Little Bill is an American animated educational television series created by Bill Cosby. 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 intro sequence, and voiced the recurring character of Captain Brainstorm. It was Cosby's second animated series, after Fat Albert and the Cosby Kids.
The show's main character, Little Bill, is a fictionalized younger version of Cosby; the show's executive producer, Janice Burgess, described the character as "little Bill Cosby." Each episode features Little Bill learning a lesson while interacting with his large family and group of friends. The show was developed with a panel of educational consultants. The show is set in Philadelphia, Cosby's hometown. Little Bill's personality was inspired by both Cosby himself and his son, Ennis Cosby; Little Bill's catchphrase "Hello, friend!" was originally a greeting that Ennis used.
The series originally ran on Nickelodeon from November 28, 1999 to February 6, 2004, and reruns continued until December 22, 2006.