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Heath Andrew Ledger (4 April 1979 – 22 January 2008) was an Australian television and film actor. After performing roles in Australian television and film during the 1990s, Ledger moved to the United States in 1998 to develop his film career. His work encompassed nineteen films, including 10 Things I Hate About You (1999), The Patriot (2000), Monster's Ball (2001), A Knight's Tale (2001), Brokeback Mountain (2005), and The Dark Knight (2008). In addition to his acting, he produced and directed music videos and aspired to be a film director.