We could debate endlessly the effect Heath Ledgers death had on how people reacted to the Joker. Would he have still won the Oscar for Best Supporting Actor (probably not) and would The Dark Knight have raked in over a billion at the box office (certainly) had he not overdosed in January 2008? But ultimately, its fruitless and distracts from the over majesty of his last fully completed role (his actual final role was Tony in The Imaginarium Of Doctor Parnassus, but he died before filming was completed).
The Joker embodies everything that was so revolutionary about The Dark Knight Trilogy. He was one of the most comic booky concepts and yet came out of the Nolan think tank as a realistic (as much a psychopathic clown could be), fully rounded human being. What still really amazes me, however, is that while he stole the show as far as iconography goes, the career defining performance didn't take away from The Dark Knight's ensemble nature.
But as much as Christopher and Jonathan Nolans script (taking inspiration from the characters vast and varied comic history), written with Ledger in mind, had a big part to play in shaping the character, theres some amazing little tics Heath brought to the role. Famously locking himself away to perfect the characterisation, he came up with these little things that you either dont notice initially, or dont appreciate their importance in making such a formidable screen villain. Here are eight of those genius strokes that defined the great actors legacy.