Other articles where Keshia Knight Pulliam is discussed: The Cosby Show: …Bledsoe), and young Rudy (Keshia Knight Pulliam). Grandparents Anna and Russell Huxtable (Clarice Taylor and Earle Hyman) frequently appeared, and the irresistible Olivia (Raven Symone, who later starred in the Disney Channel’s That’s So Raven, 2003–07) was eventually introduced as Cliff and Clair’s five-year-old step-grandchild.