The Winchesters, the Supernatural prequel which recently premiered on The CW, follows a young John Winchester (Drake Rodger) and Mary Campbell (Meg Donnelly) as fresh-faced adults.

In addition to John and Mary, The Winchesters has now cast another role, that of Millie Winchester, Sam and Dean’s paternal grandmother, a.k.a. John Winchester’s mother.

The series will debut on Tuesday, October 11th at 8/7c and will star Drake Rodger and Meg Donnelly as John and Mary Winchester with the series set to dive into their origin story as narrated by ...