Yondu Udonta was a Centauri, leader of a key faction of the Ravagers, and a father figure to Peter Quill. When Quill betrayed the Ravagers and stole the Orb, Yondu began hunting down his former ally. As a result, Udonta captured Quill, but he persuaded him to help him in the war with Ronan the Accuser, who was going to destroy Xandar with the power of the Sphere; as a result, Quill stole the Infinity Stone from Yondu, despite his promise to give it to him. Although he lost the stone, Yondu decided not to try to get revenge on Quill, which caused distrust among his team.