Chegg was a male Keshiri who served as captain of the Southern Star which was sent by the Lost Tribe of the Sith government in Tahv on an exploratory mission to the polar continent of Eshkrene in 2974 BBY. Prior to this mission, he reluctantly took on the Human Sith outcast Parlan Spinner as a crew member aboard the Southern Star. During this voyage, a second human stowaway—the Sith princess Takara Hilts—surfaced on his ship. While exploring Eshkrene, Chegg and his Keshiri crew attempted to kill the two Humans when they tried to desert the ship. During the pursuit, Chegg and several of his crew were murdered by several members of the Doomed, the descendants of ancient Jedi and Dark Jedi stowaways from the Hundred-Year Darkness.