Wednesday 06 August 2025 22:53 BST
Kelley Mack (Getty)
- Actor Kelley Mack has died at the age of 33 after being diagnosed with glioma of the central nervous system, a type of brain cancer.
- Her family announced the news, having previously set up a CaringBridge page to provide updates on her condition.
- Mack was known for her role as Addy in five episodes of The Walking Dead in 2019, and also appeared in 9-1-1, Chicago Med, and Spider-Man: Into the Spider-Verse.
- Glioma is the most common type of brain cancer in children and younger adults, originating in glial cells and categorized by cell type, growth potential, and aggressiveness.
- Symptoms can include headaches, vision problems, and seizures, with treatment options varying from surgery to chemotherapy and radiotherapy, depending on the tumour’s grade and location.
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