supernatural is an american horror, drama, fantasy, fiction tv series created by eric kripke. it first aired on september 13, 2005 on the wb and now it is part of the cw series. the show stars jared padalecki as sam winchester and jensen ackles as dean winchester. the show follows the two brothers (sam and dean) as they hunt demons and other figures of the paranormal, but not bigfoot and aliens. the series is produced by the warner bros. company with the help of wonderland sound and vision. the current executive producers are eric kripke and mcg, who also directs, and robert singer. the fourth producer, kim manners died of cancer in the production of the fourth season.