Walking Dead Actress Kelley Mack Dies at 33 After Rare Brain Cancer Battle
Kelley Mack, known for her role on The Walking Dead, passed away on August 2, 2025. She was just 33 years old. The actress died in Cincinnati after a brave fight with a rare and aggressive form of brain cancer.
Her family confirmed the heartbreaking news, sharing that Kelley died peacefully surrounded by loved ones. The Walking Dead actress had been diagnosed with diffuse midline glioma, a fast-growing cancer that affects the brain and spinal cord.
Kelley Mack’s Cancer Journey
Kelley started feeling back and leg pain in late 2024. At first, she thought it was from sitting too much or stress. But in January 2025, doctors discovered a tumor in her spine after an MRI scan.
“She was so strong,” her sister Kathryn wrote on Instagram. “We are devastated, but also proud of how bravely she fought.”
Kelley went through intense treatment, including proton radiation. She even posted videos learning to walk again after losing control of her legs. Despite everything, she stayed positive and creative, continuing to work on film projects and sharing her journey online.
What Is Diffuse Midline Glioma?
Diffuse midline glioma is a rare, deadly brain and spinal cord cancer that mostly affects children and young adults. It’s hard to treat, and survival rates are low. Experts say fewer than 10% of patients live beyond two years.
Many fans searching for “Kelley Mack cause of death” or “what cancer did Kelley Mack have” are learning more about this little-known disease. Her story is now bringing new attention to this type of cancer.
Remembering Kelley Mack
Kelley Mack was born in Cincinnati in 1992. She acted in commercials as a child and graduated from Chapman University in 2014. She starred as Addy in The Walking Dead and also appeared in Chicago Med and 9‑1‑1.
She wasn’t just an actress—Kelley also produced short films and worked behind the camera. Friends and fans describe her as kind, talented, and full of life.
A funeral will be held in Glendale, Ohio, on August 16. A celebration of life is also planned in Los Angeles.
Kelley’s passing is a reminder of how serious early symptoms like back or leg pain can be. As more people search terms like “early signs of brain cancer” and “Walking Dead actress dies,” her legacy may help others catch warning signs sooner.
Post a Comment