Sith

The Sith is an organization in the Star Wars universe whose members dedicate themselves to the dark side of the Force. The Sith members, known as Sith Lords or Dark Lords of the Sith, traditionally use the title Darth before their Sith name. The Sith are the archenemies of the Jedi and, like them, their main weapon is the lightsaber. They only exist two at a time: a master and an apprentice, and are the main antagonists in the Star Wars film series as well as in many other Expanded Universe works.