Supernatural: The Complete Series Clip Looks Back on Casting Jared Padalecki and Jensen Ackles (Exclusive) The CW has provided ComicBook.com with an exclusive clip from tomorrow's Supernatural: The Complete Series box set, which includes all 15 seasons on Blu-ray, plus a booklet looking back at the series and a DVD that features some bonus features exclusive to the Complete Series box. In this clip, showrunner Andrew Dabb, series creator Eric Kripke, and others look back at the role that leads Jared Padalecki and Jensen Ackles played in setting the tone for the series. In the clip, the producers discuss how, early in the series, Kripke pulled the actors aside to tell them that they had to set the tone for the rest of the cast, since the show rested on their shoulders.