Overview

• Her sister Kathryn confirmed in an Instagram post that Mack passed peacefully on August 2 in Cincinnati with her mother and aunt at her side.
• Mack’s death was caused by complications from a central nervous system glioma, a tumor she had publicly documented while undergoing treatment.
• The Ohio-born actress was best known for portraying Addy in The Walking Dead’s ninth season and appeared in Chicago Med, 9-1-1, films and national commercials.
• Throughout her illness, she provided candid updates on CaringBridge and Instagram, thanking supporters after milestones such as completing proton radiotherapy in March.
• A public memorial is set for August 16 at the Glendale Lyceum in Ohio, with a subsequent event planned in Los Angeles for friends and colleagues.