Real Name: Samuel Winchester
Date of Birth: May 2, 1983
Family: John Winchester (father, deceased), Mary Winchester (mother, deceased), Dean Winchester (older brother), Adam Milligan (younger half-brother, deceased)
Powers: Precognition, Telekinesis, Exorcism
Nursery Fire: Yes
Actors: Jared Padalecki (adult Sam), Alex Ferris (1.18), Colin Ford (3.08, 4.13, 4.21)
Sam's police record appeared in 1.15 The Benders as follows:
Age 6 months: Sam is visited in his nursery by Azazel, who drips demon blood into his mouth. When Mary interrupts him, Azazel kills her, pinning her to the ceiling and setting the house on fire. John saves Sam and Dean carries him from their burning home.
Age 6: Left in Dean’s care in a motel room in Fort Douglas, Wisconsin while John is on a hunt. While a bored Dean leaves briefly, Sam is attacked by a shtriga, but is rescued by John. 1.18 Something Wicked
Age 8: Dean and Sam are again on their own in a motel in Broken Bow, Nebraska on Christmas Eve. Until this age Sam believes his mother died in a car accident, and doesn’t know John is a hunter. On finding John’s Journal, Sam confronts Dean, who confirms that supernatural beings exists, that one killed their mother and that their father hunts them. 3.08 A Very Supernatural Christmas.
Age 12: Sam wins a Division Championship Soccer trophy, which he later finds in John's Lock-up in 3.03 Bad Day At Black Rock
Age 13: In summer 1997, Sam, Dean and John hunt a werewolf. 4.13 After School Special.
around Age 15: Sam was a Mathlete in high school, as remembered by Travis in 4.04 Metamorphosis.
Age 18/19: Sam leaves his family to study at Stanford. See Canon Discrepancies
Age 20: Sam starts dating Jessica Moore. (He tells Dean in 1.13 Route 666 he had lied to Jessica for ‘a year and a half’ about what their family did).
Sam is 22 and about to enter Law School, when Dean turns up unexpectedly at his apartment in Palo Alto. The two have not spoken for some time (see Canon Discrepancies for how long). But their father is missing, and Dean asks Sam to help find him. After a weekend of searching, Sam returns to the apartment he shares with Jessica only to find that she has been killed in the same manner as his mother.
This spurs Sam to embark on a journey to find their missing father and get vengeance on the demon. While John Winchester is missing, he occasionally contacts the boys to leave them new missions to complete. The boys fend off mystical creatures such as the Woman in White, the wendigo, folklore's Bloody Mary, and shapeshifters. Through these missions, Sam begins experiencing episodes of precognition and once displays telekinesis.
The season finale concludes with Sam, Dean, and their father John escaping from a clash with The Demon in Salvation, Iowa. While Sam is driving the Winchesters to a hospital after Dean and John were hurt, a truck crashes into them, causing massive damage to Dean's Impala with the Winchesters inside.
In the beginning of the second season, Sam takes a more active role in the hunting. He tells Dean that this is what their dad would have wanted him to do. The Demon's plans for Sam are still unknown. Dean and Sam meet with three people that John once knew: Ellen Harvelle, her daughter Jo, and their computer genius associate Ash. They assist the brothers in their hunting. In the episode "Simon Said", Sam displays immunity to Andy Gallagher's power of mind control. He is also immune to the demonic sulfur virus in the episode "Croatoan".
Since "Hunted", Sam has learned what his father told Dean moments before his death: that the Demon plans to cause Sam to become evil and use him and "children like him" as soldiers in an upcoming war. Dean was told that if he could not save Sam, he would have to kill him. Sam is convinced that he must save as many people as he can in order to change his destiny, as he drunkenly states in "Playthings".
In the episode "Born Under a Bad Sign", Sam is possessed by the same demon responsible for Meg's possession in Season 1. It becomes clear that if the time comes for Dean to shoot his brother, Dean would not be able to do so.
In the episode "What Is and What Should Never Be", Sam and Dean aren't close in the alternate reality created by a djinn. Neither Sam nor Dean had ever hunted, and Jessica is Sam's fiancee.
The first episode of the season finale of season two, All Hell Breaks Loose, Part 1, Sam is trapped in a haunted abandoned town in South Dakota with "Others" of his kind. It was revealed that there is demon's blood in Sam and his mother Mary Winchester knew who the demon was, much to Sam's surprise. He is stabbed by a soldier named Jake and dies in his older brother's arms just as he and fellow hunter Bobby arrive to the rescue. In the second episode of the season finale, Dean made a deal with a "Crossroads Demon" to deliver himself to Hell in one year, in exchange for Sam's life. Sam doesn't know of what happened while he was dead, and is in fact unaware he was ever dead in the first place. In the following battle to prevent Jake and the "Yellow-Eyed Demon" from unleashing a demonic army, Sam shoots and kills Jake, unloading over ten bullets into his body. This is the first time Sam kills a man, or someone that isn't a demon, and he seems to show no remorse. The Yellow-Eyed-Demon questions Dean if he is sure that what he brought back 100% pure Sam, but this is never elaborated on. Sam figures out that he was dead, and tells Dean he'll get him out of the deal he made, no matter what.
Throughout Season 3 Sam's quest is to find the loophole in Dean's contract with the Crossroads Demon in order to save Dean from going to Hell. For a while, Sam is quietly and fondly exasperated about Dean's hedonistic tendencies, but Dean's borderline suicidal behavior is bothering him a lot. Sam tries everything in his power to save Dean, he even goes as far as to summon the Crossroad Demon and shoot her with The Colt.
He receives unlikely help from Ruby, a demon who reveals that not everybody in Hell is opposed to Sam, that in fact, there a demons who are very much behind Sam. Sam also learns, that he holds dubious fame as the "boy-king" or rather "The Anti-Christ", something that brings fellow hunter Gordon Walker to pick up his trail and hunt him down. In the episode 3.07 Fresh Blood Sam kills Gordon using nothing but his own two hands and a wire.
A notable episode is 3.11 Mystery Spot, in which, after having lived through a groundhog-day like setting for over 100 times in which Dean is killed and Sam can't save him, Sam has to fend for his own with Dean in Hell. The episode shows what will become of Sam when Dean goes to Hell - namely a single-minded, dead-inside hull of a person.
To save Dean, Sam even goes as far as to consider using a questionable scientific method which helps a homicidal doctor, Doc Benton to stay "alive" in a Frankenstein-like body.
Ruby, who claims to know a way to help Sam save Dean - but who revealed to Dean that she was lying in episode 3.07 Fresh Blood - is trying throughout the season to get Sam to embrace his demonic powers.
In the season finale, 3.16 No Rest For The Wicked, Sam still hasn't found a way to save Dean, and has to watch, helplessly and powerless, Lilith sic her Hellhounds on Dean and tear him to pieces.
Throughout the course of Season 4, Sam's activities while Dean was in Hell are slowly revealed. Sam was in despair after Dean's death, and tried to make a deal with a Crossroads Demon, but no demon would deal with him. He drinks to excess and acts recklessly—he has a death wish—until Ruby makes contact with him and begins to teach him how to use his demon-given powers.
Ruby possesses the body of a comatose woman whose soul has already fled. In a short time, Sam and Ruby become lovers, and Ruby is able to shake Sam out of his depression to some extent. Together, they hunt demons and Sam exorcises them and sends them back to Hell using his powers. Sam is overwhelmed when Dean returns from Hell, but the two quickly begin fighting. Castiel informs Dean of Sam's use of his powers, leading up to a minor fallout between the brothers, as Dean tries to get him to stop using them and stop hanging out with Ruby.
Sam, who is more religious than Dean, is delighted to find that angels are helping them, but is severely disillusioned in "It's the Great Pumpkin, Sam Winchester," when he finally meets Castiel and another angel, Uriel, and the angels attempt to destroy an entire town. Also a shock is that Uriel treats Sam with complete disgust, threatening to kill him as soon as Sam is no longer useful. Sam promises Dean to stop using his abilities, but quickly breaks the promise.
Meanwhile, Dean lies to Sam, claiming he remembers nothing of Hell. But in "Wishful Thinking," he reveals that he does remember, but does not want to tell Sam. Finally, in "Heaven and Hell," Dean reveals the awful truth about Hell to Sam—the four months he was there were like forty years, and Dean was tortured for three-quarters of that time under the ministrations of the demon, Alastair, until he finally agreed to himself become a torturer. He confesses he wished he couldn't feel at all, because thinking of his past actions in Hell is tormenting him.
In "Criss Angel is a Douchebag," Sam had a short-lived fight with Ruby about his powers. She argued that he shouldn't be going on these meaningless hunts and go after Lilith. Eventually he relents and is seen leaving with Ruby. When she asks him what made him change his mind, he says that he doesn't want to be hunting when he's old.
Season 4 shows a colder, less emotional Sam. He blatantly lies to Dean and to the spirit of a young boy, promising him that he can be saved from the Reaper who is there to take him. Sam has also become much more accepting of collateral damage and incidental loss of human life.
TRIVIA ABOUT SAM
Samuel Winchester was born second son to John and Mary Winchester. Sam is different from his four-years older brother, Dean, in that he is rational, sensitive, and seemingly more concerned with living a "normal life" than his brother. In spite of this, it is apparent that he would do anything for Dean. He also rebelled against his father's attempts to raise him as a demon hunter and enrolled in Stanford University. When Dean came to ask Sam for his help in the first episode, the viewers are introduced to Jessica, Sam's girlfriend. It is apparent that Sam was somewhat popular, despite no one knowing what it is his family really does. His brother, Dean, is the only one allowed to call him by his nickname, Sammy.
Sam uses a stainless steel Taurus PT-92 9mm pistol (similar to the Beretta M92 on which Taurus based this gun) with mother-of-pearl grips, and uses a pistol grip 4-shelled 12 gauge pump shotgun loaded with rock salt.
He owns what appears to be a Dell Precision M65 laptop, which he uses to gather information for hunts. The first time he uses the laptop is in the second episode "Wendigo" where he plays a video message. The laptop may not belong to him, as his possessions were destroyed in a fire in the previous episode "Pilot". In that same episode, his brother Dean references using computer software which may indicate he is the actual owner of the laptop.
Sam also appears to own a Verizon-branded Motorola Q which has on at least one occasion been used to visually track unseen ghosts. (As seen in "Hollywood Babylon.")
POWERS & ABILITIES
Sam has been shown to possess talents such as telekinesis and precognitive abilities (manifesting as visions). As the series progressed, Sam has learned to further develop his powers allowing him to exorcise demons from their human vessels and eventually to kill demons.
Sam's premonitions began "about six months" before Jessica's death (1.05). Initially they only occur when he's sleeping (as dreams), but by 1.14 they occur when Sam is awake. Sam cannot control when the premonitions occur or what they're about, and they are often accompanied by intense headaches. Sam and Dean theorize that Sam only has premonitions when they are somehow related to Azazel. This is likely true, for Sam ceases to experience visions after the demon's death in 2.22, which also suggests that his visions were a result of some sort of link between himself and Azazel.
Occurrences (in chronological order)
Sam first displays telekinesis in 1.14 during a moment of desperation, allowing him to move a heavy cabinet blocking his path to Dean. Sam tried to repeat this ability afterward but was unable to do so. In fact, his telekinesis did not manifest again until after he began training with Ruby and drinking her blood. By the time he wields his power again, Sam is shown to be highly adept at hurling a demon as powerful as Alastair across a graveyard with little effort. He can also maintain a grip on demons, preventing them from moving or using their powers.
Sam can force a demon to leave its host through sheer force of will. Initially, using this ability caused Sam a great deal of stress and would often result in severe headaches and nosebleeds, but with time and practice he was able to exorcise a demon without these side-effects. Once removed, the demon "smoke" falls to the ground and burns a black circle as it descends back to Hell. Unless the host is already dead, the vessel will survive this process (though he admitted to unintentionally killing a few during training).
Sam has immunities to demonic attacks that steadily expand over time. At first, Sam was vulnerable to all forms of demon powers, being easily overpowered by telekinesis from both Azazel and lesser demons. However, his first bout of immunity manifests after being exposed to the Croatoan virus. Sam proves immune, and is later able to survive Lilith's "light" without any harm. Though still susceptible to the telekinetic attacks of other demons (like Alastair, for example) and possession by the Meg!Demon, Sam eventually reaches a point where no demon can harm him so long as he's high on demon blood. To this end, Lilith is practically defenseless against Sam during their final confrontation.
Execution & Torture
When fueled by a certain amount of demon blood, Sam powers are strong enough to allow him to not only exorcise demons, but kill them too. Killing a demon creates the same light inside their body as when they're killed by the Colt or Ruby's knife. When killing Alastair, Sam was able to do so with ease, but Lilith required extreme concentration and will, the result of which drained him of all his powers upon completion. Sam is also capable of inflicting intense pain on any demon, which proves useful in torturing them for information for the agony is so great that Lilith's servant begged for death after just a few minutes of exposure.
Sensing the Supernatural
Sam has a sixth sense that allows him to detect impressions or a sense of supernatural presence. Sam describes this as a "vibe" (1.10).
2.01 In My Time Of Dying: Sam was able to sense Dean's spirit during a time of great stress.
Lucifer's True Vessel
Current consent: No (His consent in the future is yes, however this has yet to be so as of now)
Sam is revealed to be Lucifer's true vessel, for no other human can hold Lucifer's Angelic Energy for long and only serve as a temporary solution.
NOTABLE EPISODES ABOUT SAM
As one of the stars of the series Sam has appeared in all the episodes, abet briefly in some. However, most episodes are focused on either Sam or Dean.
Episodes that are clearly Sam-centered:
RELATIONSHIP WITH THE YELLOW-EYED DEMON
Sam: I mean, either telekinesis or premonitions, we both had abilities, you know? Maybe it was after us for some reason.
OTHER CLOSE ENCOUNTERS OF THE SUPERNATURAL KIND
Events in the series and prior to it as far as they are known are collected in the Timeline.