3 of 11:
In a posthumous win, Heath Ledger won best supporting actor for his role as the Joker in the 2009 film 'The Dark Knight.' Ledger's family accepted the award on his behalf. In 2005, Ledger was nominated for best actor for his role in "Brokeback Mountain'.
(Top: Courtesy of Warner Bros. Entertainment Inc / Bottom: Bryan Crowe / A.M.P.A.S.)