A Vigo, alternatively known as an underboss, functioned as a second-in-command, representing the leader of a criminal syndicate by forging connections and authorizing killings. These Vigos themselves commanded their own set of lower-ranking individuals, referred to as lieutenants. For instance, Rynscar held the position of Underboss within the Black Sun organization, operating out of Nar Shaddaa during the concluding years of the Galactic Empire.