When Cosby returned to TV comedy in 1996 with CBS's "Cosby", he called Rashad to play Ruth Lucas, his character's wife. The pilot episode had been shot with Telma Hopkins, but Cosby then fired the executive producer and replaced Hopkins with Rashad. The sitcom ran from 1996 to 2000. That year, Cosby asked Rashad to work on his animated television series "Little Bill", in which the actress voiced Bill's mother, Brenda, until the show's end in 2004. She also played a role in the pre-show of the Dinosaur ride at Walt Disney World's Animal Kingdom theme park as Dr. Helen Marsh, the head of the Dino Institute.