Kelley Mack, the actress who brought Addy to life in Season 9 of The Walking Dead, has died at the age of 33. Born Kelley Klebenow, Mack “passed away peacefully” in her hometown of Cincinnati on Saturday after battling glioma of the central nervous system, according to a statement posted on CaringBridge. Glioma is a type of tumor that affects the brain or spinal cord. … Continue reading ‘The Walking Dead’ Star Kelley Mack Passes Away!!