The Joker is one of the most recognizable villains in comic book and movie history. In 2008, Heath Ledger brought one of our favourite characters back to the big screen. His portrayal of the evil and sadistic clown prince of chaos was as gritty and realistic as we?d ever seen. Ledger?s Oscar-winning performance without doubt contributed to the movies? critical and commercial success. Today, many consider The Dark Knight as the best superhero movie of all time.