Popsugar Entertainment Halloween TV Character Halloween Costumes 2016 Over 40 Halloween Costumes Based on This Year's Hottest TV Shows October 27, 2016 by Ryan Roschke View On One Page Photo 13 of 44 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 13 Castiel From Supernatural What to wear: A tan trench coat, a button-up shirt, and a tie. Bonus points if you can find something that looks like an angel blade! How to act: Generally confused by humans. Cas also has a very staccato, proper way of speaking English. Previous Next Start Slideshow HalloweenHalloween CostumesPop Culture Halloween CostumesTV