The “Walking Dead” star openly chronicled her health battle and had recently celebrated her birthday before her family announced her death online.
Kelley Mack died on August 2, 2025, in Cincinnati, shortly after turning 33 on July 10. Her family shared the news on CaringBridge, a nonprofit health platform, and on her Instagram page in a statement written by her sister, Kathryn.
In a statement, Kathryn wrote that the actress “passed peacefully on Saturday evening with her loving mother Kristen and steadfast aunt Karen present,” calling her “a bright, fervent light” who “will be missed by so many to depths that words cannot express.”
On CaringBridge, the family said Kelley died after battling glioma of the central nervous system, a rare and aggressive form of brain cancer…