Sheriff of Roswell. He is the leader of the S.T.A.R. teams and Rinnaker's right hand man. He is very skillful in combat and in the use of weapons. Trueblood's father was also one of the original members of the Global Alliance. Trueblood became the chief of his tribe following his great uncle's death during a Lycanthrope attempt to eradicate another alien race, the Kachina. He fights honorably and although he normally obeys Rinaker, he will take matters into his hands if he feels Rinaker's orders risk the lives of others. Rinaker's actions ultimately cause Trueblood to distrust the general, and at one point he stole the Lycanthrope EMP bomb from Rinaker and moved it to the vision cave at his native home in Arizona. When Rinaker reveals himself to be Shadoen, Trueblood intercedes when he is about to kill Nick. He sacrifices himself to allow Nick to escape.