Cosby' star Keshia Knight Pulliam honors Malcolm-Jamal Warner with emotional tribute, calling him her 'big brother' after his death.

Amy Sussman/Getty ImagesKeshia Knight Pulliam is honoring her former The Cosby Show co-star Malcolm-Jamal Warner after his ...

Keshia Knight Pulliam is paying tribute to her late Cosby Show costar, Malcolm-Jamal Warner . The actress, who was only six years old when she first starred as Rudy Huxtable on the sit-com, remembered ...