India, Aug. 12 -- Danielle Spencer, who portrayed enthusiastic child Dee Thomas on the ABC sitcom What's Happening!! in the 1970s, died at the age of 60.

Haywood Nelson, her What's Happening! co-star, informed The Hollywood Reporter that Spencer passed away on Monday in a hospital in Richmond, Virginia.

She had a double mastectomy in 2014 after being diagnosed with breast cancer. Spencer also underwent emergency surgery in 2018 to avert cerebral hemorrhage. A GoFundMe site was established to assist her in covering her medical costs.

"We have lost a daughter, sister, family member, What's Happening cast member, veterinarian, animal rights proponent and healer, and cancer heroine," Nelson wrote on Instagram. "Our Shero. Danielle is loved...