American actress, Kelley Mack, known for her roles in The Walking Dead and Chicago Med, is dead.
The 33-year-old Mack, born Kelley Klebenow, passed away on Saturday in her hometown of Cincinnati, Ohio.
Her death was confirmed in a statement posted on her official Instagram page, #itskelleymack, on Wednesday.
“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.
“Kelley passed peacefully on Saturday evening with her loving mother Kristen and steadfast aunt Karen present.
“Kelley has already come to many of her loved ones in the form of various butterflies.
“She will be missed by so many to depths that words cannot express.
“Kelley’s Caringbridge link in her bio includes the 2-page formal announcement with information on her upcoming life celebration in Ohio on August 16th.
“She would want you all to know how much she loves you.
“And as her sister, I want you all to know how brave that tough SOB was, especially when she decided to make the leap to be reunited with God. I’m so fucking proud of her,” the statement read.
Mack’s acting career began at a young age and flourished with appearances in high-profile television shows and commercials.
She gained recognition for her role as Addy in AMC’s The Walking Dead and later played Penelope Jacobs in NBC’s Chicago Med.
In addition to her on-screen performances, she also built a strong presence in voice-over work and featured in campaigns for major commercial brands.
In January 2025, Mack disclosed in an Instagram post that she had been diagnosed with diffuse midline glioma, “an extremely rare type of astrocytoma cancer,” after suffering from persistent back pain and leg issues.
“Due to the biopsy surgery on my spinal cord, I have lost the use of my right leg and most of my left leg, so I now get around with a walker and a wheelchair,” she wrote at the time.
A memorial service in her honour will be held on August 16 at the Glendale Lyceum in Glendale, Ohio.
A separate celebration of life is also planned in Los Angeles to pay tribute to her impact on the entertainment industry.
