Popsugar Celebrity Celebrity Instagrams Matthew Gray Gubler's Most Epic Halloween Instagrams Matthew Gray Gubler, Halloween's Biggest Fan, Has an Abundance of On-Theme Instagrams 13 September 2019 by Hedy Phillips View On One Page Photo 6 of 20 ADVERTISEMENT () Start Slideshow View this post on Instagram A post shared by official matthew gray gubler (@gublergram) on Nov 1, 2017 at 5:46pm PDT Share This Link Copy ← Use Arrow Keys → 6 Previous Next Start Slideshow Celebrity InstagramsMatthew Gray GublerHalloween