The man who turns actors into zombies on the hit AMC TV series The Walking Dead visited Universal Orlando’s Halloween Horror Nights 24 Saturday.

Greg Nicotero, Co-Executive Producer and Director of Special Effects Make-Up, found himself surrounded by a horde of walkers at HHN 24.

During his visit Nicotero experienced the real-life terror of his own undead creations inside AMC’s The Walking Dead: End of the Line haunted house.

Universal Orlandosaid the house, which is the biggest one in Halloween Horror Nights history featuring the largest cast of scare actors, is one of this year’s most popular haunted houses, surpassing guest ratings from both 2013’s and 2012’s incredibly popular experiences based on the hit television show.