From The Walking Dead to Spider-Man: Into the Spider-Verse, Kelley Mack’s talent, courage and creative spirit leave a lasting mark on television, film and all who knew her.
Kelley Mack, a talented American actress and producer, passed away at the age of 33 on August 2, 2025, in Cincinnati, Ohio. Born Kelley Lynne Klebenow, she died peacefully, surrounded by loved ones, after bravely fighting glioma, a rare and aggressive brain cancer that affects the central nervous system. Her family, friends, collaborators and fans remember her not only for her work on screen, but also for her kindness, humor and resilience throughout her illness.
Early life and rise in television and film
Under her professional name Kelley Mack, she built a vibrant and steadily rising career in television, film and voice acting. She became widely known for her role as Addy in Season 9 of The Walking Dead, where her performance brought warmth and emotional depth to the post‑apocalyptic world of the hit AMC series.
Mack’s television work also included appearances in acclaimed network shows such as Chicago Med and 9-1-1, where she demonstrated versatility across drama and procedural storytelling. Her ability to inhabit grounded, human characters in high‑stakes situations made her a memorable presence even in brief screen time.
Voice work and producing: expanding her creative reach
Beyond live‑action roles, Kelley Mack contributed her voice to animated and hybrid projects, including work on the Oscar‑winning Spider-Man: Into the Spider-Verse, which became a landmark in contemporary animation and superhero storytelling. Her voice roles allowed her to connect with audiences in new ways, adding another dimension to her artistic range.
Off camera, Mack also worked as a producer on a number of notable projects, including the upcoming film Universal. Her growing involvement behind the scenes reflected a broader creative ambition: she wasn’t just interested in performing, but also in shaping stories, supporting collaborators and bringing new projects to life.
Family statement, memorials and celebrations of her life
Following her passing, Kelley’s family shared a heartfelt statement online, expressing their profound sorrow at losing her so young, and deep pride in her strength, grace and determination throughout her battle with cancer. They described her as a loving daughter, sister, partner and friend whose “light never dimmed, even in the hardest moments.”
To honor her memory, the family has planned a memorial service in Ohio on August 16, close to where she spent her final days, followed by a celebration of life in Los Angeles, the city where she lived and worked. These gatherings will bring together relatives, colleagues and friends to remember her impact both personally and professionally.
Legacy, loved ones and awareness of glioma
Kelley Mack’s creativity, dedication and vibrant spirit continue to inspire those who knew her and those who discovered her through her work. She leaves behind her parents, siblings, grandparents and her longtime partner Logan Lanier, all of whom were central to her life and supported her career and her fight against illness.
Her tragic passing also draws attention to the severity of glioma, described by the National Cancer Institute as the most common malignant brain tumor in adults and a condition that remains challenging to treat. By sharing her story, her family and fans help raise awareness of this aggressive cancer and the need for continued research, support and early diagnosis.
Kelley Mack’s legacy endures in her impactful roles, her work as a producer, and the way she faced adversity with courage and grace. For fans and peers around the world, she remains a symbol of talent, kindness and quiet strength, and her performances will continue to touch audiences for years to come.
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