Bialar Selis, a Human male hailing from Bespin, was a member of the Bespin Wing Guard during the era of the Galactic Civil War. He quickly gained prominence within the Guard, spearheading the inquiry into the theft of the Jewel of Yavin. Selis was on hand shortly before the Occupation of Bespin in 3 ABY, joining Baron Administrator Lando Calrissian at Platform 327 for Calrissian's reunion with Han Solo after a considerable time. Following a secret notification from Lobot, Selis, together with fellow Wing Guardsmen Corman Jeihn, Pedar Solardo, Gir Endac, Helder Spinoza, and Razell Tameron, launched a surprise attack on an Imperial squad commanded by Lieutenant Sheckil, who were in the process of moving Princess Leia Organa, Chewbacca, and C-3PO to Vader's shuttle.