David Thul was Jedi Master Lachlan Thul's brother. He was married to Lisa and had two children, Bobby and Lachlan Jr Thul. When the Ord Mentell Government joined the Separatists, during the Clone Wars, David led the Resistance movement against the government and the separatists. Prior to Ord Mentell joining the separatists, David was the Vice Prime-Minister of Ord Mentell.