Danielle Spencer, who played the precocious youngster Dee Thomas on the 1970s ABC sitcom What’s Happening!!, has died. She was 60. Spencer died Monday in a hospital in Richmond, Virginia, her What’s Happening!! co-star Haywood Nelson told The Hollywood Reporter .

On TV's "What's Happening!!" Danielle Spencer turned herself into a household name at just 11 years old, playing sassy and quick-witted Dee Thomas.

She starred on the 1970s sitcom as Dee, the younger sister offering a steady stream of deadpan roasts of her big brother Roger “Raj” Thomas and his friends.