Sir Trilag was a male Human who held a leadership role within the Mecrosa Order of assassins. During the Galactic War, he operated under the alias "the Creeper" as a member of the clandestine Star Cabal. Trilag's life came to an end during a conflict on the Star Chamber, where Cipher Nine, an agent working for the reconstituted Sith Empire, successfully infiltrated the space station and eliminated the core members present.