Kelley Mack, born Kelley Lynne Klebenow on July 10, 1992, in Cincinnati, Ohio, made a significant mark in the entertainment industry as an actress, producer, and voice-over artist. Starting her career in commercials as a child, Mack’s passion for storytelling was nurtured early and led to her award-winning debut as Chloe in "The Elephant Garden" in 2008, which earned praise at the Tribeca Film Festival. She later expanded her education in film production and cinematography, balancing on- and off-camera talents. Her career included more than thirty-five acting credits and several producer roles, as she steadily built her professional legacy.

Mack gained widespread recognition for her portrayal of Addy in season nine of AMC’s popular series "The Walking Dead," appearing in five episodes and leaving a memorable impression on fans and castmates alike. She was also known for roles in TV dramas such as "Chicago Med," FOX’s "9-1-1," and appearances in films like "Broadcast Signal Intrusion" and "Mr. Manhattan". Forging a path behind the camera, Mack produced acclaimed shorts such as "A Knock at the Door," which won festival awards, and served as executive producer on the forthcoming film "Universal". Her voice acting included providing the voice match for Hailee Steinfeld’s Gwen Stacy in the Oscar-winning "Spider-Man: Into the Spider-Verse".

Her life was marked by creative partnerships within her family. Mack collaborated with her mother, Kristen Klebenow, on several feature-length screenplays and found inspiration in a home rich with artistic encouragement. Her brother, Parker Mack, is also an actor, and the siblings maintained a strong artistic bond, mutually supporting each other’s endeavors in film and television. Mack also devoted efforts to film production, writing, and editing, credits that reflected her determined and versatile approach to the cinematic arts.

Tragically, Kelley Mack passed away on August 2, 2025, at the age of 33, after a private battle with glioma of the central nervous system, a rare and aggressive cancer impacting the brain and spinal cord. She died peacefully in her hometown of Cincinnati, surrounded by family members who released heartfelt tributes, honoring her as a creative force, loving daughter, and cherished sibling. Her memory is celebrated by friends, coworkers, and fans who remember her not only for her professional achievements but for the warmth, resilience, and inspiration she brought into their lives.