Leonardo DiCaprio is my favorite young actor. All the movies he chose to play in, are meaningful and brain storming. Indeed, Shutter Island and Inception are among my all time favorites.
Leonardo is currently filming for a movie called J. Edgar, set to be launched in December 2010 or in the 1st quarter of 2011.
Plot: "Biopic on FBI director J. Edgar Hoover, focusing on his scandalous career and controversial private life as a homosexual and rumored cross dresser." Hoover was definitely the 'bad guy' and responsible for stolen Nikola Tesla's secrets (for the FBI) after his death.
DiCaprio is still young, his career will be awesome, I'm sure.
Peace to all!
P.S. Another great young actor is Matt Damon.