Kelley Mack as Addy and Joe Ando-Hirsh as Rodney in The Walking Dead. AMC


August 06, 2025 Tags:

Kelley Mack, the actress cherished by fans for her role in The Walking Dead, has passed away at the age of 33. Her family confirmed that she died peacefully on Saturday in her hometown of Cincinnati after battling glioma, a form of brain and spinal cord tumor.

A Promising Talent Lost Too Soon

Kelley Mack, born Kelley Klebenow, was known for lighting up both the screen and the lives of those around her. She played Addy in Season 9 of The Walking Dead, a role that brought her to the attention of a global audience. She also appeared in Chicago Med and FOX’s 9-1-1, taking on the role of Penelope Jacobs.

Her passing was announced through a heartfelt Instagram post on Tuesday. It described her as a “bright, fervent light” whose journey had now come to an end. The post was accompanied by a poignant photo of the actress, capturing her warmth and vibrant spirit.

Tributes from Co-Stars and Fans

Since the news broke, condolences have flooded in from across the entertainment world. The Walking Dead co-star Alanna Masterson, who shared scenes with Mack, wrote: “What an incredible human. So proud to have fought alongside her in our final episode together.”

Friends, fans, and colleagues alike remembered her as a gentle, passionate, and generous soul. Many noted her dedication to her craft and her uplifting presence on set.

A Creative Journey that Began in Childhood

Kelley’s passion for performance and storytelling began early. She received a mini video camera as a birthday gift when she was a child, a moment that sparked her love for film. Soon after, she began acting in commercials and gradually built a solid career in both acting and producing.

Her resume includes 35 acting credits and five producing credits. She was also the face of various well-known brands, appearing in ads for Dr. Pepper, Dairy Queen, Ross Stores, and Chick-fil-A. Her work extended to voiceovers, reflecting her versatility as an artist.

Kelley Mack Fitch the Cat Photography

A Life Lived with Grace and Gratitude

A graduate of Hinsdale Central High School, Kelley later earned a degree in cinematography from Chapman University’s Dodge College of Film and Media Arts in California. Her education laid the groundwork for a multifaceted career that was just beginning to bloom.

In a statement shared through CaringBridge, her family described her as someone known for her “warmth, creativity and unwavering support for those around her.” They said her “infectious enthusiasm” and deep love for storytelling touched the lives of many, both inside and outside the industry.

Remembering Kelley

Kelley Mack is survived by her parents Kristen and Lindsay Klebenow, sister Kathryn, brother Parker, grandparents Lois and Larry Klebenow, and her boyfriend, Logan Lanier.

Her family shared that her legacy will live on—not only in the films and shows she was part of, but also in the hearts of those who loved and admired her.

“She will be deeply missed,” the statement read, “but forever remembered for her talent, kindness and vibrant spirit.”

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