Popsugar Celebrity Halloween Costumes 2019 Scariest Celebrity Halloween Costumes 19 Celebrity Halloween Costumes That Came From Your Nightmares 31 October 2019 by Ryan Roschke View On One Page Photo 12 of 19 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 12 Ashley Madekwe as the Joker This instantly brings us back to Heath Ledger's brilliant, chilling performance in The Dark Knight. Previous Next Start Slideshow Halloween Costumes 2019HorrorAmber RoseHalloween CostumesHalloweenDemi LovatoKim Kardashian