Rudith Lillian "Rudy" Huxtable[1][2][3][4] is a fictional character who appears on the American sitcom The Cosby Show (1984–1992). Portrayed by actress Keshia Knight Pulliam, Rudy is the youngest child of Cliff and Clair Huxtable. First appearing alongside her family in the pilot episode "Theo's Economic Lesson", which premiered on September 20, 1984, Rudy matures from a precocious five-year-old girl into a teenager longing for independence throughout the course of the series' eight year-long run.read more