Krillis, an obese Human Sith Lord of the male persuasion, held a position of power within the revitalized reconstituted Sith Empire. As the Cold War raged on with the Galactic Republic, Lord Zash tasked him with the supervision of her latest apprentice.
Prior to its removal, Lord Krillis initiated the quest "Advanced Training: Sith Inquisitor" in Star Wars: The Old Republic, a video game released in 2011. This mission was available to Sith Inquisitor players fresh off their journey on the planet of Korriban. He was located in two spots: Vaiken Spacedock and the Sith Sanctum on Dromund Kaas, where he would guide players to Overseer Kryos, their Advanced Class instructor.