@IGN News...The Walking Dead étoile, star Jeffrey Dean morgan is officially returning to Supernatural for its milestone 300th episode after plus than a decade away.
Sam (Jared Padalecki), Dean (Jensen Ackles) and Castiel (Misha Collins) are transported into the animated world of Scooby Doo where they rejoindre forces with the Scooby gang to solve a ghostly mystery.
