Walking Dead Actress Kelley Mack Dies At 33

Actor Kelley Mack, champion known for playing Addy connected "The Walking Dead," died complete nan weekend, her family announced.

She was 33.

"Such a bright, fervent ray has transitioned to nan beyond, wherever we each yet must go," her sister Kathryn wrote connected Mack’s Instagram connected Tuesday.

Mack, calved Kelley Lynne Klebenow, passed distant "peacefully" connected Saturday evening, surrounded by her mother Kristen and aunt Karen aft "battling glioma of nan cardinal tense system," nan family said successful a statement.

The prima announced successful January that she was diagnosed pinch diffuse midline glioma, an highly uncommon type of astrocytoma cancer. Diffuse midline gliomas are cardinal tense strategy tumors, meaning they statesman successful nan encephalon aliases spinal cord. It’s treated by surgery, radiation therapy, and chemotherapy, according to the National Cancer Institute.

In an Instagram post, Mack explained that precocious past twelvemonth she felt "persistent little backmost symptom and thought I slipped a disc." Weeks later, she knowledgeable "neuropathic itching successful my correct quad" followed by "shooting pains successful my legs and back," that forced her to slumber successful a recliner for a period because lying down "was excessively painful."

Finally, connected Thanksgiving Eve, she wrote that she had emergency MRIs done astatine a hospital, “which revealed an abnormal wide successful my spinal cord.”

At nan time, she was receiving radiation curen successful Cincinnati, wherever her family lives.

"I americium very grateful to person specified a supportive and loving family and boyfriend, who person been pinch maine each 2nd of this process. It has been a very affectional and challenging time, genuinely testing my intelligence fortitude, faith, and beingness strength," Mack wrote. "This acquisition has brought maine person to God, and I americium leaning connected him and spot his scheme for me."

In March, she shared a video connected Instagram of herself walking up nan stairs, writing: "I’ve been up and down these stairs now 2x successful nan past fewer days. It’s a large woody for me."

Mack's sister told her followers successful nan Tuesday post: "She would want you each to cognize really overmuch she loves you."

"And arsenic her sister, I want you each to cognize really brave that reliable SOB was, particularly erstwhile she decided to make nan leap to beryllium reunited pinch God. I’m truthful f***ing proud of her," she continued.

The Tuesday tribute station said Mack has already visited her loved ones "in nan shape of various butterflies."

"She will beryllium missed by truthful galore to depths that words cannot express," her sister wrote.

The family connection described Mack arsenic a vibrant, imaginative personification whose "love for storytelling blossomed astatine a young age, erstwhile she received a mini video camera arsenic a day gift."

She went connected to enactment successful commercials arsenic a child, past connected to nan large screen. She besides worked successful commercialized acting, voice-overs and producing.

Mack appeared successful play 9 of "The Walking Dead" from 2018 to 2019 arsenic Addy, arsenic good arsenic "Chicago Med" successful 2022 and an section of "9-1-1" successful 2019, according to her IMDb profile. Recently, she appeared successful nan 2024 films "Mr. Manhattan" and "Delicate Arch." She had been promoting nan 2025 movie "Universal connected her Instagram successful caller months.

"Kelley was known for her warmth, creativity, and unwavering support for those astir her. She cherished clip pinch her family and friends, uncovering joyousness successful collaboration and storytelling. Her infectious enthusiasm and dedication to her activity inspired countless others successful nan manufacture and beyond," nan connection said.

A ceremony of life ceremonial is scheduled successful Ohio for Aug. 16.

Mack is survived by her mother and father, Kristen and Lindsay Klebenow; her sister, Kathryn; her brother, Parker; her grandma and grandfather, Lois and Larry Klebenow; and her boyfriend, Logan Lanier.