Chuck Shurley

Chuck Shurley was a writer and Prophet of the Lord, who published numerous novels detailing the lives of Sam and Dean Winchester (with each novel recounting approx. one episode of the TV show.) He was inspired to write by visions he couldn't control-- extremely unpleasant visions that left him with terrible headaches, leading him to drink. The series itself had only had mild success, and he lost his publisher after he wrote that Dean Winchester went to Hell, but it had a rabid following who keep the series alive in chat rooms and arranged conventions. Before meeting them, he was unaware that Sam and Dean were real until they sought him out; his books contain details that even Sam and Dean don't know.

Due to his status as a prophet, he is protected personally by the archangel Raphael, who is tasked with defending him from any possible threat.

In Swan Song, after completing the final chapter in the story of the Winchester brothers' quest to avert the Apocalypse, Chuck smiles and vanishes- this is interpreted mean that he himself was God. Or at least as told by Rob Benedict in an interview. Where he says that he got a call from the shows producer, asking him how to felt to be god.

Season 4
Chuck is the author of the not so popular series "Supernatural". Sam and Dean discover him when they are assumed to be LARPing (Live Action Role Playing), and discover that the series includes every detail of their lives up to when Dean goes to Hell. They then find out that Chuck is writing his next book and go to see him- when they introduce themselves as Sam and Dean, Chuck shuts the door on them. The Winchesters demand how Chuck knows about their lives, eventually convincing him when they tell him their last names, something he never told anyone. Chuck then begins to apologize for what they've been though, believing himself to be a god who forced those things to happen to them; Dean and Sam eventually convince him otherwise, but are still unsure on how Chuck is tuned in to their lives. Chuck reveals that he had actually never stopped writing and just wrote himself into the story, and after getting a vision of Sam and Lillith, together, he calls the Winchesters and gives them the script of his latest unpublished book, which describes what he has seen of the upcoming Apocolypse.

Later, Sam calls Chuck to the motel to see if he knows about the demon blood, which Chuck confirms, telling Sam that the story looks like everything will rest on Sam's shoulders. After Dean's failed attempts to stop Chuck's story, he confronts Chuck about it, and ends up threatening him. Castiel appears, stopping him, and tells Dean that Chuck is a prophet of the Lord- Chuck admits to dreaming about it, but hadn't thought it was real. Later Castiel reveals to Dean that all prophets have archangels tied to them, giving Dean the idea of bringing Chuck to their motel room to stop Lillith and Sam; when he does, Chuck's archangel descends to protect him, forcing Lillith to flee. After Sam and Dean leave, Chuck has a vision which he rushes to tell the boys but is stopped by Zachariah.

In Lucifer Rising, Chuck finishes his manupage of "Supernatural-Lucifer Rising", and is seen ordering some girls for the night on the phone. He hangs up when he sees Castiel and Dean popping into his house, and is shocked, as he hadn't forseen what was happening. Dean looks over the story for Sam's location and discovers he's at St. Mary's Convent; Chuck tells them this is not whats supposed to happen and is told they're making it up as they go. Raphael then arrives, forcing Castiel to send Dean alone to stop Sam; as Castiel waits for the archangel to appear, Chuck puts his hand on Castiel's shoulder.

Season 5
In "Sympathy for the Devil", he is seen when Dean and Sam go to Chuck's house to find Castiel. When they arrive Chuck attacks Sam with a plunger; he is amazed to see that Sam is alright, as in his last vision, Sam went "full on Vader" and his eyes turned black like a demon. Dean then asks Chuck where Castiel is, and the prophet tells them that the archangel destroyed him. While Dean and Sam are talking, Chuck interrupts them saying that he can hear the angels talk, and Zachariah and two other angels then teleport inside Chuck's home. Zachariah attempts to get Dean to come with them after explaining that they need to strike now before Lucifer finds his vessel, but Dean refuses and banishes the three angels using a blood seal. Later, Chuck is seen speaking with Becky Rosen through a video web chat. He tells her that everything in his books are real and that he needs her to give Dean and Sam a message since he is being watched. When Becky finds the brothers, she tells them that Chuck's message is that he had a vision that Michael's sword is on Earth and that the angels lost it. Sam asks if Chuck knew where it was, but Becky says it's in a castle on top of a hill made up of 42 dogs, which made no sense to them. Dean later figured out that Chuck was referring to an business card his father had for Castle Storage in upstate New York on 42 Rover Hill.

Chuck also appears in The End, where he is a part of Future Dean's army. He first appears asking past Dean about supplies, and then later when future and past Dean are in the same room dicussing plans. As the group heads out to fight againist Lucifer, Chuck tells past Dean to horde toliet paper, as it'll come in handy when companies stop producing it.

In The Real Ghostbusters, Becky steals his phone to trick Sam and Dean into coming to a "Supernatural" convention. There Chuck is a guest speaker and answers question about his novel, much to Sam and Dean's displeasure. Chuck is also crushing on Becky, who at the moment is crushing on Sam. Chuck also reveals at the convention that "Supernatural" will start publishing again. Sam and Dean try talk Chuck out of it, and Chuck responds by telling them he makes his living by writing these stories. Then it just so happens that the hotel is really haunted and Sam and Dean work to get rid of it; while Sam and Dean work, Chuck distracts everyone in the main hall from the fact there is really ghosts in the hotel. When the hotel manager get annoyed, he attempts to leave and breaks the line of salt, forcing Chuck to use the mic stand to disperse the ghost. This inpresses Becky and later on in the episode she 'breaks it off' with Sam.

{C}In Swan Song, Chuck narrates the story of the Winchester's impala; it's history, and what it meant to Sam and Dean versus anyone else. Dean calls Chuck for the location of the final showdown of Lucifer and Michael, and despite the angels not wanting Chuck to see it, he tells Dean it'll be at noon in Stull Cemetery near Lawrence, Kansas. At the end of the episode, Chuck finishes his story and vanishes from his chair in a haze of white light. The beard and change of clothing suggests that he may be god.

Powers

 * Precognition
 * Immunity (through angelic protection)
 * Clairsentience

Season 4

 * "The Monster at the End of This Book"
 * "Lucifer Rising"

Season 5

 * "Sympathy for the Devil"
 * "The End"
 * "The Real Ghostbusters"
 * "Swan Song"

Trivia

 * He answered Dean's phone call in "Swan Song" by asking if it was "Mistress Magda", a possible reference to Saint Mary Magdalene.
 * He writes under the pen name "Carver Edlund," a combination of the names of two Supernatural writers.
 * Though he vanishes at the end of Season 5, he is briefly mentioned in Season 7. Becky claims that Chuck broke up with her, freeing her to further pursue Sam. This happened in season 5, as mentioned by Chuck when answering a call from Dean. This was due to the fact that Dean inquires as to why he initially assumed a "Mistress Magda" was phoning instead of Becky.
 * Rob Benedict and Eric Kripke have both confirmed that Chuck was indeed God