The Walking Dead Actress Kelley Mack Dies At 33 After Battle With Rare Cancer

American actress Kelley Mack, known for her role as Addy in The Walking Dead Season 9, has passed away at the age of 33 after a brave battle with diffuse midline glioma, a rare spinal tumor. Mack's family announced her death on Instagram, revealing that she was diagnosed with the aggressive cancer in January.

Despite undergoing intense radiation treatment and small victories in her health, Mack's condition deteriorated in recent months. Born on July 10, 1992, Mack had an impressive acting career with 35 credits to her name, including a role in Chicago Med.

Her family described her as a bright light and shared that they find comfort in signs of her presence, like seeing butterflies.