Kelley Mack, known for her role as Addy in Season 9 of The Walking Dead, passed away on August 2, 2025, at the age of 33 in her hometown of Cincinnati after a battle with glioma, a rare and aggressive brain cancer affecting the central nervous system. Her family announced the news on her Instagram, describing her as a “bright, fervent light” who passed peacefully with her mother, Kristen, and aunt, Karen, by her side. Career Highlights Born Kelley Lynne Klebenow on July 10, 1992, Mack discovered her love for storytelling as a child after receiving a mini video camera. She began acting in commercials and earned early recognition for her role as Chloe in The Elephant Garden (2008), winning...