Supernatural: 10 Best Characters Who Appeared After Season One

10. Chuck Shurley

Introduced in Season Four, Chuck Shurley was originally portrayed as a writer and prophet, who chronicled Sam and Dean's adventures through his Supernatural series of "fiction" books, under the pseudonym of Carver Edlund. He was every bit the vision of a shabby, unkempt author, who was thrown for a loop when he was confronted by Sam and Dean, whom he'd previously believed to be products of his imagination. Chuck would pop up several times in the build-up to the first Apocalypse at the end of Season Five, before literally vanishing into thin air and giving fans cause to believe there was more to the scribe than just being a prophet.

The Supernatural books would continue to pop up as a plot point sporadically and Chuck would make a cameo in Season Ten, but it wasn't until the tail end of Season Eleven that his true nature was revealed. It turned out that Chuck was actually God and he'd just been posing as a prophet so he could get front row seats to the stories he'd spun. At first seeming to be a benevolent force of creation, Chuck's darker nature was revealed at the end of Season Fourteen, setting him up as the ultimate Big Bad for the show's final season.

Not only did Chuck prove to be one of the most important characters in the show's mythos, but he was a genuinely fun and likeable character. You know, until he started wiping out universes and unleashing literal Hell on Earth.