I’m deeply saddened to hear about the passing of Kelley Mack, a talented actress known for her roles as Addy in Season 9 of The Walking Dead and guest appearances in 9-1-1 and Chicago Med. She died on August 2, 2025, in her hometown of Cincinnati, Ohio, at the age of 33, following a battle with diffuse midline glioma, a rare and aggressive form of cancer affecting the central nervous system. Diagnosed in November 2024, Mack faced significant challenges, including losing the use of her legs after a spinal cord biopsy, yet she showed remarkable resilience, sharing updates of her recovery progress, such as walking stairs with her boyfriend Logan’s support. Her family announced her peaceful passing, surrounded by her mother Kristen and aunt Karen, noting her spirit continues to appear to loved ones as butterflies. Mack’s career spanned 35 acting credits and five as a producer, with notable roles in Broadcast Signal Intrusion, Mr. Manhattan, and voice work as Gwen Stacy in Spider-Man: Into the Spider-Verse. Her passion for storytelling began with a childhood video camera, leading to an acting award from Tisch School of the Arts for her debut in The Elephant Garden (2008). Tributes from co-stars like Alanna Masterson and director Michael Satrazemis highlight her warmth, creativity, and inspiring presence. A celebration of her life is planned for August 16 in Ohio, with another in Los Angeles. She is survived by her parents, Kristen and Lindsay Klebenow, siblings Kathryn and Parker, grandparents Lois and Larry, and boyfriend Logan Lanier. Her legacy lives on through her contributions to film and television.