Kelley Mack, the talented actress known for her role as Addy in The Walking Dead, has died at the age of 33 following a tough battle with a rare form of brain cancer.
As reported by Eko Hot Blog, Mack passed away on August 2, surrounded by her loved ones at her family home in Cincinnati, Ohio. The actress was diagnosed in late 2024 with diffuse midline glioma, a rare and aggressive type of cancer that affects the brain and spine.
In her final months, she had publicly shared the painful journey that began with severe back and leg pain symptoms she initially mstook for a slipped disc.
Mack’s family confirmed her passing in a heartfelt statement, describing her as a “fervent light” whose creative energy, love for others, and strength were evident until the end. Fans and fellow actors have since flooded social media with tributes, remembering her as deeply kind, talented, and incredibly brave.
Kelley Mack, whose full name was Kelley Kristianne Klebenow, rose to fame through her performances in TV series such as The Walking Dead and Chicago Med. She also featured in 9-1-1, Broadcast Signal Intrusion, and several national commercials.
A graduate of Chapman University’s Dodge College of Film and Media Arts, Mack was not just an actress but also a producer, with five projects to her credit. She was admired for her dedication to the craft and her ability to inspire others, even while privately fighting for her life.
Kelly Mack
In one of her last Instagram updates, she opened up about her condition, revealing how she had become partially paralyzed and had to rely on mobility aids. Her candid storytelling brought attention to the signs of brain and spinal tumors, making her more than just a screen star—she became a quiet advocate for awareness and early diagnosis.
Her family has announced that a public memorial service will be held on August 16 in Glendale, Ohio. A separate celebration of life is also planned in Los Angeles, where Mack spent over a decade building her career.
Kelley Mack’s passing marks a painful loss in the entertainment industry. Her courage, vulnerability, and light will be remembered far beyond the roles she played on screen.
