Supernatural welcomes back guest star Felicia Day as Charlie Bradbury in episode 18 of season 10, Book of the Damned, as the Winchesters continue on their quest to remove Dean’s Mark of Cain. Meanwhile, Castiel and Metatron (guest star Curtis Armstrong) try to find Castiel’s grace.
Can Dean be saved? Check out the trailer below!
https://www.youtube.com/watch?v=uZc0c2pfWDM