Kelley Mack, a film producer and actress who appeared in "The Walking Dead" and "Chicago Med," has died. She was 33.
Born Kelley Lynne Klebenow, the Chapman University graduate died Aug. 2 in her hometown of Cincinnati following a battle with glioma of the central nervous system. Her agent, Julie Smith, confirmed the news to USA TODAY on Aug. 5.
According to the National Cancer Institute, gliomas are groups of tumors formed from abnormal glial cells, which "support and protect the brain's nerve cells" and are found in the brain and spinal cord. They are "the most common type of malignant primary brain tumor in adults," per the NCI.
Though Mack also did work on commercials and short films, her biggest roles saw her on screen on Season 8 of "Chicago Med" as Penelope Jacobs. She also played Addy in Season 9 of "The Walking Dead."
Mack's sister, Kathryn Klebenow, shared news of her death on her Instagram, writing in the caption that "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."
