Kelley Mack died on the age of 33 in August 2025 after battling a uncommon type of mind most cancers. Her performing profession had simply gotten traction, together with her efficiency in The Strolling Useless being praised by followers. Mack’s multi-talented nature led her to pursue completely different initiatives, and she or he promoted her upcoming movie work over the past months of her life.
Under, Hollywood Life explains the form of most cancers Mack was dwelling with and what a glioma is.
Who Was Kelley Mack?
Mack was an actress, producer and voiceover artist. Per her IMDb profile, the Ohio native was finest recognized for her performances in Broadcast Sign Intrusion, season 8 of Chicago Med and season 9 of The Strolling Useless.
Who Did Kelley Mack Play in The Strolling Useless?
Mack performed the character Addy in season 9 of The Strolling Useless.

What Type of Most cancers Did Kelley Mack Have?
Mack revealed in January 2025 that she was identified with a uncommon type of astrocytoma referred to as diffuse midline glioma. Astrocytoma is a mind tumor, and diffuse midline glioma is a tumor that begins in both the mind or the spinal twine, per the Nationwide Most cancers Institute.
“In September, I moved into a brand new house with my boyfriend, Logan,” the actress indicated in an Instagram caption on the time. “For a month after that, I had persistent decrease again ache and thought I slipped a disc. Just a few weeks later, I had neuropathic itching in my proper quad. After which, the taking pictures pains in my legs and again started, which resulted in me having to sleep in a recliner for a month as a result of laying down was too painful. On Thanksgiving Eve, I had emergency MRIs finished on the hospital, which revealed an irregular mass in my spinal twine.”
Mack stated that after her biopsy surgical procedure on her spinal twine, she “misplaced using [her] proper leg and most of [her] left leg,” so she had to make use of a walker and wheelchair to maneuver.
Regardless of the mentally and bodily strenuous ordeal, Mack maintained a constructive angle about her most cancers journey and knowledgeable followers that her performing profession could be “considerably paused for a bit of” throughout her radiator therapy in Cincinnati, Ohio. However, the Chicago Med alum famous that she had initiatives “popping out quickly” and concluded that she was “decided and [knew] that this [cancer battle] will finally be a brief chapter in [her] lengthy ebook.”
What Is a Central Nervous System Glioma?
A glioma is a malignant tumor that develops after glial cells develop too quick. Glial cells assist the central nervous system operate, in line with the Cleveland Clinic.
There are three varieties of gliomas: astrocytomas, ependymomas and oligodendrogliomas. Astrocytomas can embody glioblastomas and diffuse intrinsic pontine gliomas (DIPGs), per the Cleveland Clinic. Mack was identified with an astrocytoma referred to as diffuse midline glioma.
How Did Kelley Mack Die?
Mack died after her most cancers battle, although an actual reason for dying has not been disclosed on the time of publication.