7. Michael Emerson — The Dark Knight Returns
That’s right. Ben Linus, the creepy Dharma leader from Lost, doubled as the Joker in the adaption of the classic Frank Miller story.
The story shows the character’s return to his sadistic roots after years being calm in a mental hospital. Emerson’s performance lends the whole thing a sense of emotional vulnerability that really brings the character to life as he descends back into his old ways. Batman doesn’t typically kill, but Emerson’s Joker was able to push him to go over that limit. Emerson brought a level of intensity to the role that made a viewer feel truly anything could happen. He encapsulated Joker at his best and most frightening points. It’s really too bad Emerson will likely never return to voice him again given how his story ends.