Heath Ledger first became a blip on fandom radar in the short-lived fantasy series Roar. Ledger was able to move past that with roles in numerous films; including an Oscar-nominated turn in Brokeback Mountain.
What had fandom really geeked out was his upcoming role as The Joker in The Dark Knight. Initial discussion on the news channels discussed a recent interview he gave in which he said that playing The Joker disturbed him so greatly that he was suffering from insomnia. He said that the character was a sociopath and lacked any redeeming qualities.
In what is sure to become the stuff of legend, the actor had turned to sleeping pills in an attempt to get control over the insomnia that had plagued him since filming of that movie.