Through the lens: Kelley Mack’s top career moments in pictures

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Film producer and actress Kelley Mack, who was best known for her work in the television series titled Walking Dead, passed away on August 2. Born as Kelley Lynee Klebenow, the young actress died in her hometown of Cincinnati after battling brain cancer. Mack was diagnosed with a rare and aggressive form of brain cancer known as central nervous system glioma. Mack, an acclaimed actress, producer and writer, was just 33 years old at the time of her passing (Photo source: Official Instagram handle @itskellymack)

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 Kelley Mack began acting as a child, starring in commercials before earning early critical praise for her lead role in the 2008 short film The Elephant Garden, which won the Student Visionary Award at Tribeca and earned her an Acting Award from NYU’s Tisch School of the Arts. (Photo source: Official Instagram handle @itskellymack)

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Mack expanded her presence with guest roles in shows like Chicago Med (as Penelope Jacobs), 9-1-1, and the Modern Family spinoff Schooled, highlighting her versatility across TV genres. (Photo source: Official Instagram handle @itskellymack)

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 Her film credits include major roles in the psychological thriller Broadcast Signal Intrusion (2021) and indie films like Mr. Manhattan, Delicate Arch (2024), and the upcoming film titled ‘The Universal’. (Photo source: Official Instagram handle @itskellymack)

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 She was an accomplished voice actor, providing the Gwen Stacy (Hailee Steinfeld) voice match in commercial spots for Spider-Man: Into the Spider-Verse. (Photo source: Official Instagram handle @itskellymack)

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As a filmmaker, Mack produced, wrote, and directed several short films, including Positive (2015), A Knock at the Door (2016) — which won the Festival Award at Atlanta Horror Film Festival — and The Kingdom (2014), earning industry accolades for her work behind the camera. (Photo source: Official Instagram handle @itskellymack)

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 Diehard fans of the early 2000s TV chronology may remember Kelley as Addy, a Hilltop Colony resident, in The Walking Dead Season 9. She is also widely remembered for her role as Penelope Jacobs in Chicago Med Season 8, a role that propelled her into TV fame. (Photo source: Official Instagram handle @itskellymack)

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Mack earned her degree in cinematography from Chapman University’s Dodge College of Film and Media Arts, balancing formal education with her creative pursuits. Beyond her on-screen and behind-the-camera achievements, she was a passionate storyteller who worked across multiple short and long format projects (Photo source: Official Instagram handle @itskellymack)