Kelley Mack was a dedicated and hard-working actress, producer and voiceover artist best known for playing Addy in The Walking Dead. But Mack’s life was cut short in 2025 after a months-long cancer battle. She was only 33 when she died, and her sister penned a heartfelt Instagram caption announcing her death.
“Kelley passed peacefully on Saturday evening with her loving mother Kristen and steadfast aunt Karen present,” the post read. “Kelley’s Caringbridge link in her bio includes the 2-page formal announcement with information on her upcoming life celebration in Ohio on August 16th. She would want you all to know how much she loves you. And as her sister, I want you all to know how brave that tough SOB was, especially when she decided to make the leap to be reunited with God. I’m so f**king proud of her.”
Below, News47.us has compiled five facts about Kelley.
The Walking Dead fans were first introduced to Mack in season 9. Her character, Addy, was a Hilltop Colony survivor.
According to her IMDb profile, Mack branched out to more than just acting by working behind the camera a few times. The Ohio native studied film production and cinematography.
