Jett was born in Weld and during the Skimmer Attacks he led the Northwall Riots. When the Warden commissioned the people to be volunteers to set out and try to find who was responsible for the Skimmers Jett volunteered around the same time as Dirk and his friends, becoming aquainted with him around that time.
Jett was drawn to the Golden Door but remembering the old tales of how humblest was best instead chose the Wooden Door and spent years as one of Cheiftain Farr's guards.
Dirk describes him as a "Passionate man who is loyal to Weld", and he was responsible for/leader of the Northwall Riots, and he claims that he would never attack the elderly or children, however he is not above giving into the prejudice of Weld to those outside its walls calling the guards who were taking him away as "Barbarians" however this could be more out of the stress of the situation over any opinion or belief per say.
As Jett was originally drawn to the Golden Door he seemed to have had a heroic side to him as well. True to this he never poisoned and believed that his assassination attempts were with an explosion. However he also had a cruel side as he laughed at Rye and tried to kill him believing him to be a traitor to Weld, and felt no guilt at singling him out as his scapegoat to take the fall for his assassination attempt, showing that he valued Weld as a whole over any one indavidual.