Sounac was a Trandoshan who lived in the Coruscant Undercity. After a speeder flown by a group of Believers crashed in the Undercity, a group of spacers that were pursuing it arrived shortly afterwards and Krood was among a group including the human Ilok, the Coruscani Ogre Bartle and the Trandoshans Dure and Krood, who attacked them.