Supernatural 13×05 Sneak Peek “Advanced Thanatology” Season 13 Episode 5 Sneak Peek

Supernatural 13×05 “Advanced Thanatology” Season 13 Episode 5 Sneak Peek – While working on a case involving the ghost of a demented doctor, Sam (Jared Padalecki) and Dean (Jensen Ackles) get assistance from an unexpected source – Billie (guest star Lisa Berry). Castiel (Misha Collins) finds his way back to the Winchesters. John Showalter directed the episode written by Steve Yockey (#1305). Original airdate 11/9/2017.