This is all of Castiel's minor relationships from throughout the series.
Castiel and Anna Milton EditThey served together in Heaven in the same garrison, with Anna as his captain before she fell. They were probably close, as Castiel states "we have history together".
Castiel and Uriel are later assigned with the task of killing the then-human Anna. Castiel expresses regret and sorrow for having to do this. The mission fails when Anna gets her grace back and escapes them.
The next time Castiel sees her, he tells her he still has orders to destroy her, but she knows that he won't. She questions whether what he's doing is right, having Dean torture Alastair. She tries to make him doubt his orders but Castiel becomes angry and states that he is nothing like her, and tells her to leave.
Castiel later calls her back and asks her for help on what he should do. She tells him it is time for him to start thinking for himself.
Anna saves Castiel's life during the fight with Uriel by killing the rogue angel. When Anna confronts him about letting Sam out of Bobby Singer's panic room, he betrays her trust and has two angels take her away.
Anna eventually returns to Earth. She resents Castiel for turning her in. Castiel suspects Anna had rejoined the Host though she says otherwise. Castiel stands against her wish to kill Sam Winchester, going so far as to say he will kill her himself if she tries.
This is the last time they see each other before Anna is killed by Michael.Heaven. Castiel was shocked when he found out Balthazar had rebelled and was moonlighting as a crossroads demon.
After Balthazar rescues him from Raphael, Castiel sets him free from a ring of holy fire which enables him to escape the Winchesters. Afterwards, Balthazar assists Castiel in the war in any and every task given, including saving the Titanic (and later re-sinking it).
Their relationship becomes strained once Balthazar discovers Castiel's alliance with Crowley. Unable to stop Castiel himself, Balthazar becomes a double agent for the Winchesters and eventually betrays his old friend, by giving Sam and Dean Castiel's location.
Castiel then sees his friend as a loose end, and decides to lure Balthazar to a location under the guise of talks before stabbing him to death with an angel blade.
Castiel and Bartholomew Edit
In Heaven, Castiel and Bartholomew were in the same garrison and fought together. Bartholomew was in awe of Castiel and his abilities, but after the fall of the angels, sent other angels and rogue Reapers to hunt Castiel down. With the help of a warding tattoo and Sam and Dean, Castiel managed to avoid Bartholomew's attacks, but was later captured by his followers. To Castiel's surprise, Bartholomew greeted him warmly, even hugging him, having apparently put aside his former anger at Castiel. Bartholomew offers Castiel the chance to help organize the angels under his rule and retake Heaven, believing that together they can do it. Bartholomew also offers Castiel the resources to track down Metatron.
However, when Bartholomew tortures an angel and refuses to stop killing even innocent peaceful angels, Castiel refuses to help him, declaring that he wants no more part of slaughtering angels. When Bartholomew attacks him, Castiel is able to overpower his former friend but refuses to kill him. However, when Bartholomew attacks him while his back is turned, Castiel is forced to kill him in self-defense. In the aftermath, Castiel's unwillingness to kill and wanting to do things a different way causes some of Bartholomew's followers to see that there is a different way and decide to follow Castiel instead.
Castiel and Claire Novak Edit
Claire's father Jimmy Novak is the chosen vessel of Castiel. Shortly after Dean was rescued from Hell, Castiel communicated with Jimmy and promised his family safety in exchange for possession. Jimmy agreed. Claire came outside the house just after Castiel entered Jimmy, and was coldly informed that he was not her father. Claire watched Castiel walk away, taking her father with him.
Claire was briefly reunited with her father when Castiel was forcibly removed from his vessel, as shown in The Rapture. When demons attack the family, Jimmy pleads to Castiel to help save them. While Claire is tied up, she is approached by Castiel (presumably in a dream) and asked to assent to possession. Claire agrees, and Castiel defeats some of the demons while possessing her.
Castiel intends to keep using Claire in order to spare Jimmy of the torment of being a vessel, but Jimmy refuses. Castiel accepts Jimmy's decision and returns to his former vessel, leaving Claire and allowing her to return to her mother.
Life for Claire becomes difficult after that. Her mother Amelia goes in search for her husband, leaving Claire mostly in the care of her grandmother and later a Group Home. She becomes rebellious and holds a fair bit of hatred towards Castiel. The two do not meet again until a couple of years later, after Hannah inspires Castiel to go check on the Novaks, only to find what a mess they are in.
Claire is initially hostile, but does admit Castiel has become a slightly better person. Castiel is shown to be protective over Claire. When Claire gets into trouble, Castiel does all he can to save her, acting like a father to her, though Claire does not wish him to act as such. When Claire requests for help in finding her mother, Castiel gets Dean and Sam to partake in the search. This leads to a confrontation with Tamiel and Amelia's subsequent death.
Despite not getting her mother back, Claire finally accepts Castiel, and before departing to go live with Jody Mills, she hugs him goodbye. She takes with her a birthday gift from Castiel, which is a Grumpy Cat toy. She is shown to still have it in Don't You Forget About Me.Purgatory, knowing Castiel needed the souls to win the war in Heaven, and so a secret alliance was formed.
Castiel helped collect creatures for Crowley to experiment upon, while Crowley gave 50,000 souls from Hell in advance. Eventually, Castiel betrayed Crowley and opened the door to Purgatory himself. Thus, their working relationship ended.
Castiel later declared himself the new God, and killed Raphael before deciding to spare Crowley, saying that he had plans for him. Those plans were that Castiel would control the flow of souls going into Hell, and that Crowley could continue to rule there.
When Crowley encountered the insane Castiel, he was furious to find him still alive, and also angry that the Winchesters were harboring him. However, Crowley left him alone for the time being, stating that it would be no fun to kill him in his crazy state. He asked Sam and Dean to call him when Castiel regained his sanity so they could fight.
At this time, Crowley respected Castiel's wishes for him not to harm Meg. This was probably due to the fact they had a common enemy to fight. The Winchesters needed Castiel, and Castiel was fond of Meg.
When Castiel returned from Purgatory, he faced off with Crowley even in his weakened state. Castiel tried to smite Crowley, terrifying the King of Hell into fleeing. Castiel managed to damage Crowley's plans by breaking The Word of God in half, causing Crowley to only get away with one half.
Crowley later captures Castiel, and shoots him in the gut using bullets made from a melted-down Angel Blade, severely injuring him. Crowley had correctly deduced that Castiel had the angel tablet inside of him, and painfully removes it through the hole his bullet made.
In his weakened state, Castiel manages to escape when Crowley leaves him with a single guard. Later, desperate to save Sam from Gadreel, Castiel works with Crowley to allow them to communicate with Sam, and have him force Gadreel out (having gotten the idea from Crowley's torture of Samandriel). As part of the efforts, Castiel had to burn off Sam's anti-possession tattoo so Crowley could possess him.
The plan to use Crowley to save Sam succeeds, and Sam expels Gadreel. Afterward, following Dean's lead, Castiel lets Crowley go as part of their deal.
During the season 10 finale, Rowena casts the Attack Dog spell on Castiel and has him attack Crowley. The demon King however, survives. They do not meet again until Castiel arrives in Hell following a confrontation with Amara. The next time Crowley sees Castiel, he is possessed by Lucifer.
In Hell's Angel, Crowley helps the Winchesters in freeing Castiel of Lucifer. Crowley enters Castiel's vessel, but finds him depressed. His efforts to get Castiel to expel Lucifer fail, and Crowley himself is soon expelled. The two are reunited and working together again after Amara expels Lucifer herself in the season 11 finale.
Crowley and Castiel meet again in The Foundry. Castiel is unimpressed with this unexpected reunion, but their mutual desire to find Lucifer and send him back to his Cage leads to teamwork. They fail however, to find the archangel due to Rowena's intervention, having banished the archangel elsewhere before they could arrive at the former's location.
With the help of Sam and Dean and Vince Vincente's bandmate Tommy, Castiel and Crowley discover Lucifer's latest plan. Although Castiel finds it unfortunate that he has to work with the demon, he and Crowley nevertheless join forces and try to defeat Lucifer before he can murder the fans gathered at a concert. They are both beaten down and left badly injured in the aftermath of trying to foil Lucifer's plan, though they succeed as he is forced to leave his vessel.
Castiel and Daphne Allen Edit
After he was resurrected following an explosive death at the hands of the Leviathans, Castiel was found, naked and by the lake, by a woman named Daphne. For reasons unclear, Castiel had no memory of who he was. Daphne took this encounter as a word from God and took care of Castiel, now named "Emmanuel", and soon married him.
Castiel and Daphne lived a relatively peaceful and happy life for months, during which Castiel re-discovered his ability to heal people and Daphne helped with contacting clients. Eventually, Castiel's acts as a healer attracted Dean Winchester, as well as demons, to their home. Dean defeated the demon who was threatening Daphne and was reunited with Castiel, though Castiel had no clue who he was.
Dean urged Castiel to help his brother Sam who was at the hospital, and Daphne permitted him to do this. After Castiel left, Daphne never saw him again, as Castiel would regain his memories in his mission to save Sam Winchester.
Out of Castiel's three lovers, Meg and April, Daphne is the only one with whom Castiel had a successful relationship, as Meg was killed approximately a year later and April was a reaper tasked with killing him. It is unclear if Castiel remembers Daphne, or whether he cares about her at all.
The archangel Gabriel was Castiel's older brother and the two seem well acquaintanced with one another. In their first onscreen appearance together in Changing Channels, Gabriel was trying to manipulate Sam and Dean into saying "yes" to Lucifer and Michael respectively, but he had to keep Castiel out of the way since Sam and Dean did not know his true identity yet. Gabriel's ability to knock Castiel aside and send him away with ease, as well as Castiel's apparent familiarity with him became one of the two pieces of evidence that gave his identity anyway.
It is unknown how close the two brothers were back in Heaven, but Gabriel is the only one of the four archangels never to make an attempt on Castiel's life, or have a reason to. They do not see each other again after Changing Channels, but an illusion of Gabriel crafted by Metatron does interact with Castiel in Meta Fiction. This Gabriel displays protectiveness, trust and care in Castiel, as most loving older brothers would. Castiel showed trust and concern in Gabriel too until he discovered he was inside an illusion.
Judging by Castiel's relationship with the illusion of Gabriel, it is clear that Gabriel is one of the few angels who actually likes Castiel but, to Castiel's dismay, is dead like many of his loyal friends.
Castiel has never met God, but follows his orders out of faith. He was obedient until Dean began putting doubts in his head as to who was really giving the angels their orders. Castiel had always followed orders to the best of his abilities, believing them to be passed down to him from God.
Castiel eventually rebels against Heaven and helps Dean. In Season 5, he begins to look for God in order to stop Lucifer, using Dean's Amulet, but is severely disenchanted when being led to believe God simply doesn't care about the state of things anymore.
Unlike any angel, Castiel has been brought back to life many times, and he assumes that God himself has revived him. As an apparent reward for his role in averting The Apocalypse, God increases Castiel's power and upgrades him with more power. Later on, Castiel asks for God's help, but God doesn't respond.
Following this failure to get God's notice, and other previous failures, Castiel takes many souls into himself (including the Leviathans), and declares himself the new God. Power drunk but well meaning, he quite possibly becomes the greatest threat that the world has ever known.
God (apparently) resurrects Castiel after the angel dies due to being possessed by the Leviathans. Although God brings him back with his powers intact, Castiel has no memories for some reason. It becomes apparent later that his identity and memories were just buried, and he is able to regain them by vanquishing demons.
Castiel now believes that this and other resurrections are a punishment that gets worse each time, and that if he dies again, God will continue to bring him back for more punishment.
In Don't Call Me Shurley, God confirms to Metatron that he is the one who kept resurrecting Castiel. He tells Metatron "I've rebuilt Castiel more times than I can count" but adds that "look where that got me." Metatron also believes that Castiel is nevertheless God's favorite angel.
As Lucifer's vessel, Castiel becomes aware of God's return and helps in recruiting the angels for God's battle against the Darkness. He remains mostly by God's side following the battle's failure. Castiel sits relatively close to God inside the bar the team gather in while Dean goes on a mission as a ticking time bomb. He notices belatedly when God disappears from the room. Despite being in God's presence for most of the episode, Castiel is not shown to interact with him one-on-one.
Castiel meets the angel Hannah after the angels were banished by Metatron's spell, and lured to a location by a noise. Hannah was the sole survivor of a group of angels who refused to join Metatron's side, the rest were killed by Gadreel. Hannah initially attempts to kill Castiel, but is defeated and chooses to join his side.
When Castiel decides to build his army, Hannah acts as his second-in-command. This alliance is shattered when Metatron tricks the angels into losing faith in Castiel, blaming him for the suicide bombing. Hannah does not rejoin Castiel's side until Gadreel sacrifices himself, proving Castiel's cause to be just. Together they are able to overthrow Metatron and re-take Heaven.
Hannah later assists Castiel in gathering rogue angels. Hannah shows concern for Castiel's dwindling grace, but is repeatedly brushed off. An encounter with the husband of Hannah's vessel convinces Hannah to abandon her vessel and return to Heaven, leaving Castiel to continue the search alone, but also inspire Castiel to find his own vessel's family.
Castiel meets Hannah again in a new vessel when Castiel attempts to break Metatron out of prison. Hannah is unsupportive of this plan, but ultimately fails to stop her friend due to Bobby's assistance from the inside. Castiel meets Hannah for the last time following the rise of The Darkness. Hannah partakes in interrogating Castiel on Metatron's whereabouts, but soon chooses to believe that he does not know. Enraged, Efram kills Hannah. Castiel is left deeply saddened by her death.
They are two angels from Castiel's garrison who appeared in "Reading Is Fundamental", intent on getting their hands on the newly-designated prophet, Kevin Tran. Both angels were shocked to discover that Castiel was alive, since he was thought to have died after he let loose the Leviathans some time ago.
Hester, the new leader of the garrison, was furious with Castel over the genocide of Raphael's followers, which cost Heaven thousands of angels. After delivering a "big, scary speech", Castiel had vanished. Hester wanted an explanation, but soon realized - along with Inias - that Castiel had lost his sanity.
All three were blasted out of their location by Dean before things could escalate. Castiel managed to return to the Winchesters soon after, though after Meg killed a demon near Rufus' cabin, Hester and Inias were able to track them to their new location.
Hester proclaimed that Castiel had fallen in every way possible, ever since the day he rescued Dean from Hell. In a fit of rage, Hester assaulted Castiel until he bled. Inias tried to stop her, insisting that there were few angels left, only to be knocked aside. Hester's assaults were stopped when Meg stabbed her from behind with an angel blade, killing her.
Hester would not be the last angel to desire vengeance upon Castiel, and Castiel himself would come to regret every one of his sins mentioned by Hester, from his tenure as God and later on, his part in helping Metatron banish the angels from Heaven.
Inias, on the other hand, became one of the very few angels to care for Castiel, enough to want to welcome him back to the garrison, though Castiel ultimately declined. What exactly became of Inias is unknown, though Castiel believes his entire garrison has been wiped out.
Ishim, like Anna, was Castiel's superior for a time. In 1901, Ishim convinced Castiel along with a group of other angels that the Seraph Akobel had fathered a Nephilim. The group arrived at Lily Sunder's house and murdered Akobel, while Ishim chose to kill the abomination himself. Although Castiel was not entirely comfortable with the task, he trusted Ishim and believed, for the following hundred years, that he and his siblings had done the right thing.
In 2017, Lily sought revenge against all the angels involved in her daughter's death. Castiel was horrified to learn that Lily's daughter May was an ordinary human being and that Ishim had lied to him, leading to the deaths of many angels and putting innocent blood on Castiel's hands. For a time after their reunion, Ishim seemed to care for Castiel still, despite the latter's involvement in the Fall of the Angels, which damaged Ishim's wings. However, as with Lily, Ishim was possessive, demanding as well as manipulative and tried to kill Dean as he saw Dean as Castiel's weakness. It would be by Castiel's own hands that Ishim met his end, something Castiel had threatened to do to his other superior Anna, but never did.
Aside from Ishim's position as Castiel's superior in both power and rank, it is not clear what their relationship actually was. Ishim seemed to prefer Castiel's female vessel and in 1901, he appeared to trust Castiel as well. The revelation of Ishim's true nature certainly damaged any positive opinion Castiel ever had of Ishim.
Castiel and Jimmy Novak Edit
After Castiel rescues Dean from Hell, he realizes he cannot communicate with the human unless he obtains a vessel. Castiel tracks down Jimmy Novak, a devout Christian and family man who is able to receive Castiel's messages and communicate with him. The two manage to develop a sense of trust but Jimmy's behavior is met with ridicule by his wife.
Forced to work for Castiel, Jimmy assents to possession and becomes Castiel's vessel for months. The experience is rather unpleasant for the human, who feels like he's "being chained to a comet". Castiel does not alter Jimmy's appearance, simply adding a deep voice as the only indicator that the two are not the same person.
Eventually, Jimmy is freed from possession when the angels decide to drag Castiel back to Heaven for rebellious behavior. Sam and Dean discover Jimmy, who informs them that he no longer wishes to have anything to do with angels, his earlier excitement gone due to the torment he suffered, and his desire to be with his wife and daughter again.
Unfortunately, Jimmy's fate was sealed from the moment Castiel first spoke to him, as his status as an angel vessel drew demons to his family, leading to the possession of his wife and neighbors, and an attempt on his life. Jimmy demanded Castiel to rescue his family as part of their deal to gain Jimmy's consent. Castiel obeyed and took Claire as a vessel while smitting the demons holding the family captive.
Castiel was sympathetic to Jimmy's suffering and offered to spare him of the ordeal and take Claire instead, but Jimmy's love for his daughter drove him to take Castiel back, an act which ultimately cost Jimmy's life when the pair were killed by Lucifer. Castiel was given Jimmy's body to use permanently by God, while Jimmy ascended to Heaven.
Years later, Castiel would attempt again to keep his promise to protect Jimmy's family, only to discover that not only had Castiel ruined Jimmy's life, but also caused the break up of the remaining Novaks, with Amelia having gone searching for Jimmy and leaving Claire in bad company. Eventually, Castiel would remedy this situation and find Claire a better home, while Amelia died and went to Heaven, reunited with Jimmy at long last.
When Lucifer rebelled against Heaven, Castiel (a newly created angel at the time) remembers being terrified by the raging archangel. Despite this, Lucifer does know of Castiel and sees him as a brother. When they meet again, which is after Castiel rebelled against Heaven, Lucifer traps him in a ring of Holy Oil. Lucifer tries to persuade Castiel to work with him by listing things they have in common. He also makes it appear as if he is the victim and that his only mistake is loving God too much. Nevertheless, Castiel does not fall for this so Lucifer leaves Castiel in the circle while Meg stays to watch over him so that he doesn't manage to free himself.
The two meet again at Stull Cemetery, where Castiel banishes Michael using holy oil. This enrages Lucifer, who smites Castiel as punishment. God resurrects Castiel, shortly after Lucifer has been imprisoned in his Cage by Sam. For the following two years, Castiel makes certain Lucifer does not escape his prison.
Lucifer does not re-enter Castiel's life until six years after their previous meeting. Sam is trapped in Limbo with Lucifer assaulting him, so Castiel joins Dean in trying to fend off the archangel. it is unclear if Castiel ever became aware of Rowena's attempt to cast a spell to send Lucifer back to his prison. Regardless, the combined effort of the three is not enough to defeat Lucifer.
However, Castiel becomes convinced Lucifer can stop The Darkness, just as he claims, so just before Rowena is finished, he says "yes" to the archangel. Lucifer takes possession of Castiel's vessel, and once again roams the Earth.
How Castiel was treated while used as a vessel is also unclear. When Lucifer attempted to kill Sam in The Vessel, Castiel fought back to keep the archangel from hurting his friend, but gave control back so Lucifer could time travel and save Dean. When Crowley enters Castiel's vessel in Hell's Angel, he finds that the angel is suffering from depression, and is likely got "hooks" inside him. Castiel tells the demon that Lucifer mostly just leaves him alone.
Lucifer remains mostly in control afterwards, though he does not seem to prevent Castiel from discovering what is going on outside, as Castiel becomes aware of God's return and the battle God helps them devise. Lucifer allows Castiel brief control of their shared vessel when the angels choose not to listen to the archangel, in hopes they would instead listen to Castiel.
The battle ends in God's defeat. Lucifer attempts to rescue God from Amara's clutches, but is knocked aside and ripped from his vessel. Castiel wakes up shortly after, unaware of his older brother's whereabouts. He later informs Dean that he was stupid for saying "yes" and that he was only trying to help.
In The Foundry, Castiel discovers traces of Lucifer's whereabouts and, still feeling guilty about releasing the Devil from his prison, decides to go after him alone. Crowley soon joins in since he knows more about Lucifer's current vessel. The two manage to track Lucifer down to a cabin in the woods, but fail to find him since Rowena had banished him away earlier.
When Lucifer announces his plan to host a concert in Los Angeles, Castiel relies on Tommy to give him the location. He, Sam, Dean and Crowley track Lucifer down to Meteor Club to prevent the slaughter of Vince's fans. Castiel joins Crowley in fighting against Lucifer. The archangel taunts Castiel about his lack of self-worth, noting how he knows this since he was once inside the angel, and proceeds to beat both him and Crowley to the ground. Enraged, Castiel follows Lucifer to the stage and tries to attack Lucifer again, only to be disarmed by telekinesis.
Alongside Dean and Sam, Castiel listens to Lucifer's declaration that he will destroy God's toys while making the three of them watch, since he finds the act of slaughtering to be "fun". Castiel is disgusted by this and intends to stop Lucifer anyway he can. He joins Sam and Dean in hunting down Lucifer who has taken possession of the President. Castiel is mortified when he discovers Lucifer has also impregnated said's president's mistress, Kelly Kline, and makes an effort to try and convince Kelly to abort the child. While Lucifer is finally defeated, Castiel loses sight of Kelly after she escapes his custody, thus sparing the child.
Castiel and Mary Winchester Edit
Castiel's thoughts and opinions on Mary during his time with Dean are non-existent, though in Season 5, Castiel does assist the brothers in time travelling to the past in order to protect Mary from his former captain turned-enemy, Anna Milton. As he is weakened by the journey, Castiel does not get to meet Mary.
Similar to how Mary predicted, Castiel is an angel who does his best to watch over Dean. He visits Mary's grave briefly when he, Sam and Dean bid Dean farewell during Dean's suicide mission in Season 11.
Castiel and Mary meet face to face in Season 12, when Castiel returns to the Bunker after being banished by Lady Toni Bevell. There, he encounters a hostile Mary, but also Dean, whom he thought had died in his mission. Dean introduces Castiel to Mary, describing him as an angel with a halo, which Castiel denies having. Despite their turbulent meeting, Mary comes to accept Castiel as part of the family/team, and together they go and rescue Sam from the British Men of Letters.
Castiel and Mary share a mutual understanding in what it is like to live in a place one is unfamiliar with. Despite years of living as a rogue angel and a family friend of the Winchesters, Castiel does not feel like he truly belongs, similar to Mary, who has lost 33 years of her life and cannot cope with the loss of her husband and the change in her sons. Castiel insists Mary does belong, but she kindly brushes him off.
As of yet, both Castiel and Mary have split from Sam and Dean. Castiel seeks to undo his mistake of freeing Lucifer by capturing him, while Mary seeks to find a means to adapt in this strange new world by being on her own.Lucifer Rising, the two have been enemies. Before Castiel rebelled, it is believed Castiel probably respected Raphael due to rank. After being killed, Castiel seeks out Raphael in order to question him on God's whereabouts. Dean assist him on this task.
Their hatred for one another escalates when Raphael decides to restart the Apocalypse following its collapse, which Castiel refuses to let happen. Through a deal with Crowley, he starts a civil war in Heaven. The battle ends in Castiel's favor after he manages to trick Raphael and absorb the souls of Purgatory for himself.
He kills Raphael in a similar manner he himself was killed two years prior.
Castiel formally met Rowena when Sam gathered the two of them - plus Charlie - to take part in a secret task of freeing Dean from the Mark of Cain. Both Castiel and Rowena showed dislike in each other almost instantly. He was essentially guarding Rowena while watching over Charlie. At Charlie's request, Castiel eventually relocated Rowena to a separate room, only to realize Charlie had fled during that time. Charlie subsequently died after getting cornered by a Styne, but the task continued thanks to Charlie's notes.
Rowena completed it by performing the spell that removed the Mark from Dean. With no obligations left, Rowena cast the Attack Dog Spell on Castiel, forcing him to viciously attack, and attempt to kill Crowley. After he had seemingly completed this task, side-effects of the spell still sent Castiel into fits of blood-thirsty rage, leading him to kill several people. It wasn't until Sam threatened to kill Rowena was Castiel finally freed from the spell.
Later on, Rowena formed an alliance with Lucifer, intent on helping the archangel escape his prison. This led Castiel into confrontation with his older brother, and in a fit of despair, he consented to possession. The payback was Rowena's own, brief demise.
From then on, Castiel and Rowena only interacted when called upon by Sam and Dean to help them deal with a problem. Their next alliance was assisting God in his plan to re-imprison the Darkness. Another alliance was formed in an effort to lock up Lucifer, to whom Rowena no longer held any loyalties, and whose freedom Castiel blamed on himself.same garrison. Castiel, for the most part, was Uriel's superior, and stopped Uriel from hurting Sam and Dean many times. Uriel had a strong dislike of human beings, calling them "mud monkeys".
Uriel went rogue and tried to convert Castiel to his own plan of helping Lucifer destroy mankind. Castiel refused, and the two sworn rivals then engaged in a bitter fight to the death. Just when it looked like Castiel was about to be defeated and killed, former angel Anna Milton came up and stabbed Uriel, killing him and saving Castiel's life.
- Bobby and Castiel - Castiel and Bobby's Relationship over the years.
- Meg and Castiel - Castiel and Meg's Relationship over the years.
- Castiel and Sam - Castiel and Sam's Relationship over the years.
- Dean and Castiel - Castiel and Dean's Relationship over the years.