Castiel

Castiel is a main protagonist and an antagonist who appeared in Supernatural, he's only one who revived Dean who was been tortured in Hell.

He is played by Misha Collins

Episodes
Castiel, an angel of the Lord, was responsible for pulling Dean Winchester out of Hell, on God's command. It was his job to help prevent Lilith from breaking the 66 Seals that, once broken, would release Lucifer from his cage. Once Castiel learned that the Angels wished to free Lucifer, he defied his angelic brethren and died trying to help Dean prevent Sam Winchester from breaking the last seal.

After he was killed by Raphael, Castiel was resurrected by God and appointed as the Winchester brothers' protector to prevent them from becoming the vessels of Michael and Lucifer. When theApocalypse was averted, he was again resurrected with new powers. He then started a civil war in Heaven to prevent Raphael from restarting the Apocalypse. Thinking he couldn't be outsmarted by a demon, Castiel teamed up with Crowley to claim the souls of Purgatory. He ended up betraying Crowley and absorbed all the souls, resulting in his powers reaching the level that of a god, but at a high price: the powers that the evil souls granted him had warped Castiel's mind, causing him to proclaim himself as the new God.

Castiel later agreed to the advice of Dean to release the souls back into Purgatory. While seemingly successful, it turned out that the most powerful entities from Purgatory held on to Castiel, and overpowered him. When the Leviathans leave to take over new forms Castiel was presumed dead, but survived - apparently resurrected by God yet again. Dean later accidentally finds Castiel as an amnesiac healer called Emmanuel. After taking on Sam's madness and experience in Hell in order to save the Winchester and redeem himself for what he did to Sam, Castiel had become insane. However, his sanity is returned to an extent when a signal was sent to all angels upon the discovery of the Word of Godand the appointment of a new prophet. He then aides the Winchester brothers against Dick Roman, only to be transported to Purgatorywith Dean.

While Dean returns, Castiel is not with him. While his condition is initially unknown, it's revealed that he spent most of his time running from Leviathans and that he didn't escape Purgatory with Dean as he had planned to stay as a form of penance. However, he was eventually released from the monster realm by an incursion of angels under Naomi's orders and would rejoin the Winchester brothers and tried to become a hunter himself.

As an angel, seeing Castiel's true form will result in blindness or even death, as the appearance of his natural visage is so overwhelming that it is capable of burning human or demon eyes from their sockets (as seen in Lazarus Rising), as he said, "My true form. It can be overwhelming to humans. So can my real voice." However, Castiel stated certain, "special people" are able to tolerate his true appearance and voice. Although his true form has never been seen, it is known that he has two feathered wings. When Castiel was a seraph, he describes himself as a "multidimensional wavelength of celestial intent" and his true form is approximately the size of the Chrysler Building in height. As he was promoted to a Seraph, it stands to reason his true form has changed to one of a Seraph's. It is presumed to be very tremendous and terrifying, as the mere image of it was enough to cause Crowley to flee in fear of being smited.

For humans, they see him as the appearance of his vessel, Jimmy Novak, who is an average man in his thirties. He sports a pair of dress shoes, a black suit, a buttoned white-striped dress shirt, and loosened blue necktie accentuated by a beige trench coat. Although he has a very dire demeanor, his outward appearance radiates a natural calm and serenity which makes conversation easy and direct. He occupied Jimmy's body because he had prayed for it. Since his third resurrection, his appearance has changed. He lost his trench coat upon his third death and when he became amnesic, he wore different clothes. Upon regaining his memories, Dean gave him back his trench coat, but he still wore Emmanuel's clothes until he became insane. Now that he's insane he wears his trench coat and hospital scrubs. While in Purgatory he retained the same outfit, albeit extremely dirty and torn off. Castiel also grew a beard and his hair became messier. After returning from the monster realm, Castiel returned to his original appearance, with his suit and trench coat.

Castiel also possessed Jimmy's daughter, Claire Novak, for a brief time when Jimmy was still undecided if he would take back the angel. It would appear that Castiel could possess any willing member from Jimmy Novak's bloodline, not unlike how Michael was able to possess John Winchester, and three of his sons.

Castiel is strong, determined, impulsive, competitive, ignorant and naive. Like most angels, Castiel expresses little to no emotion which creates a lot of flaws and complexities in his persona. Despite this, he does not display the blank apathy or mocking superiority complex that seem to characterize angels such as Uriel or Lucifer. His lack of emotion and understanding of human traits such as sarcasm has often led to humorous situations throughout the show and have occasionally almost got him into trouble with humans, ultimately leaving Dean or Sam to amend the situation. He does, however, become close friends with the brothers, who encourage him to be more kind, caring and more selfless.

Unlike some of his brethren, Castiel still has faith in his father, though not to the near zealot-like level displayed by Michael. While he admits he may not always understand what God wants and question the reason for it, he would always follow his father to the best of his abilities. This, along with his interest in humans, has caused other angels to label him as odd or naive, but also peculiar. Anna and Lucifer have both demonstrated this, with Anna calling him a hypocrite for refusing to rebel in order to gain more freedom. Castiel loses this faith after Joshua reveals that God doesn't care and briefly falls into a depression, however, when God resurrects him for a second time, it returns. Castiel frequently exhibits what could be referred to as friendly affection towards Dean, and seems to at the very least come close to expressing regret, hesitance, and anger several times.

Being around the Winchesters and his own experiences in the War have taught Castiel several "tricks" that have helped him during the show. While not possessing free will in the same sense as a human, Castiel has learned how to "bend" the rules at times in season 4. The best example is when he informs Dean about Chuck's archangel thereby giving Dean the idea to use him to save Sam from Lilith (The Monster at the End of This Book). He also is able to distract Meg long enough to use her and a similar trick Uriel performed to free Alastair to free himself from a ring of holy fire (Abandon All Hope). It is also possible he learned from the demon Crowley to wipe out loyalists of his adversary e.g. Raphael. Castiel also considers himself to be the Winchester's personal guardian angel. Castiel developed more of a bond with Dean than with Sam (as he said they have "profound bond"). This bond allowed Dean to break Naomi's control on Castiel and possibly contributed to his turn from pacifism.

When Castiel is brought back from the dead after Lucifer kills him, he begins to develop a sense of pride. DuringSeason 6, Castiel's personality begins to change, notably being more prideful. It is also because of this pride that Castiel makes a deal with Crowley, and starts the civil war in heaven. During this time Castiel showed extremely high ambition, using all he could do to open the door of Purgatory. He also became very intellegent, capable of tricking Dean, Sam, Raphael, and even Crowley, who was noted of his intellegence.

Upon absorbing the souls, Castiel claimed to be the new God, though later Death refers to him only as a mutated angel. Previously acting kind and assuring but also fierce at times, Castiel had now become nearly purely cold and absolute in his decisions, as seen when he kills Raphael without any second thoughts. Mere seconds later, he demanded that Dean, Bobby, and Sam kneel before him and and be by his side or he will destroy them if they forgot their place and rise up against him. However, he still had some lingering affection for them, leaving them alone, though he lost this when they tried to kill him by binding Death. When he realized that he was out of control and that the Leviathans were influencing him, apparently at least somewhat responsible for the new personality, Castiel returns to his original personality with a lot of guilt and goes to his friends for help. Knowing Dean is furious with him for breaking Sam's wall and all that he has done, Castiel expresses true remorse for his actions and swears to do all he can to make up for what he did in Dean's eyes.

After his third resurrection, Castiel lost his memories and took on a more human personality, though he was still more distant than normal humans. He expressed affection for his wife Daphne Allen and retained his desire to help people as shown by the fact that when he rediscovered his healing powers, he used them to heal people in need, also showing great compassion. While shocked by the existence of demons, he took it relatively well once it was explained to him. He was perceptive enough to realize that Dean couldn't forgive "Cas" for what he had done and felt betrayed and that he himself was the Cas mentioned after overhearing some of Dean's conversation with Meg. In his human mindset, he had no idea of what he was capable of and was nervous with the idea of using his powers to kill demons when he had no idea how. However, despite this, he displayed courage in agreeing to try and seemed to still possess an instinctual knowledge of how to use them as he quickly figured out what to do.

After recovering his memories, Castiel's normal personality more or less returned, and he was overcome with guilt over what he had done, how many he had killed, and for releasing the Leviathans, even questioning why he was still alive. Following his awakening, his personality was greatly modified, due to a combination of what he had taken from Sam and his own guilt. It made him inattentive, overly calm, uncaring and seemingly dim. He also became a pacifist, and refused to fight, even when being attacked, as well as being overly optimistic, perceiving many negative things in a positive way. During this time he developed unique relationship with Meg, a demon, as she was his caretaker during his insanity. He showed open attraction to her, calling her a "thorny beauty". Although Meg doesn't return the feelings at the start, a year later she openly flirts with Castiel, and Castiel seemingly returns the attraction. In Survival of the Fittest, Castiel explains that his pacifism comes from being afraid of causing more damage with his actions. However, he agrees to break his pacifism and help stop the Leviathans, possibly out of loyalty to Dean as he agrees after Dean says he'll likely die trying to stop them. After agreeing, he doesn't hesitate to fight, helping to dispatch Royce and getting in front of Dean to protect him from Dick Roman and later restraining the Leviathan leader so Dean can kill him. Castiel also displays a bleak view on his resurrections: instead of believing it to be a gift from God for his service, he now sees his resurrections as punishment for his actions, telling Dean "I see now its a punishment resurrection, it gets worse every time."

After he and Dean were sent to Purgatory, his sanity and original personality was restored, although he himself states nobody could ever be sure if he is indeed sane. Following his return in A Little Slice of Kevin, Castiel displayed a slightly more laid-back personality and a much less detached persona and showed human emotions as well as a taste for human things, as he commented how he missed watching televison. He has also developed a strong desire for penitence, looking for anyway possible to redeem himself for the devastation he caused Heaven and his fellow angels.

Discussions with Uriel suggest the pair were children by Angel standards when Lucifer rebelled against Heaven and refused to bow down to humanity. While his brother was enthralled by Lucifer's power and charisma, Castiel remembered being frightened and disturbed by the rebellious Archangel. Castiel had been stationed on Earth for at least 2,000 years while being in the same garrison as Anna Milton, who acted as his superior, and Uriel. Castiel was present when the world was first created, making him (Biblically) several thousand years old (Uriel also made reference to questioning 'How long have I served' as '6 or 7 centuries'). He watched as the first fish emerged from the ocean. He also watched them build the Tower of Babel, among other historic and Biblical events, which possibly makes him billions of years old.

<p style="color:rgb(213,212,212);">In 2008, Castiel speaks with his true vessel, Jimmy Novak, in Pontiac, Illinois. When Jimmy is watching television, Castiel's voice distorts the picture and causes him to scream in pain and his body to spasm until he finally blacks out. Later, Castiel would tell Jimmy to put his in arm in boiling water and that he would be unharmed as a way to prove his faith. With his wife believing that he was going crazy, Jimmy asks Castiel what he wants from him and how he can help. Castiel explains that he needs to use Jimmy as a vessel, to which Jimmy agrees to as long as his family is protected. After receiving consent, Castiel possesses Jimmy. Before he leaves, Castiel is confronted by Jimmy's daughter, Claire, and tells her that he is not her father.

<p style="margin-top:0.4em;margin-bottom:0.5em;color:rgb(213,212,212);">When Dean Winchester broke the first of the 66 Seals that would allow Lucifer to walk free, the Angels took action. They fought their way to Hell and Castiel freed Dean from the pit. Dean awoke in a grave and made his way to the surface, not knowing how he had been resurrected; the only clue he had was a large imprint of a hand near his shoulder. After reuniting with Bobby Singer and Sam Winchester, Dean tried to learn what had rescued him from Hell. He also discovered that he'd been dead and buried for four months. Eventually, Dean took matters into his own hands and with Bobby's help, set a trap for the creature and protected himself and Bobby with multiple Devil's Traps and other anti-demon devices. Castiel arrived and the hunters shot at him as he passed through the Devil's Traps with ease. Dean stabbed him with Ruby's knife but it had no effect and Castiel quickly knocked out Bobby with a mere touch. Castiel explained who he was to Dean, telling him "I'm an angel of the Lord.", and that God has work for him.After people who were supposed to be dead seemed to be rising from the grave, Castiel appeared to Dean and explained to him that this was one of the 66 Seals, "The Rising of the Witnesses." Castiel told him that Lilith was attempting to break 66 of the seals which would lead to Lucifer walking free on Earth and then the Apocalypsewould begin. The Angels had been fighting to stop the demons, but the odds were against them. He explained to Dean that he must help stop the breaking of the seals as well. Castiel also showed that he was not a force to be underestimated or even taken lightly as in a chilling tone, he told Dean to start showing him some respect or he'd change his mind and throw him back into Hell again.One day when Dean was asleep, he woke up to find Castiel sitting beside him. Castiel, without speaking, tapped Dean and brought him back in time to an important few-day period. It showed Dean the connection between Azazel and Mary Winchester, and answered questions that had always been on his mind. Castiel said that the reason he had brought Dean back to that period was to make sure that he was caught up with all of the facts. He also explained that the angels are still unaware of Azazel's endgame. Castiel also told Dean about Sam's developing abilities and that he was going too far down a dark path and that if Sam did not stop using his powers, then the angels would kill him Sometime later, Castiel and his partner Uriel met with the Winchesters when they were in the middle of hunting a witch. The angels explained that the witch was trying to summon the demonSamhain from Hell and that this was another one of the 66 Seals. The angels said that they would have to destroy the entire town and all of its residents to ensure that the seal would not be broken. The brothers argued against this and assured Castiel and Uriel that they could stop the witch from summoning Samhain. While Uriel wanted to smite the town anyway and drag Dean and Sam away, Castiel agreed with them, later discussing with Uriel his disdain for humanity and their true orders. Unfortunately, the Winchesters failed and Samhain rose, breaking another seal. After Sam exorcised Samhain with his powers and stopped him, Castiel met with Dean in a park and revealed that the angels true orders were always to follow Dean's orders, not to smite the town and that this was a test of Dean's battlefield leadership. Castiel reveals that he always hoped that Dean would chose to save the town whether or not they failed and that he secretly harbors doubts about Heaven and its plans. Castiel and Uriel found Anna along with the Winchesters. The angels ordered Sam and Dean to hand over Anna, but they refused. The angels attacked them and almost retrieved Anna, but were sent away by a ritual Anna performed. They later were able to find Anna with the Winchesters again, but soon discovered that they had been led into a trap when Alastair arrived with a group of demons. The angels and demons fought over who would take Anna with Castiel fighting Alastair. Castiel proved no match for the demon, with his powers being useless, but Dean saved him despite being on opposite sides of the Anna situation. In the end, Anna retrieved her Grace and became an angel again and Alastair's body was destroyed, defeating him. Grateful for Dean saving him, Castiel held Uriel back from attacking Dean in revenge and they left to chase after Anna.When the angels learned that a woman named Anna Milton could listen in on angel's conversations they grew worried. If the demons were able to get to her before them, the demons would know everything that the angels were planning. But Castiel knew the truth: Anna had once been an angel, a superior to him who disobeyed. She cut out her Grace and fell to Earth, where she was reborn as a human. Castiel and Uriel knew though that the only way to ensure the safety of their plans were to kill Anna. While Castiel was hesitant about this, Uriel enforced the idea that it was absolutely necessary.

<p style="color:rgb(213,212,212);">When Alastair tried to break another seal by killing two Reapers on the night of the Solstice, Castiel managed to capture him having pretended to be Bobby to send the Winchesters after the seal. The angels held Alastair captive and when seven angels had mysteriously been killed, Castiel assumed that demons were behind the attacks. He and Uriel recruited Dean to interrogate the demon. During the interrogation, Anna returned and spoke with Castiel. She told him that she knew how he was feeling and that he was beginning to develop human emotions. Castiel refused to believe this and yelled at her, causing her to leave. Shortly after, the Devil's TrapCastiel had made to hold Alastair somehow malfunctioned and Alastair nearly killed Dean. Castiel fought the demon but was almost defeated when Sam came to his rescue, using his psychic powers to kill Alastair to Castiel's shock after torturing out of him that the demons weren't responsible for the angel deaths. While visiting Dean at the hospital, Sam criticized Castiel for being so cold-hearted as to risking Dean's life. This sunk into Castiel's head and he went to Anna for help, telling her he needed to know what to do; she told him it was time for him to decide on his own for once. Castiel investigated the broken Devil's Trap further and learned that it was Uriel who was behind the malfunctioning Devil's Trap and the angel killings.

<p style="color:rgb(213,212,212);">Castiel later appeared when Dean interrogated Chuck Shurley, who was writing a book series based on the Winchester brothers, explaining that Chuck was a Prophet of the Lord. When Dean asked him for help in saving Sam from Lilith, Castiel was initially hesitant to help, but dropped him a hint by telling him that Prophets are protected by archangels, and that if a Prophet is in the same room with a demon, then the archangel will descend to smite the demon.Uriel reminded Castiel of the times when Lucifer was one of the greatest angels and also spoke about how God isn't doing anything and they must follow someone who would. Castiel refused and the two angels fought. Castiel was no match for Uriel and was beaten down but was saved when Anna appeared and killed Uriel with his own Angel Blade. Castiel then went to Dean and confirmed that Dean was responsible for breaking the first seal by giving in to Alastair's torture. Dean begged Castiel to find someone else because he wasn't fit to stop the Apocalypse.

<p style="color:rgb(213,212,212);">Castiel then came to Dean while he was dreaming and told him to meet him at a certain location, saying that he had something to tell them. But when Dean and Sam arrived, they found him unconscious in a wrecked building with dead demons. When he awoke, the brothers found that Castiel had abandoned his vessel, Jimmy Novak, who describes being possessed by Castiel like "being chained to a comet." When Dean, Sam, Jimmy and Jimmy's daughter, Claire, were being held hostage by demons, Jimmy was shot and Castiel returned to possess Claire and helped save them all. While Castiel tried to comfort a dying Jimmy, Jimmy pleaded with Castiel to take him back as a host and Castiel accepted. When Dean asked Castiel what happened, he coldly replied, "I learned my lesson while I was away, Dean. I serve Heaven; I don't serve Man. And I certainly don't serve you."

<p style="color:rgb(213,212,212);">Later in When the Levee Breaks Castiel was summoned by Dean, who was screaming for three hours for help. When Castiel arrived, Dean asked him what happened in Heaven, but Castiel wouldn't say. Then Castiel recruited Dean in the service of God and his Angels. Castiel told him to wait till the Angels summons him. A few hours later he freed Sam from Bobby's panic room in which he was held captive, because of his addiction. Later Anna confronted Castiel about why he released Sam. Anna said that Sam was even worse than they had expected. Castiel told he has his orders to follow and then said to Anna that she shouldn't have come. The next moment two Angels stood beside her, and took her captive.

<p style="color:rgb(213,212,212);">Shortly after, Castiel confronted Dean and drew an Angel Banishing Sigil on the wall with his own blood after putting his hand over Dean's mouth to stop him from shouting until he realized Castiel was helping him. Then Zachariah appeared and asked what he was doing. Castiel pressed his bloody hand on the sigil, banishing Zachariah. He then said that Lillith is the final seal and that Sam is going to break it. He said he knew someone that knew where Sam was and teleported Dean with him.Later Zachariah brought Dean to a chamber, so he would be safe for the release of Lucifer. Zachariah told him that the final seal would be broken that night. Although had a fight with Sam, Dean tried to contact him on his cellphone, leaving a message on his voicemail. Later Dean wanted to talk with Sam and summoned Castiel by breaking a Stone Angel on one of the tables. Dean asked to visited Sam, but Castiel said he could go everywhere except to Sam. Dean asked what they were going to do with Sam. Castiel said that Sam is going to do it to himself, but he didn't want to say more. He said it was his destiny. Dean said that destiny was just a bunch of lies, to keep him in line. Dean tried to persuade Castiel to help him, but Castiel said that they would be all be hunted, that they would all be killed. In response, Dean said to him that this is worth dying for. But to Dean's disappointment, Castiel refused and Dean ordered him away. Castiel tried to get Dean to listen, but left when he refused.

<p style="color:rgb(213,212,212);"><span class="mw-headline" id="Season_5" style="font-size:18px;">Season 8

<p style="color:rgb(213,212,212);">In We Need To Talk About Kevin, Dean escapes Purgatory with the help of the vampire Benny, but Castiel is not with him. Dean later tells Sam that Castiel died in Purgatory, that it got hairy near the end and Castiel "let go." While Dean doesn't elaborate, this clearly affects him greatly.

<p style="color:rgb(213,212,212);">He appears in another flashback, where he is struggling to hold on to an arm, while it is unclear what the scenario is, Castiel shouts Dean's name as they are pulled apart.Dean has flashbacks of Castiel and it was revealed in What's Up, Tiger Mommy?that he had succeded in his relentless search of finding Castiel. After they greet, Dean asks if he is sane again, which Cas says he is, or in their case, as sane as he can be, seeing as he an angel in Purgatory. He then tells Dean that after their arrival in Purgatory, he actually ran away. This lead Dean to believe he left him to fend for himself. Shocked and disbelieving this notion, Castiel elaborated by telling him that he was surrounded by Leviathan and had to get them away from Dean to protect him. Dean firmly insisted that he would not leave Purgatory without him.

<p style="color:rgb(213,212,212);">In flashbacks in Blood Brother, Castiel, Dean and Benny come under attack by three monsters and Castiel kills one with his powers. Castiel and Benny try to convince Dean to let Castiel stay away from Dean because as a Seraphhe is drawing monsters to him and the way out of Purgatory might not even work for him as he isn't a human or former human like Benny. However, Dean refuses to leave him behind and before they can argue anymore, Castiel senses Leviathans approaching them. Castiel is unable to teleport them out as the Leviathans are too close so they run, but are ambushed by two Leviathans. One manages to defeat Castiel, but before she can kill him, Benny decapitates her, saving Castiel to Dean's shock.

<p style="color:rgb(213,212,212);">Castiel formally took up the mantle of being a hunter in Hunteri Heroici. Dean and Sam were skeptical at first, but both eventually allowed the seraph to join them in a case that Castiel himself found. The Winchesters also guided Castiel on how to pose and act as an effective hunter. Castiel also admits that he fears returning to Heaven: he fears that when he returns and learns just how bad he made it, he will kill himself out of regret. While Castiel is awkward and clumsy at being a hunter, he proves very helpful in solving the case, using his powers to bring Sam into the mind of Fred Jones, a man who is living inside his own mind as it is easier than having to live with the real world. Sam gives Fred a speech about living in a dream world and how it can be good for awhile, but eventually you have to wake up and deal with your problems, something Castiel clearly listens to. After the situation is resolved, Castiel offers to remove Fred's powers when he wants to make sure it won't happen again, but warns that it will be very painful and he isn't sure how much of him will be left. Fred agrees and Castiel does the procedure, leaving Fred in a mentally-distant state, but happy. Even though Sam and Dean have come to accept Castiel as a hunter, to the point that Dean offers to allow Castiel to ride "shotgun" in the Impala, something he had previously refused, Castiel decides to return to Heaven to face up to what he has done, but Naomi refuses to allow it and asks him what hewants to do. Castiel decides to watch out for Fred for a few days, but also to stop running from his problems.Castiel finally escapes Purgatory in A Little Slice of Kevin. He claims he could not remember how he escaped, a story not received well by a doubtful Dean. Castiel aids the Winchesters and Mrs. Tran in saving Kevin and retrieving the tablet from Crowley. He displays much of his previous abilities, but suffers observable fatigue after using them. Sensing Kevin in danger, Castiel teleports into the room with him and Crowley and confronts his former partner with his Angel Blade. Crowley pulls out one of his own and believes Castiel is bluffing in his clearly weakened state. Castiel displays his wings and goes to smite Crowley who finally retreats, but tries to take the tablet with him. Castiel smashes it in half and Crowley only gets away with one half. The experience causes Castiel to collapse however. After the confrontation with Crowley, Castiel reveals to Dean at the portal that he intentionally wanted to be left behind in Purgatory as a form of penance. Moments after, Castiel finds himself with in Heaven, with another angel. It is then revealed that his escape was orchestrated by the angel Naomi, who sent an incursion that claimed the lives of several angels to aid the seraph. Much to his own surprise, Castiel casually reveals information about the Winchesters and the tablet under the simple request of Naomi. He is then sent back to earth without recollection of the meeting with Naomi and the orders to report into her every so often. He then agrees to help Sam and Dean search for the second half of the tablet and fixes Kevin's cut-off finger.

<p style="color:rgb(213,212,212);">In Torn and Frayed, he is shown helping people in need, in repentance for his previous actions. He cures a baby of an unknown disease (due to which the baby cries incessantly), which couldn't be detected by doctors themselves. He was ordered by Naomi to rescue a fellow angel Samandriel, who was held captive by Crowley in an abandoned building heavily covered with Enochian sigils that he locates with Dean's help. Castiel gathers the ingredients needed to make a "demon bomb" and retrieves Sam against Dean's wishes, telling them to "stow their crap." During the attack, Castiel gives Sam his Angel Blade to kill demons with and remains outside until Sam and Dean deal with the wards and demons. He was then able to teleport Samandriel to safety, but not before Samandriel revealed to Crowley the existence of an Angel tablet. Outside, Samandriel warns Castiel about this and that "they're" controlling him. Castiel asks who is and who Naomi is when Samandriel brings her up, but before he can explain, Naomi orders Castiel to kill Samandriel, which he does without hesitation. (Throughout the rescue, Castiel saw vague flashbacks of Naomi inserting a certain device into his eye.) Shocked, he demands answers from Naomi, who reveals that knowledge of the angel tablet could cause great harm in the hands of a demon. Under Naomi's orders, Castiel claims he killed Samandriel in self-defense and that he is taking his body to Heaven to be put to rest (in actuality so Naomi can determine how much he broke), but his weird behavior and the fact that one of his eyes starts bleeding draws their suspicion that something is wrong and that he is being controlled.

<p style="color:rgb(213,212,212);">In Remember the Titans, Dean desperately prays to Castiel to look after Sam who is not doing so well with his trials. Despite Dean's near-begging, Castiel does not appear or respond.

<p style="color:rgb(213,212,212);">In Goodbye Stranger, Castiel has become so indoctrinated to Naomi's control that he has no trouble ruthlessly killing a copy of Dean and is shown to have killed hundreds of others. He is sent to locate the angel tablet which is in one of Lucifer's Crypts and to stop Crowley from getting it. His interogation and killing of the demons involved draws Sam and Dean's attention and he arrives in time to save a weakened Sam from a demon that is attacking him. Castiel captures another demon and binds it in a Devil's Trap before claiming to Sam and Dean that he is searching for Crowley's half of the demon tablet and that the demons are searching for a parchment that will allow them to translate the tablet without a Prophet. Castiel tortures the demon for information and after learning the location of the being that is telling the demons where to find the crypts, he kills her before she can reveal the truth to Sam and Dean on Naomi's orders. Castiel heads to the hotel the demon indicated without Sam and Dean and kills all of the demons there before they arrive and they find that the hostage is Meg. Castiel is able to get Naomi to let Meg explain the truth as she could be useful and afterwards bandages her wounds. Meg flirts with Castiel about their kiss in Caged Heat and subtly tells him she wants to have sex with him, something he doesn't catch on to at first. The group travel to the warehouse where the crypt is located and when Dean orders Sam to stay outside, Castiel tells Sam that he is damaged on a level that even Castiel can't heal. Castiel later explains to Dean that the damage is all the way down to the subatomic level before they find the crypt. Naomi orders Castiel to throw Dean off the trail or kill him, but he is forced to point out the box with the angel tablet in it to Dean as it is angel-proofed. Under Naomi's control, Castiel attacks Dean and tries to kill him, but manages to break free at least somewhat before he kills him after Dean tells him that they are family. When Castiel picks up the angel tablet, it severs Naomi's connection with him and all of her control over him and he heals Dean and explains what happened. However, Castiel senses that for some reason he must keep the tablet safe from Dean as well and disappears with it. Naomi later tells Crowley that Castiel is doing what he is meant to do, which is protect the tablet from all threats. Castiel is later seen riding in a bus with the tablet to an unknown location.

<p style="color:rgb(213,212,212);">In response to Castiel's departure with the tablet, Naomi starts a search for him, trying to enlist Dean's help in Taxi Driver at which time she claims that he is still insane and was simply misinterpreting her orders when he tried to kill Dean. Despite Castiel's behavior, Dean trusts him over Naomi and refuses to believe her.

<p style="color:rgb(213,212,212);">In The Great Escapist, Castiel travels between all of the Biggerson's at once, stopping only for very brief periods to throw the angels off of his trail. Its successful until they slaughter everyone in one of the Biggerson's to force him to stop and learn what happened. While he is distracted, Castiel is captured by Naomi, Ion and Esper. Naomi reveals that Castiel has been involved in many atrocities throughout human history, but that his memory of it has been erased because he never follows orders like he is supposed to. Naomi demands the angel tablet, but Crowley arrives, kills Esper, wounds Ion who is revealed to be working with him and drives Naomi off. Crowley has realized that Castiel is keeping the tablet close to him in case Naomi ever tries to regain control of him again and shoots Castiel in the gut then painfully pulls the angel tablet out of his body. Before he can do more, he gets a call that Kevin has figured out Crowley's trick and Crowley leaves to deal with the problem, leaving Ion to guard Castiel. Castiel pulls the bullet Crowley shot him with out, overpowers Ion and pushes the bullet through his eye, killing him. Castiel later appears on the road in front of Sam and Dean, severely wounded and weakened and asking for their help.

<p style="color:rgb(213,212,212);">In Clip Show, Castiel is living in the Men of Letters Bunker with Sam and Dean and slowly recovering from his wound. Dean is furious with Castiel and refuses to forgive him for abandoning them again and most importantly, not trusting Dean despite all of Castiel's attempts to apologize. Castiel watches the film they find of a mysterious exorcism and comments that the changed words mean to cleanse or purify. When Sam and Dean leave to check it out, Castiel goes to get them food as they are out, but makes a mess of the store. He gets Dean's favorite beer and porn to try to appease him and also tries to get him pie and is angry and desperate when they are out. Metatronarrives and calms him down and reveals that Heaven has degenerated into many warring factions which Naomi is only the leader of one, not all of Heaven as he had previously believed. Metatron suggests Castiel do the trials to seal up Heaven so that they can lock the angels together and force them to sort out their problems while keeping the war from spilling over onto Earth. Castiel agrees after Metatron reveals that as the Scribe of God, he knows the trials even without the angel tablet and is stunned when the first trial is to kill their waitress and cut out her heart as she is a Nephilim, the child of an angel and a human. When they go after her, Castiel hesitates as she is an innocent woman, but when she attacks him and Metatron, he kills her with his Angel Blade.

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<p style="color:rgb(213,212,212);">In Sacrifice, Metatron reveals that they must get Cupid's bow as the next trial and Castiel asks him about God. Metatron describes him as like one would expect: larger than life, gruff, a bit sexist and eminently fair. As they wait for Cupid to come to make the man, Dwight, fall in love, Castiel goes through personal ads to try to make it go faster by finding him a candidate. While they are waiting, Naomi arrives with two other angels and captures Metatron. Castiel faces off against them with his Angel Blade, but lets them go when Metatron tells him to. Needing help, Castiel goes to Dean who agrees after Sam insists. Castiel and Dean bring the angel tablet to Kevin to translate the last trial and Castiel scares him into doing it when he refuses. As they watch, a woman named Gail approaches Dwight and makes him and one of his regulars fall in love. Castiel prepares to confront Gail while armed, but Dean convinces him to talk first. Gail is worried about the state of Heaven and agrees to give them her bow if they really think they can calm it down, but Castiel must cut it out of her hand. Kevin contacts them to let them know that while he has found the trials, he doesn't see anything about killing a Nephilim or the bow of a Cupid. At that moment, Naomi arrives and though Castiel goes to fight her, she insists she just wants to talk and Dean gets him to hear her out. Naomi tells Castiel that she has learned from Metatron's mind that what he is doing isn't going to seal Heaven up, it will instead expel all angels from it permanently. She expresses remorse for her actions, telling Castiel and Dean that angels were meant to protect humanity and lost sight of that somewhere along the way. She also informs Dean that if Sam completes the trials he will die as he makes the "ultimate sacrifice" to seal Hell. Naomi offers to hear Castiel out if he really wants to return to Heaven before disappearing. When Kevin can't confirm what Naomi told them through the angel tablet, Castiel doesn't believe her, but transports Dean to the church where Sam is curing Crowley before departing for Heaven. There he finds Naomi dead with her own torture device impaled in her brain and is captured by Metatron who reveals that she was telling the truth. Metatron takes Castiel's Grace as the last ingredient for the spell he is working and sends him to Earth, but not before telling him that he is now human and Metatron wants him to live a human life, die, come to Heaven, find him and tell him about that life. On Earth, Castiel watches as all the angels begin to fall to Earth as Metatron's spell takes effect.

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