Popsugar Entertainment Halloween The CW Halloween Costumes 40+ Costumes You Can Wear This Halloween If You're Obsessed With The CW October 25, 2017 by Kelsie Gibson View On One Page Photo 42 of 43 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 42 Mary From Reign What to wear: A gorgeous gown and a crown atop your brown wig. How to act: Speak in a regal British accent with authority. Previous Next Start Slideshow HalloweenHalloween CostumesThe CWGroup Halloween CostumesPop Culture Halloween CostumesTV