Kelley Mack, Actress from “The Walking Dead,” Dies at 33

• Kelley Mack dies at 33
• Actress from The Walking Dead
• Battled a brain glioma

Actress Kelley Mack, best known for her role in The Walking Dead, passed away this past Saturday at the age of 33.

The news was shared through a statement on the social network CaringBridge, according to CNN.

Mack, whose real name was Kelley Klebenow, died in her hometown of Cincinnati after a courageous battle with a central nervous system glioma, a tumor that affects the brain and spinal cord.

The published statement read: “With deep sadness, we announce the passing of our beloved Kelley. A light so bright and fierce has moved on to the beyond, where we all must one day go.”

Kelley Mack, Actress from The Walking Dead, Has Died

‘The Walking Dead’ star Kelley Mack has passed away at 33. pic.twitter.com/g1raLIRpcs

— Pop Crave (@PopCrave) August 5, 2025

The post was accompanied by a photo of the actress and received thousands of condolences from friends, colleagues, and fans.

Mack was a talented actress who appeared in various film and television productions.

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Her most recognized role was Addy in season nine of The Walking Dead.

She also played Penelope Jacobs in Chicago Med and appeared in FOX’s 9-1-1.

Kelley Mack: Her Battle with Glioma

🚨🇺🇸 WALKING DEAD ACTRESS KELLEY MACK DIES AT 33

Kelley Mack – best known as Addy in The Walking Dead – has died after battling a rare and aggressive spinal cancer.

She was 33.

Diagnosed with diffuse midline glioma in late 2024, Mack documented her illness with honesty, grit,… pic.twitter.com/Qrosmu3Q6p

— Mario Nawfal (@MarioNawfal) August 6, 2025

Beyond her acting career, Mack also worked as a producer and appeared in national commercials for brands like Dr. Pepper, Ross, and Chick-fil-A.

Her colleagues in the TV industry fondly shared memories of her.

Alanna Masterson, who also starred in The Walking Dead, wrote on social media: “What an incredible person! I’m so proud to have fought alongside her in our final episode together.”

Throughout her career, Mack earned 35 acting credits and five as a producer.

The Impact of Kelley Mack on Television

Her passion for acting began in childhood, when she received a small video camera as a birthday gift.

From there, she dedicated herself to storytelling, starting with commercial work.

Those close to her highlighted her warmth, creativity, and unconditional support for those around her.

The statement emphasized her contagious enthusiasm and strong work ethic, which inspired many in the entertainment industry.

Conclusion

Kelley Mack leaves behind a legacy that will live on through her contributions to film and television.

She is survived by her parents, sister, brother, grandparents, and her partner, Logan Lanier.

Though she is no longer with us, her vibrant spirit and talent will live on in the hearts of those who loved her.