Scott D. Pierce: Nobody thought ‘Supernatural’ would run for 15 years. Nobody.
(Photo courtesy of Robert Falconer/The CW) Jared Padalecki as Sam and Jensen Ackles as Dean in the final episode of "Supernatural," titled "Carry On."
(Photo courtesy of Robert Falconer/The CW) Jared Padalecki as Sam and Jensen Ackles as Dean in the final episode of "Supernatural," titled "Carry On."