United Kingdom, Aug. 6 -- Kelley Mack has died at the age of 33.

The Walking Dead actress - whose real name was Kelly Klebenow - passed away on 2 August after battling glioma of the central nervous system, a cancerous tumour, her devastated family have involved.

Her sister posted on Kelley's Instagram account: "It is with indelible sadness that we are announcing the passing of our dear Kelley. 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 [butterfly and heart emojis]. She will be missed by so man...