The Walking Dead actress Kelley Mack has died at the age of 33.
Mack (real name: Kelley Lynne Klebenow) passed away on August 2 following a battle with cancer, her family announced on Instagram on Tuesday.
Mack had been stricken with glioma of the central nervous system, according to a statement her family shared on CaringBridge.
The rising star’s most prominent role during her lifetime was as Addy on The Walking Dead’s ninth season, which aired from 2018 to 2019.
Mack’s family noted that she would be honored at a celebration of life ceremony in Glendale, Ohio, on August 16.
‘It is with indelible sadness that we are announcing the passing of our dear Kelley,’ her family wrote in a post shared to her Instagram account. ‘Such a bright, fervent light has transitioned to the beyond, where we all eventually must go.

The Walking Dead actress Kelley Mack has died at the age of 33. Mack passed away on August 2 following a battle with cancer, her family announced on Instagram on Tuesday

Mack (R) scored her most prominent role during her lifetime as Addy on The Walking Dead’s ninth season, which aired from 2018 to 2019; pictured with (L–R) Jackson Pace and Joe Ando-Hirsch

‘It is with indelible sadness that we are announcing the passing of our dear Kelley,’ her family wrote in a post shared to her Instagram account. ‘Such a bright, fervent light has transitioned to the beyond, where we all eventually must go’; pictured in 2021 in Chicago
‘Kelley passed peacefully on Saturday evening with her loving mother Kristen and steadfast aunt Karen present,’ they continued. ‘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.’
The statement concluded with a reminder that Mack ‘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 f***ing proud of her.’
In January, Mack revealed on Instagram that she had first noticed symptoms of what was later diagnosed as a rare form of cancer in September 2024.

A statement posted to Mack’s Instagram page and penned by her sister said she died on Saturday with her ‘mother Kristen and steadfast aunt Karen present’; seen in October 2021 in Chicago