At the time of her death, the Ohio-born actor had been actively promoting the independent sci-fi feature "Universal," in ...

In January, Mack shared she had been diagnosed with diffused midline glioma, a rare type of astrocytoma cancer.

In January, Mack shared she had been diagnosed with diffused midline glioma, a rare type of astrocytoma cancer.

Kelley Mack, an actress who appeared on shows including “The Walking Dead,” “9-1-1,” and “Chicago Med” has died, according to ...