Popsugar Entertainment Halloween TV Halloween Costumes 2015 Halloween Costume Inspiration From This Year's Hottest TV October 16, 2015 by Shannon Vestal Robson View On One Page Photo 28 of 43 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 28 Supergirl From Supergirl What to wear: You know this outfit! Wear a blue long-sleeve leotard with a red miniskirt and red cape. How to act: Virtuous and like you might leap out of the building at any minute. Previous Next Start Slideshow HalloweenHalloween CostumesTV