Darth Aragnas is a Sith Lord in the employ of the Sith Empire around 3,643 BBY. He is rivals with Nende Skye, a Jedi Master in the Jedi Order of the Republic. His most notorious crimes and activities all took place either on Curoscant or on Korriban, where he enacted various experiments. Eventually he fought Nende to the death at Curoscant.