I am wondering what type of Villains are missing from the TV shows and movies. You have your cold war Russians with the Klingons. The Romulans are your espionage villains. The borg are the "Zombies" of Star Trek, the unsurmountable foe that we are afraid will take us over and turn us into a drone. The Ferengi represent Capitalism at its worst.
I am trying to find a villain type that is represented in other popular culture but doesn't have a face in Star Trek. Any ideas?