Skip to content

‘The Walking Dead’ star dead at 33 after battling illness

Kelly Mack was known for her role as Addy in Season 8 of "The Walking Dead" and acted in several films and appeared on TV shows.

Head and shoulders of actress Kelley Mack
Actress Kelley Mack arrives at the Los Angeles Friends + Family Premiere of Dark Sky Films and Queensbury Pictures’ “Broadcast Signal Intrusion” at iPic Theaters on October 19, 2021 in Los Angeles, California. Her death was announced Wednesday, Aug. 6, 2025. (Amanda Edwards – Getty Images)
PUBLISHED: | UPDATED:
Getting your Trinity Audio player ready...

By Brian Linder,

pennlive.com

Kelley Mack, known for her role as “Addy” in “The Walking Dead,” has died.

She was just 33-years-old.

Actress Kelley Mack arrives at the Los Angeles Friends + Family Premiere of Dark Sky Films and Queensbury Pictures' "Broadcast Signal Intrusion" at iPic Theaters on Oct. 19, 2021 in Los Angeles, California. (Photo by Amanda Edwards/Getty Images)
Actress Kelley Mack arrives at the Los Angeles Friends + Family Premiere of Dark Sky Films and Queensbury Pictures’ “Broadcast Signal Intrusion” at iPic Theaters on Oct. 19, 2021 in Los Angeles, California. (Photo by Amanda Edwards/Getty Images)

Mack’s family shared the news on her Instagram account Wednesday.

“It is with indelible sadness that we are announcing the passing of our dear Kelley,” the statement read. “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.”

The statement noted that her celebration of life will be held in Ohio on Aug. 16.

“She would want you all to know how much she loves you,” it read. “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 (expletive) proud of her.”

According to Parade, Mack announced in January that she was diagnosed with a rare form of cancer. Variety reported that her family said that cancer was glioma of the central nervous system.

Her character of “Addy” appeared in Season 9 of “The Walking Dead.” She also played “Penelope Jacobs” in Season 8 of “Chicago Med,” and on Fox’s “9-1-1.”

Her movie credits included playing “Alice” in “Broadcast Signal Intrusion,” and “Wilda” in “Delicate Arch.”

Gustavo Gomez, who played “Marco” in “The Walking Dead,” wrote, “This is heartbreaking. I feel so luck that our paths crossed. Your bright light will always shine on.”

©2025 Advance Local Media LLC. Visit pennlive.com. Distributed by Tribune Content Agency, LLC.

RevContent Feed