Popsugar Entertainment American Horror Story American Horror Story Halloween Costumes Every American Horror Story Character You Could Be For Halloween October 25, 2020 by Maggie Panos View On One Page Photo 40 of 93 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 40 Sister Mary Eunice, Asylum What to wear: A nun's habit, complete with a gold cross around your neck. How to act: Straight-up evil, but be sly about it. Previous Next Start Slideshow American Horror StoryHalloweenHalloween CostumesPop Culture Halloween CostumesTVAmerican Horror Story HotelHalloween Costumes 2020