An undead Sith
Undead Sith warriors were ancient, deceased Sith combatants found within the Dark Force Temple catacombs located on Dromund Kaas. They were ghastly figures, and they favored the use of Force lightning as their weapon.
The Temple's dark side aura revived their decaying forms in order to defend the temple from any intruding presence. During her search for Kyle Katarn on Dromund Kaas, Mara Jade encountered these reanimated warriors.