Today would have been Heath Ledger's 35th birthday. Heath first hit the Hollywood scene in 1999, stealing hearts and winning fans as Patrick Vernon in 10 Things I Hate About You. From there, the Australian actor became a bona fide heartthrob with roles in The Patriot and A Knight's Tale, and he later entered Oscars territory with his memorable performances in Brokeback Mountain and The Dark Knight. Tragically, Heath passed away in January 2008, but six years later, he continues to live on through his unforgettable roles. In honor of his birthday, here are 35 ways we'll always remember Heath Ledger.