Green Lantern Corps
Doctor Ub'x is a fictional character in the DC Universe. He first appeared disguised as the villain Polestar in "Green Lantern Corps" #201 (June 1986), then disguised as the villains Truk, Malignon, and his true form in "Green Lantern Corps" #202 (July 1986). Ub'x was named after the famed Walt Disney animator Ub Iwerks.