Danielle Spencer, who played the wisecracking and tattling little sister Dee Thomas on the 1970s sitcom “What’s Happening!!” has died.

Child star Danielle Spencer, who portrayed Dee Thomas on the 1970s comedy TV series “What’s Happening!!,” has died at 60, according to former co-star and friend Haywood Nelson.

Danielle Spencer, child star of "What's Happening!!" has died at 60 after a battle with cancer, though an official cause of death has not been announced.