Mini Bio (1). Ub Iwerks worked as a commercial artist in Kansas City in 1919 when he met Walt Disney who was in the same profession. When Disney decided to form an animation company, Ub Iwerks was the first employee he had due to his skill at fast drawing as well as being a personal friend. When Charles Mintz raided Disney's animation studio and stole the rights to their character Oswald the Rabbit, Ub was the only associate to remain with Disney.