Popsugar Entertainment Halloween X-Men Halloween Costumes 20 Options For Your Coolest X-Men Costume Ever October 17, 2017 by Maggie Panos View On One Page Photo 11 of 21 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 11 Beast, Kelsey Grammer Edition What to wear: Full-on blue face paint with impressive blue sideburns. Toss on a doctor's lab coat. How to act: You're brilliant and you have heightened senses. The fact that you're a blue beast is really just an afterthought. Previous Next Start Slideshow HalloweenX-MenHalloween CostumesGroup Halloween CostumesPop Culture Halloween CostumesDIY Halloween CostumesMoviesHalloween Costumes For MenHalloween Costumes For Women