Joseph Leonard Gordon-Levitt (born February 17, 1981) is an American actor whose career as both a child and adult has included television series, theatrical films, and stage performances. He is perhaps known for his roles as Tom Hansen in the 2009 indie (500) Days of Summer, as Arthur in the Christopher Nolan-sci-fi Inception, as Cameron James in 10 Things i Hate About You and as Rex Lewis/The Doctor/Cobra Commander in G.I. Joe: The Rise of Cobra.
Beginning in commercials as a young child, he went on to appear in a number of television films and series, including a lead role in a television revival of Dark Shadows and a film debut in 1992's Beethoven. An appearance inA River Runs Through It followed, along with a starring role in the 1994 movie Angels in the Outfield, as Roger Bomman. Gordon-Levitt subsequently co-starred in the television sitcom 3rd Rock from the Sun (1996–2001) as the young Tommy Solomon, and had a major supporting role in the 1999 film 10 Things I Hate About You.
After a hiatus during which he attended Columbia University, Gordon-Levitt abandoned television but returned to film acting as an adult, appearing in various independent films, beginning with the 2001 film Manic, followed by the acclaimed roles in 2004's Mysterious Skin and 2005's Brick. In 2009, he played the lead role in the well-reviewed(500) Days of Summer, which gained him a nomination for the Golden Globe Award for Best Actor – Motion Picture Musical or Comedy. He runs an online collaborative production company titled HitRECord.