Popsugar Entertainment Halloween Pop Culture Halloween Costumes 2015 This Year's Hottest Pop-Culture-Inspired Costumes October 28, 2015 by Shannon Vestal Robson View On One Page Photo 43 of 68 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 43 Jaqen H'ghar From Game of Thrones What to wear: A long hooded gray robe with a rope belt. Bring extra face masks so you can change faces periodically. How to act: Never use the second person; instead refer to people as "a girl" or "a boy." Ex.: "A girl dresses up for Halloween." Previous Next Start Slideshow HalloweenHalloween CostumesTVMovies