Little Bill is an American animated children's television series created by Bill Cosby for Nickelodeon's Nick Jr. block. It is based on the Little Bill book series, written by Cosby with illustrations by Varnette P. Honeywood. Cosby also composed some of the theme music, appeared in live-action in the show's opening sequence, and voiced the recurring character of Captain Brainstorm. It was Cosby's second animated series, after Fat Albert and the Cosby Kids.