Colonel Tobin was a male Human officer in the Onderon military until 3951 BBY when he joined General Vaklu in his attempt to wrest control of Onderon from then Queen Talia. Despite an alliance with the Sith Lord Darth Nihilus, the revolution failed. Tobin was spared from death and forced to serve aboard Nihilus' flagship the Ravager. During the Battle of Telos IV, Meetra Surik boarded the Ravager, intent on destroying the ship and its master. There, she found Tobin and convinced him to help in the destruction.