Supernatural Seasons 1-5 | __exclusive__

The supporting cast is equally crucial. Castiel (Misha Collins), introduced in Season 4, is the perfect foil: an angel of the Lord who learns to rebel, teaching the Winchesters that blind obedience to Heaven is as evil as blind obedience to Hell. And then there is Bobby Singer (Jim Beaver), the surrogate father who actually listens, and the demon Meg (Nicki Aycox/Rachel Miner), a villain with sardonic wit.

“What’s dead should stay dead.”

The final episode of Season 5, "Swan Song," is widely considered the series finale by purists. Narrated by the fourth-wall-breaking trickster god Gabriel (posing as Chuck the Prophet), the episode strips away all the mythology. Supernatural Seasons 1-5