Beloved Chicago Med Actress Kelley Mack Passes Away at 35

On August 2, 2025, the entertainment world mourned the loss of beloved actress Kelley Mack, known for her role on the hit TV series Chicago Med. Mack's sister, Kathryn, announced the tragic news on the actress's Instagram page, sharing that Mack "passed peacefully" at the age of 35.

According to the post, Mack's mother, Kristen, and aunt, Karen, were present at the time of her passing. Kathryn expressed the family's profound grief, describing Mack as a "bright, fervent light" that has now transitioned to the beyond. The post also revealed that Mack's loved ones have been comforted by the appearance of butterflies, which they believe are a sign of her continued presence.

Mack's online obituary revealed that the actress had been battling glioma, a type of brain cancer that affects the central nervous system. Despite her courageous fight, the disease ultimately claimed her life. A celebration of Mack's life is scheduled for August 16 in Ohio, with a remembrance event also planned in Los Angeles at a later date.