Actor who won a Golden Globe Award for Best Supporting Actor for Ally McBeal in 2000 and another for Best Actor for Sherlock Holmes in 2009.
He began acting at the age of five in one of his father's films, Pound.
He is a martial artist and is devoted to his practice of Wing Chun, and overcame his drug problems to star in Iron Man in 2008.
He dated actress Sarah Jessica Parker in 1984 after meeting on the set for Firstborn, but married Susan Downey in 2005.
He starred with Scarlett Johansson in The Avengers and Iron Man 2.