Harley Quinn is definitely in as far as Halloween costumes are concerned.
The demented beauty from Suicide Squad played by Margot Robbie will be the year's most popular costume by far. Something called Google Frightgeist “pulled from the top 500 costume searches in the United States” to confirm that the Joker's squeeze will be the costume you can't avoid on Oct 31 and any costume parties you hit this weekend.
That famed Australian Harley Quinn doppelganger already has her costume perfected:
But she's definitely not the only expert impersonator. There are plenty of other Harley Quinn costumes all over Instagram, and some of them could seriously give Margot Robbie a run for her money. Here's a sampling: