A former agent of SHIELD, Wendell Vaughn is a cosmic-powered superhero known as Quasar. Equipped with energy-manipulating Quantum Bands, Quasar was appointed Captain Marvel's successor as Protector of the Universe by Eon, and has been a valued member of the Avengers and ally to the Guardians of the Galaxy. In the past, he was in charge of Project PEGASUS, led the short-lived teams the Starmasters and the Annihilators, and acted as Avatar of Infinity.