The brilliant mind behind 'Supernatural' has provided the answer to one of the drama's longest-running conundrums.

The Winchesters have a new ally, but who exactly is she? Supernatural's Sam and Dean would quickly gank half the cast of The Vampire Diaries if the two series were to ever crossover, but when Elizabeth Blackmore ditches her Valerie Tulle persona, she will become the Winchesters' ally.

Supernatural's Chuck is back in the picture, but for how long? Supernatural is serving up a double dose of Chuck. The writer/prophet/potential deity dropped off the radar when the Winchester bros.

Will Cas ever wrest control back from Lucifer? Misha Collins dishes on the angel's next move. Lucifer hasn't heard the last of Supernatural's Castiel.