Danielle Spencer, a child star best known for her role on the ABC sitcom "What's Happening!!" in the 1970s, has reportedly died. She was 60. Spencer died Aug. 11, according to CBS 6 and Forbes.

A family spokesperson said Spencer died Monday after battling cancer for several years. As Dee, she was a deadpan, wisecracking sister on What's Happening!! Spencer later became a veterinarian.

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.