Greg Nicotero Teases Down and Dirty Spawn Designs for Todd McFarlane's Reboot Greg Nicotero Teases Down and Dirty Spawn Designs for Todd McFarlane's Reboot FX master Greg Nicotero was speaking ahead of his appearance at San Diego Comic Con, and spent a little time talking about his creations for the 'hard r-rated' movie. While news of Blumhouse's Spawn franchise reboot has been thin on the ground for a long time now, San Diego Comic-Con provided special effects make up artist and co-founder of KNB EFX Group Greg Nicotero the opportunity to give an update on some of the things he has been involved with in the upcoming movie.