It’s just shy of 20 years since Fox’s creepily addictive drama The X-Files debuted on TV. The series launched the careers of series leads David Duchovny and Gillian Anderson and forever cemented the names of Mulder and Scully in the pop culture hall of fame. Creator Chris Carter crafted a rogue’s gallery of memorable characters lurking in the shadows throughout the nine seasons of the series (and two theatrical movies). Snakkle takes a look at some of our favorites and checks in with where the actors are now.

Supernatural started as a road show, and its “monster of the week” format allowed for a wide variety of guest stars. But things really heated up when those monsters and demons started inhabiting some of the guest stars, making some very pretty people do some very bad things. Here are some of Snakkle’s favorite demons in their celeb “meat suits.”