains in 1991. Two years later, at 19, he earned an Oscar nomination for What's Eating Gilbert Grape.
Titanic made him a global heartthrob in 1997, but he spent the next two decades proving he was far more than a pretty face. He finally won his Oscar for The Revenant in 2016.