The Winchesters season 1 revealed that Dean Winchester made a surprise cameo in the show by giving John Winchester a letter from his father, indicating that he somehow traveled back in time to set off the events of the series. Fans took to Twitter to express their excitement over this revelation. As a producer and narrator of The Winchesters, Jensen Ackles has always been involved in the show, but this direct involvement in the story raises questions about his role in the series going forward. While an explanation for how Dean returned is unclear, it's likely that he traveled through supernatural means rather than appearing as a spirit after his death in Supernatural's finale.
