Crowley (Mark Sheppard) becomes a major antagonist, and the season ends with the angels falling from heaven. Season 9: The Fallen Angels
: Introduction of recurring allies Ellen, Jo, and Ash. Supernatural all seasons 1- 2- 3- 4- 5- 6- 7- 8- 9
The season deepens the mythology by revealing that Azazel has been visiting special children—infants whose mothers he killed—and giving them psychic powers. Sam is one of these children, and his abilities (premonitions, telekinesis) grow stronger. The story introduces other "special children," including a powerful psychic named Ava, and sets up a final showdown at a ghost town where Azazel forces the remaining children to fight to the death. The finale, "All Hell Breaks Loose," is a turning point: Azazel kills Sam, leading Dean to sell his own soul to bring Sam back. Sam then uses his powers to kill Azazel, but the victory comes at a terrible cost. As a parting gift, Azazel opens a massive gate to Hell, unleashing hundreds of demons upon the world. Crowley (Mark Sheppard) becomes a major antagonist, and
Following the shattering of the wall in Sam's mind, the brothers face a new, ancient threat: The Leviathans, released by Castiel when he absorbed too many souls. Sam is one of these children, and his
Key characters introduced in Season 3 include: