Actress Kelley Mack, known for her appearance in post-apocalyptic zombie drama “The Walking Dead,” has died. She was 33.

Mack, who was born Kelley Klebenow, “passed away peacefully” in her hometown of Cincinnati on Saturday after battling glioma of the central nervous system, according to a statement posted on the social networking site CaringBridge. A glioma is a type of tumor that affects the brain or spinal cord.

“It is with indelible sadness that we are announcing the passing of our dear Kelley. Such a bright, fervent light has transitioned to the beyond, where we all eventually must go,” read a post on Mack’s Instagram on Tuesday alongside a photo of the actress.

Actress Kelley Mack on the red carper for "Broadcast Signal Intrusion" during the 57th Chicago International Film Festiv

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