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{{RecurringCharacters
|image= [[File:Castiel-S14.png|350px]]
|name= Castiel<br>[[Clarence]]<br>[[James Novak]]<br>[[Emmanuel Allen]]<br>Steve
|actor= [[Misha Collins]]<br>[[Sydney Imbeau]] ([[4.20 The Rapture|4.20]])<br>[http://www.imdb.com/name/nm4135906/ Jessa Danielson] ([[12.10 Lily Sunder Has Some Regrets|12.10]])
|dates= Creation
He also displays the unique ability to tell the Leviathans apart no matter what form they take. According to Meg this is due to the Leviathans briefly using him as a vessel, which allows him to know them "better than anyone."<ref name="seven23">[[7.23 Survival of the Fittest]]</ref> He also displays the ability to sense the presence of nearby Leviathans before they become known to anyone else.<ref name="eight05">[[8.05 Blood Brother]]</ref>
While originally aiding the Winchesters mainly with cases related to angels and demons, Castiel sought to become a [[hunter]] himself following his return from Purgatory. However, though Castiel was helpful on his first case, he wasn't very good at being a hunter.<ref name="eight08" /> Though he proved able to provide backup on several regular cases and even hunt [[Lucifer]] with [[Crowley]] as his partner,<ref name="twelve03">[[12.03 The Foundry]]</ref> when the Winchesters were arrested by the Secret Service, Castiel tried to hunt [[vampires]] on his own, but lacked the skills to locate them and had to give the case to [[Mary Winchester]].<ref name="twelve09">[[12.09 First Blood]]</ref> Castiel's effectiveness as a hunter for most of his career is mainly as backup in situations, though over time his skills have increased significantly. Following the birth of [[Jack]] and his own resurrection, Castiel acted as a full hunter on a [[ghoul]] case, displaying a knowledge of the lore surrounding the creature and a better ability to blend in as law enforcement than on previous occasions, though he still remained somewhat awkward at it.<ref name="thirteen06">[[13.06 Tombstone]]</ref> Following the return from [[Apocalypse World]], he was able to act as a part of Sam's hunter network, backing up hunters other than the Winchesters on cases.<ref name="fourteen13">[[14.13 Lebanon]]</ref> While dealing with the [[Hell Ghosts]], Castiel proved able to use a shotgun and rock salt in battle without issue,<ref name="fifteen01">[[15.01 Back and to the Future]]</ref> a change from the time he struggled to understand the purpose of such a weapon while going up against Niveus Pharmaceuticals.<ref name="five21">[[5.21 Two Minutes to Midnight]]</ref> While on vacation, almost two years after his last known attempted solo case,<ref name="twelve09" /> Castiel proved himself to have grown into a skilled hunter in his own right, able to interact effectively with law enforcement on his own, go through case files, determine what type of monster he was dealing with, figure out its pattern and determine a possible location for its lair all without help from the Winchesters or other hunters.<ref name="fifteen06" />
With Heaven failing and the angels nearly extinct, Castiel's powers have begun failing him. This has been going on for some time, though Castiel states that Dean has never listened when Castiel has tried to tell him this.<ref name="fifteen03">[[15.03 The Rupture]]</ref> Presumably as a result, he is unable to heal [[Arthur Ketch]] of two gunshot wounds<ref name="fifteen02">[[15.02 Raising Hell]]</ref> and struggles with healing a boy of a leg injury.<ref name="fifteen06">[[15.06 Golden Time]]</ref>
===Powers and abilities===
Sam is battling Lucifer in Hell while Rowena, under the power of a [[witchcatcher]] and Crowley and Dean's orders, works on a spell to send Lucifer back to the Cage. However, when Sam begins screaming louder, Dean and Castiel rush in to defend him for the remaining minutes the spell takes. During the fighting, Lucifer tells Castiel that he is the only one who can defeat the Darkness. When confronted again, Castiel secretly agrees to possession of his vessel in order to defeat Amara. Lucifer disappears, and in Castiel's vessel, he pretends to still be Castiel until Sam and Dean have driven off (and will continue pretending to be Castiel around them for the duration of the next four episodes). He then reveals himself as Lucifer to Rowena and Crowley. After confirming with Rowena that she is the only one who can open [[Lucifer's Cage]], he snaps her neck and imprisons Crowley.
It's later revealed that, despite Lucifer having control of his vessel, Castiel is still inside also and aware of what Lucifer is doing but unable to control it, similar to when Lucifer possessed Sam.<ref name="five23five22">[[5.22 Swan Song]]</ref>
===[[11.14 The Vessel]]===
===[[11.23 Alpha and Omega]]===
:''"They know -- they know God is dying and they don't think we can win this. Souls or no souls. They're sealing Heaven, and they're 'dying with dignity.'"''
Checking on [[Lucifer]] after the fight with [[Amara]], Dean is surprised but pleased when it turns out to be Castiel and not the [[archangel]]. Castiel tells the others that Lucifer is gone and he's not sure what happened to him before they are teleported back to the bunker.
With the attack on Amara failed and [[Chuck Shurley|Chuck]] dying, the group reconvenes at the bunker and attempts to come up with another plan of attack. Believing there is no hope left, Dean is resigned to failure and opts to make a beer run instead. Castiel goes with him, and on the drive, he confesses to Dean that he feels stupid for having believed Lucifer would be able to stop Amara. Dean reassures him that he was right to try what was the best option at the time. He goes on to say, "You're always there, you know? You're the best friend we've ever had. You're our brother, Cas. I want you to know that." Castiel thanks him, Sam calls with news of a new plan, and Dean and Castiel head back to the bunker to hear it.
===[[13.07 War of the Worlds]]===
:''"You'll forgive me if I'm a little on edge. The last time we were together, you killed me."''
In an attempt to find the missing [[Jack]], Castiel decides to meet with one of his [[angel]] contacts for information, but refuses to let Sam and Dean come along. At the portal to [[Heaven]], Castiel meets with [[Dumah]], who reveals that the angels don't have Jack. She says that if they did, they would enslave him to make more angels, to Castiel's shock and horror. Dumah reveals that the angels, after all of their losses, are very nearly extinct. Castiel wasn't aware of this, but still refuses to help his siblings capture Jack. Castiel fights with Dumah and two other angels before they are interrupted by the unexpected return of [[Lucifer]], who scares off the other angels. Castiel realizes that the [[archangel]] is in a weakened state, but Lucifer insists that he is still too strong for Castiel to kill and despite Castiel's reluctance, insists on meeting with him to discuss the situation.
Traveling to a bar, Lucifer reveals to Castiel the threat from the Apocalypse World [[Michael (Apocalypse World)|Michael]] and is frustrated that the Winchesters have lost his son. Though Lucifer wants to work together, Castiel is reluctant to trust the archangel as Lucifer had killed him the last time they met. Lucifer points out that Castiel stabbed him that time too, causing Castiel to give a sarcastic apology. Though Castiel tries to call the Winchesters and warn them, Lucifer stops him as he feels the Winchesters will only complicate things. Lucifer and Castiel's meeting is interrupted by the arrival of the demons led by the [[Prince of Hell]] [[Asmodeus]]. Aware of Lucifer's weakened state, Asmodeus refuses to bow to him and subdues and captures both Lucifer and Castiel. By the time Sam and Dean arrive, Asmodeus and the angels are gone with only Asmodeus' henchmen left to ambush the hunters.
Dean later calls Castiel to check on him. Posing as Castiel using his shapeshifting powers, Asmodeus claims that "he" tried to call and warn them but couldn't get a signal. Asmodeus, as Castiel, lies that he is following a very interesting lead and will let the Winchesters know when he knows more. At the same time, Castiel and Lucifer are locked in cells next to each other in [[Crowley's Lair]]. Asmodeus explains to [[Arthur Ketch]] that he's a collector and Lucifer could be useful while Castiel is a card he can play if the Winchesters get out of line. Needing Jack if Michael is indeed coming, Asmodeus hires Ketch to find him.
===[[13.12 Various & Sundry Villains]]===
Returning to the bunker, the two discover that Donatello attacked Sam and has begun crazily muttering in the dungeon. Dean and Castiel explain how they were set up by Donatello who wants them all dead. Castiel watches through a [[camera]] as the Winchesters interrogate Donatello who explains that he translated the tablet and saw all the power of [[God]] and now believes that they want to take it from him and then uses a spell to try to suffocate Dean. Afterwards, the three try to figure out what happened to drive Donatello insane and while Castiel has heard of a [[Prophet]] who was tempted, he had never given in. Sam realizes that the difference between Donatello and [[Kevin Tran]] is that Donatello is [[soulless]], alarming Castiel who explains that the human [[soul]] acts as a filter, inoculating the Prophet against whatever darkness exists within the tablet.
The Winchesters are left in despair because they had been so close and they have no way to restore Donatello's soul. Castiel points out that even if they could, Donatello is already corrupted and suggests that the kindest thing to do would be to kill Donatello and get the next Prophet in line to translate the spell for them. However, the Winchesters refuse to kill Donatello as they just need the spell. Fed up with the arguing, Castiel decides to take action, locking Sam and Dean out of the dungeon. Castiel confronts the restrained Donatello who confirms that he gave them the wrong ingredients and though he knows the right ones, refuses to give it to them. Castiel reveals that he is going to do something that he promised to never do to a human without their permission: he is going to strip the spell from Donatello's mind. Donatello warns Castiel that he has absorbed too much power and trying could fry them both, but Castiel is undeterred and stops Donatello from casting a spell before painfully stripping the spell from his mind. Afterwards, Castiel emerges from the dungeonstating that he knows what they need to do, leaving Donatello unconscious and bleeding from his eyes, nose and mouth.
Later, Sam and Dean return to the bunker and angrily reveal that while Donatello is still alive, he is brain dead, only kept alive on life support. Unrepentant, Castiel states that Donatello's soul was gone and he was corrupted and a danger to humanity before revealing that Donatello was working with [[Asmodeus]], albeit unwillingly. Castiel states that some people just can't be saved and while no one gave him the power to make that decision, he took it. Without Castiel having acted, they would still be talking and arguing about to what to do, wasting time that they don't have as war with Michael is coming. Instead, they now have the spell they need to open the rift. Castiel reveals that they need the [[grace]] of an [[archangel]], fruit from the Tree of Life, the [[Seal of Solomon]] and the blood of a most holy man. With those four ingredients, they can bring everybody home and together beat Lucifer and Michael. Castiel is insistent that this is the only way they will win and survive and they must do whatever it takes.
===[[13.15 A Most Holy Man]]===
===[[13.18 Bring 'em Back Alive]]===
:''"No. You cannot turn your back on your father's creation."''
After the revelation of [[Gabriel]]'s survival and his rescue by [[Arthur Ketch]], Castiel returns to the bunker to help tend to the near-catatonic [[archangel]] and is frustrated to learn that Dean has gone to [[Apocalypse World]] with Ketch. Sam and Castiel try to feed Gabriel his [[grace]] that Ketch recovered from [[Asmodeus]] without success, but Gabriel writes his story in [[Enochian]] on the walls of his room, giving them hope that Gabriel's mind is still in there. By translating the story, Castiel and Sam are able to learn that Gabriel faked his death when [[Lucifer]] stabbed him and was eventually captured and sold to Asmodeus. Unable to heal an archangel, Castiel tries to jolt Gabriel's mind to awareness with his powers, but its Sam's pleas that seem to finally reach Gabriel who reabsorbs his grace before they get a threatening call from Asmodeus demanding that they turn Gabriel over to him.
Asmodeus leads a demonic incursion into the bunker to recapture Gabriel. During the fight, Castiel overpowers one demon and [[smiting|smites]] another that gets the better of Sam, but they are both taken down and tortured by Asmodeus. Castiel and Sam's predicament finally snaps Gabriel out of it and he fights back against his captors, healing the injuries he suffered from Asmodeus' torture. Gabriel proves to be more than a match for Asmodeus and kills the [[Prince of Hell]]. However, he refuses to join the fight against [[Michael (Apocalypse World)|Michael]] and Lucifer and departs the bunker after Castiel and Sam fill him in.
When Dean returns from Apocalypse World, Castiel and Sam reveal the death of Asmodeus and the departure of Gabriel. Having been unable to find [[Mary Winchester|Mary]] in the twenty-four hours he had in the other world and lacking Gabriel or his grace to reopen the doorway, Dean is left extremely frustrated by this news.
===[[13.19 Funeralia]]===
===[[14.08 Byzantium]]===
:''"Because I made a promise. Because I love you, Jack. And Sam and Dean-- they love you. And they are fighting for you at this very minute. I hope that… They don't need to know what happened here. What I did-- I'm-- I'm-- I'm at peace with my choice. I don't want them to worry."''
[[Jack]] dies of his affliction, devastating the Winchesters and Castiel. The three spend the night drinking and sharing stories and in the morning, Sam calls in [[Lily Sunder]] in hopes that she can read [[Kevin Tran]]'s [[Tablets#Angel Tablet|angel tablet]] notes and find something that can help them to save Jack. Displaying none of her previous antagonism towards Castiel, Lily determines that she can't read the notes, but offers a solution using her [[Enochian]] magic to sacrifice a piece of Jack's own [[soul]] to sustain him. Castiel realizes that if Jack is in [[Heaven]], he can pull Jack's soul back into his body for just long enough for Jack to perform the spell. However, Lily demands that the Winchesters ensure that what remains of her own soul get into Heaven in exchange. Castiel tells the Winchesters about [[Anubis]], the deity used to determine where a person's soul will end up, but receives a distress call over [[angel radio]] that reveals that something has happened in Heaven and all of the gates have been thrown open, even the ones that [[Metatron]] closed. Castiel leaves the Winchesters to deal with Anubis and Lily while he travels into Heaven to find Jack and uncover what is happening.
In Heaven, Castiel finds the place virtually abandoned and learns from [[Dumah]] that Heaven has been invaded. Searching Jack's Heaven, the two find him missing, but are met with [[Naomi]] who explains that the [[Cosmic Entity]] from [[the Empty]], the same being that resurrected Castiel, has invaded Heaven in search of Jack's soul due to his half-angel nature before Naomi is consumed by the Entity as well like all of the rest of the angels.
Continuing his search, Castiel finally locates Jack's soul in [[Kelly Kline]]'s Heaven where he is warmly reunited with his old friend. Though Jack is dead, Kelly states that Castiel still kept his promise to her since Jack is so wonderful. Castiel proposes to Jack their plan to bring him back, which worries Kelly because it will sacrifice part of his soul. However, it will also cause the Entity to leave Heaven since Jack will no longer be there. The Entity reveals itself to be possessing Dumah and attacks to take Jack to the Empty as Dean prays to Castiel that they are ready on Earth. Unable to defeat the Entity, Castiel offers to trade himself in Jack's place if the Entity will allow him to return to life. Castiel reminds the being that it could be eons otherwise before it gets him and the Entity accepts, but states that it will only take Castiel once he is truly happy. After the Entity leaves, Castiel asks Jack not to tell the Winchesters as Castiel doesn't want to burden them with his choice which he is at peace with. Jack accepts and after a goodbye with his mother, Castiel [[resurrection|resurrects]] Jack, allowing him to complete the spell and be cured.
After departing Kelly's Heaven, Castiel is greeted by Naomi who thanks him for his actions even if they weren't done to save Heaven. In turn, Naomi offers Castiel the location of [[Michael (Apocalypse World)|Michael]] as a reward. Upon returning to Earth, Castiel shares this news with the Winchesters and Jack who celebrate both Jack's return and knowing where to attack Michael.
===[[14.09 The Spear]]===
===[[14.19 Jack in the Box]]===
:''"A hunter's memorial, complete with monster. Mary would've appreciated that."''
Castiel attends [[Mary Winchester]]'s hunter's memorial which is interrupted by [[Bobby Singer (Apocalypse World)|Bobby]] killing a [[Wraith]] that is in attendance. Castiel notes that Mary would've appreciated having a hunter's memorial complete with a monster, a sentiment that Bobby agrees with.
After the memorial, Castiel begins searching for [[Jack]], traveling to [[Heaven]] to seek [[Naomi]]'s assistance. However, [[Dumah]] reveals that she has overthrown Naomi following the invasion by the [[Cosmic Entity]] and is intrigued by Castiel's description of Jack's [[soulless]] state. After learning of Dumah's efforts to establish a reign of terror using a manipulated Jack, Castiel attempts to return to Heaven to retrieve Jack but is blocked by [[Eremiel]]. Castiel is able to overpower the other angel and force him to let Castiel into Heaven where he confronts Dumah over her actions. Dumah is unrepentant, but refuses to let Castiel leave with Jack. When Castiel challenges her on the issue, Dumah threatens to end [[John Winchester|John]] and Mary's peaceful shared Heaven with a snap of her fingers if Castiel fails to comply. Enraged by the threat against his friends, Castiel instantly draws his [[angel blade]] and kills Dumah before heading off in search of Jack.
Upon returning to Earth, Castiel is enraged to learn that Jack has been tricked into the [[Ma'lak Box]]. To Sam, Dean and Castiel's shock, Jack is able to break free of the box powerful enough to hold an [[archangel]], destroying it in the process.
===[[14.20 Moriah]]===
===[[15.01 Back and to the Future]]===
:''"Dean, I can't. I-I... I can't even look at him."''
As the [[zombie]]s swarm them, Castiel fights them off with his [[angel blade]] and [[smiting]]. However, as the Winchesters and Castiel start to get overwhelmed, Castiel grabs [[Jack]]'s corpse and leads them into a nearby crypt for safety where they discuss options. As the zombies are just corpses possessed by the [[Hell Ghosts]], Castiel suggests salting and burning their bodies to get rid of them, but that idea is shot down. The three are joined by the [[demon]] [[Belphegor]] who possesses Jack's corpse, much to Castiel's disgust and ignores Castiel's orders to get out of Jack. Belphegor insists that he can help them as he wants [[Hell]] returned to normal and Castiel reluctantly gives the demon some of his blood for a spell to eject the souls from the corpses they are possessing.
After escaping the cemetery, the group finds the aftermath of an attack by the escaped ghost of [[Constance Welch]] and Belphegor suggests a spell to create a mile-wide barrier to contain the escaped ghosts until they can find a solution to deal with them. Castiel realizes that the town of Harlan, Kansas is within that radius and the Winchesters decide to evacuate Harlan for protection of the residents. Dean assigns Castiel to help Belphegor prepare for the spell, but Castiel refuses as he can't even look at the demon possessing the body of his surrogate son and so decides to help Sam clear out the residents while Dean helps Belphegor instead.
Armed with a shotgun loaded with rock [[salt]], Castiel joins Sam in clearing out the houses. Castiel arrives in time to save Sam from the ghost of [[serial killer]] [[John Wayne Gacy]] and [[healing|heals]] Sam's wound from the ghost. However, Castiel proves to be unable to heal Sam's wound from [[the Equalizer]], getting [[Chuck's Endings|a disturbing vision]] when he tries and sensing a strange energy that he has never felt before from the wound. Sam and Castiel rescue a mother and daughter from Gacy's ghost, but have to fight off Gacy, [[Mary Worthington]] and two other Hell Ghosts to escape. Though he is briefly overpowered, Castiel manages to recover his shotgun and save Sam. With Belphegor succeeding in establishing the barrier, the group manages to escape to the other side, leaving the Hell Ghosts trapped within.
With the ghosts trapped, Castiel, Belphegor and the Winchesters bring the mother and daughter to the high school where the residents have been evacuated and convince them not to say anything about what they saw. Things remain awkward between Castiel and Dean and the angel brushes off Belphegor's offer to talk about it.
===[[15.02 Raising Hell]]===
===[[15.03 The Rupture]]===
:''"Jack's dead. Chuck's gone. You and Sam have each other. I think it's time for me to move on."''
With more [[Hell Ghosts]] escaping, [[Rowena]] attempts to use a spell from the ''[[Book of the Damned]]'' to strengthen the barrier. However, the spell fails as the ghosts are too strong and the barrier too weak. After the failure, [[Belphegor]] visits the rupture to [[Hell]], joined by Castiel who continues to remain suspicious of the [[demon]]'s motives. Belphegor reveals that the rupture is not a gate or portal, but a tear [[God]] opened straight into Hell itself and suggests using [[Lilith's Crook]] to draw all of the souls and demons back in. Though the Crook is locked in [[Lilith's Chamber]], the Chamber was opened by God along with all of the other doors in Hell. However, Belphegor demands that Castiel accompany him into Hell as protection from the remaining demons while the Winchesters and Rowena use the [[Spells#Sanetur Acre Vulnus|Sanetur Acre Vulnus spell]] to close the rupture. Dean, without hesitation, agrees to Castiel joining the demon, much to Castiel's frustration.
After shoving Belphegor into the rupture, Castiel jumps in after the demon and travels through Hell with him. Castiel's suspicions of Belphegor continue to grow as he learns that Hell has been emptied out of demons which Belphegor already knew and thus didn't need Castiel's protection. Belphegor claims that he just wanted company and notes the strained relationship between Dean and Castiel. In Lilith's Chamber, the two find the demon Malfayan raiding [[Lilith]]'s treasures and Castiel kills the demon after its confirmed that he doesn't have the Crook. Belphegor leads Castiel to a box sealed with an [[Enochian]] prayer to [[Lucifer]] which contains the Crook and Castiel realizes that Belphegor actually needed his help to open the box. Much to Castiel's discomfort, he is forced to sing the prayer to open the box, only to have [[Ardat]] attack them. Ardat reveals to Castiel that Belphegor is actually seeking to become King of Hell before Belphegor kills her with an [[angel blade]].
Castiel confronts Belphegor who tries to convince Castiel to leave before throwing him out of Lilith's Chamber with [[telekinesis]]. Belphegor reveals that Ardat was telling the truth and Belphegor intends to use the Crook as a siphon to absorb all the souls and demons of Hell into himself to gain unlimited power. Belphegor sounds the Crook, drawing all of the souls and demons inside of it, but Castiel fights his way through the strong wind the Crook produces and beats the demon to the ground. Belphegor attempts to trick Castiel by pretending to be [[Jack]], but Castiel easily sees through it and [[smiting|smites]] Belphegor, killing him. However, Castiel's smiting burns Jack's corpse into a charred skeleton and destroys the Crook, preventing all of the souls and demons from returning. Castiel is able to climb out of the closing rupture and reveals the death of Belphegor and failure of their plan to an angry Dean. Before the argument can continue, Rowena uses the Death Is an Infinite Vessel spell to draw all of the remaining souls and demons into herself. With a final goodbye to the Winchesters and Castiel, Rowena sacrifices herself to cast Hell's denizens back where they belong before the rupture seals.
In the aftermath, with Rowena's death compounded by the news of [[Ketch]]'s murder, Dean erupts into an argument with Castiel over his actions, blaming everything going wrong on the angel. Castiel insists that Belphegor was too great of a threat and had to be stopped, but Dean states that they could've dealt with him afterwards. Castiel realizes that Dean still blames him for the death of [[Mary Winchester]] and that he is as good as dead in Dean's eyes. Castiel reveals to Dean that his powers are failing which he has been trying to tell Dean for some time, though Dean has always refused to listen. With Jack dead and Chuck gone, Castiel decides that its time for him to move on and leaves the bunker.
===[[15.05 Proverbs 17:3]]===
===[[15.06 Golden Time]]===
Since his departure from the bunker, Castiel takes a vacation fishing in Wyoming, though without much success in fishing. However, he learns of the strange death of a local boy and realizes that it may be a case. Castiel finds [[Sheriff Alden Roy]] to be uncooperative, forcing Castiel to call the bunker to get confirmation of his FBI cover. Though Dean backs him up, he admonishes Castiel for ignoring their calls and voicemails and hangs up on him. Going through the case files, Castiel finds many strange deaths in the area and marking them on a map, finds a good location to search for the culprit.
As Castiel begins his search for the monster, which he suspects to be a [[djinn]], he is joined by [[Melly Krakowski]] whose son [[Caleb Krakowski|Caleb]] has gone missing. Melly leads Castiel towards an abandoned mine that he suspects may be the djinn's lair while he tries to warn her about what they might find while shielding her from the truth at the same time. The two locate Caleb who had escaped the monster who proves to be Sheriff Roy. The djinn tries to shoot Castiel dead, but his angel powers leave him unharmed and his wounds heal right in front of the stunned humans and monster. Knocking Sheriff Roy to the ground, Castiel brutally kills the djinn with several stabs from his [[angel blade]].
After killing the djinn, Castiel dumps his body in the lake and [[healing|heals]] Caleb's injured leg. However, Castiel's failing powers cause him to struggle with healing the minor injury. Though Melly questions his powers, Castiel decides that its better for her and Caleb not to ever understand what happened and thanks her for their time together. Castiel has realized that if he stays, nothing will ever change so he must return to helping people and end his vacation.
===[[15.07 Last Call]]===
:''"Dean, I need you to call me back. Sam is hurt, and I... Where are you?!"''
===[[15.08 Our Father, Who Aren't in Heaven]]===
:''"You know, Michael, I never really liked you. Even when I was just another angel I thought you were too haughty, too... to paraphrase a friend, you had an entire oak tree shoved up your ass. But now? I'm looking at you and I... I just pity you. Because you were never God's Favorite. You were just a part of His story, a tiny part of His story. You weren't even a star. At least Lucifer knew that God can't be trusted. But I guess he was always the smart one. See the truth for yourself."''
===[[15.09 The Trap]]===
:''"You didn't give me a choice. You couldn't forgive me. And you couldn't move on. You were too angry. I left, but you didn't stop me."''
Dean and Castiel try to contact Eileen and Sam before they travel to Purgatory to retrieve a [[leviathan blossom]], however they soon realize that Chuck has captured them. Dean tracks Eileen's cell phone to the Lucky Elephant casino in Milford, Nebraska, but Castiel insists that they need to go to Purgatory. Dean shoots him down, but he yells at Dean for being so stupid as they don't have anything that can hurt Chuck and finishing Michael's binding spell takes priority.
Upon passing through the portal, Castiel states that he never saw a blossom during his time in Purgatory, meaning it's the only flower in the realm. They manage to capture a [[leviathan]] and force it to reveal where they can find the blossoms, which grow out of the soil when leviathan die. He also reveals that [[Benny]] was killed by his fellow vampires after helping Sam and Bobby out of Purgatory. While en route, Dean mourns Benny's death and Castiel remembers how he unleashed the leviathans into the world and continues to regret his past mistakes. Dean says he knows that Castiel is sorry about Belphegor and Mary's deaths, but Castiel clarifies that he is talking about Jack. He tells Dean that he already apologized but Dean refused to hear it because he was too angry to care about his friend. He left, but Dean didn't stop him.
The trio arrive at a leviathan graveyard riddled with blossoms and skeletons. However, the area is guarded by an angel trap. The leviathan reveals that they plan to take them to Eve so she can have revenge for killing her and her alphas. After Dean gets knocked unconscious, Castiel offers to go peacefully in exchange for sparing Dean. They take the angel and destroy the blossoms. Dean wanders around Purgatory to find Castiel, but with only minutes left before the portal closes, he stops and starts praying. He admits that he should have stopped Castiel from leaving, but he didn't because venting his anger was easier than admitting that he was wrong about everything that happened when Mary and Jack died. He says he can't control his anger when it comes out, no matter how much he wants to. He tells Castiel that he does forgive him for everything that happened. He apologizes for taking so long to tell him and hopes he can hear him. Meanwhile, Castiel has located a leviathan blossom and manages to fight off the leviathans and escape. He makes his way to Dean in the nick of time. Dean tries to apologize face to face, but Castiel says he doesn't have to, having received his prayer.
They arrive at the Bunker and start putting the spell together, and Castiel mixes his blood into the mix as Dean cannot carry the Mark a second time. They make their way to Milford to save Sam and Eileen, but Chuck forces Eileen to attack them. They pass the orb to Sam, who, after having seen what would happen if they trap God, drops the orb and allows Chuck to crush it and heal their wounds from [[the Equalizer]]. Chuck makes His leave after Dean tells Him that they'll never give Him the ending He wants.
At the Bunker, Sam explains why he couldn't trap Chuck, and Dean says it's good enough for him. Castiel says that Chuck may be gone, but He'll be back.
===[[15.11 The Gamblers]]===
:''"Agent Watts is working a case in Alaska. This is Agent Lizzo."''
==Castiel in Lore==
