Born on April 4, 1979, Heath Ledger Passed Away on January 22, 2008. Before his sad demise, Ledger left the geeks worldwide a treasured property that we can't ever forget - the Joker in Christopher Nolan's The Dark Knight. Considered as the best superhero movie ever made by many, The Dark Knight is great because its antagonist is dangerously enigmatic. Joker truly has some great lines in the movie, some of which make for some very deranged life lessons that kinda make sense in this twisted world.