Heath Ledger

Though the best supporting actor winner passed away in January 2008, he was midway through production of his “Dark Knight” follow-up with director Terry Gilliam. The film, “The Imaginarium of Dr. Parnassus” shut down briefly before the director recruited Johnny Depp, Jude Law and Colin Farrell to complete Ledger’s role in a unique and creative way: When the character of Tony passes into different worlds, he’ll be played by the various actors.

(At left, Ledger pictured at the 2006 Oscars.)