The Big Guy: Subverted — Dean is the shorter of the duo, but is also the bruiser of the two.
Blessed with Suck: Dean is totally immune to the hunger-inducing powers of Famine, which seems pretty cool. Except that Famine points out it's due to the fact that Dean is so dead inside that no form of self-indulgence would fill the void.
Break the Cutie: Repeatedly. Up to Eleven. Every single time things start to work out for him, he gets broken. And this has been going on for a loooooong time. In fact, an alternate title for this show could be "How to Break Dean Winchester" and you couldn't fault it, particularly from Season 2 onwards.
Deus Angst Machina: The stunning amount of bad things that happen to Dean are starting to amount to this. The poor guy hasn't caught a break since Season 3.
Human Mom Non Human Dad: Dean is part of an inverted example in "The Slice Girls". Dean sleeps with an Amazon, she has his daughter in a few days and the daughter grows into teenage years quickly. She then tries to kill Dean, who hesitates to fight back, but Sam shoots her dead and saves Dean.
It's All My Fault: If anything can be slightly linked to him in any way, expect him to shoulder the burden and expect that burden to break him. Just see how the whole back-from-Hell thing worked out for him in Season 4.
Single Tear: Has a slight tendency to cry like this each time Life kicks him in the nuts, which happens a lot. Ironic, given that he's the one who demands "No chick-flick moments" in the pilot.
YED taunted Dean with this possibility in the Season 2 finale.
More than implied in Season 6. Confirmed in "Family Matters" (no, not the sitcom), when Castiel examines him and discovers that Sam no longer has a soul. He gets better (somewhat) in "Like a Virgin," only for it to get reversed by Castiel in the Season 6 finale.
Cartwright Curse: "Have you forgotten the average lifespan of your hook-ups?" So...
Fatal Attractor: His love interests have included a kitsune, a werewolf, and a demon, and those are just the ones confirmed to be supernatural. Dean uses this trope to deduce that the girl Sam is sexing up is the siren making people kill their loved ones in "Sex and Violence." Suprisingly, he's wrong.
Genius Bruiser: He was a straight-A student, a Mathlete, attended Stanford University on a full scholarship before the show started, and is often involved in the research part of hunting. This has never stopped him from kicking demon ass repeatedly.
Nice Job Breaking It, Hero: In his mission to kill Lilith for vengeance in Dean's death and trip to Hell, as well as to stop her from freeing Lucifer, he pretty much turns into a monster himself and ends up unwittingly breaking the final seal binding Lucifer to Hell by killing her.
Took a Level in Jerkass: In Season 4 and Season 6. Oh so very much in Season 6. (But only in the first half of S6, and that's because he was The Soulless at the time.)
Dead ex Machina: In "All Hell Breaks Loose: Part Two." Subverted in "Long-Distance Call" - it was a monster pretending to be him.
Deal with the Devil: He makes one with Azazel in the Season 2 premiere to save Dean.
Disappeared Dad: Often left his children alone to go hunt, so Dean had to take on an almost parental role and help raise Sam. In fact, his absence actually kicks off the plot, as it's why Dean goes seeking Sam out at Stanford. Not to mention Adam, who, John rarely saw, although in this case it's more forgivable, since John didn't know he existed until Adam was twelve.
Heroic Sacrifice: Sacrifices his life in exchange for Dean's. Dean, however, is not grateful.
Papa Wolf: Uses one of his precious Colt's bullets to protect his sons, gives up his chance of revenge by giving Azazel the Colt and going to Hell in order to save Dean, and eventually crawls out of Hell to tear Azazel from his meatsuit when the demon was taunting and about to kill Dean. Say what you like about the guy, but he does love his kids.
Used to Be a Sweet Kid: John's not a villain, but it's still depressing to see how happy and innocent he was in the teaser of the pilot before Mary died and in the episodes where his sons travel into the past.
Death Glare: When a time-traveling Dean and Sam interrupt former-hunter Mary's normal lifestyle, she gives them quite a deadly glare.
Hot Chick with a Dagger: Watch how she uses the angel sword/dagger in her fight against Anna in "The Song Remains the Same." She definitely knows how to handle weapons.
Funnily enough, in that moment she actually looked eerily like how Sam wields pointy objects. Lamarck Was Right?
Hot Mom: Dean himself notes this in "In the Beginning."
"Sammy, wherever you are, Mom is a babe. I'm going to Hell. Again."
Violently Protective Wife: She was not happy when Anna tried to kill John (along with Mary herself) to erase her sons' existence. Viewers got to see a nice fight between Anna and an angel-blade-wielding Mary.
Dead All Along: In "Jump the Shark," the "Adam" the Winchesters meet is a Ghoul using his form. How did he get into that form? By eating the real Adam.
Fate Worse than Death: Ultimately Adam ends up locked in Hell with Satan and Satan's big brother, with no hope of escape, seeing as how any of the characters who could free him either don't care about him or are dead.
The Unchosen One: Unintentionally. By saying "Yes" to Michael and being the vessel in Dean's place, he effectively proves that Michael's speech to Dean in "The Song Remains the Same" about how Destiny cannot be screwed was basically Michael talking out of his ass.
The Unfavorite: So Dean spends the first half of Season 6 trying to get Sam's soul back, because it's left in the cage with Michael and Lucifer, after Castiel removed Sam's mind and body almost immediately. When Dean first makes his deal with Death to get Sam's soul back, he tries to get Adam out as well. Death, however, refuses and forces Dean to choose between the two; Dean chooses Sam.
Badass Bookworm: Sam is great at research, but Bobby can run circles around anyone when it comes to finding answers. Helps that over the years he's amassed a very impressive collection of books on the supernatural to stock in his library.
Crazy-Prepared: He slips all his guests holy water in case they're demons, and he made and hid copies of all his irreplaceable books, just in case they were ever destroyed. Bobby lampshades this in "Let It Bleed" by calling himself "a paranoid bastard."
Taken to an insane degree when Bobby temporarily traps a reaper in "Death's Door" with ingredients found in his memories.
Only Sane Man: He's the only character who can take a step back and see the bigger picture. Up to a certain point anyway; he starts to lose his perspective towards the end of Season 4.
Parental Substitute: Bobby makes it very clear, to him, Sam and Dean are his boys.
The Reliable One: As close as you can get to it in this show, anyway.
Revolvers Are Just Better: His handgun of choice is a Colt Peacemaker. He may just have a fondness for "Cowboy" guns, as he also uses a lever-action rifle.
Self-Made Orphan: He shot and killed his father when he was a kid and buried the body by the shed, in order to protect his mom from getting further abused.
Bad Guy Bar: Was the boss of the Roadhouse until it was destroyed in the Season 2 finale. Granted, it was a place for hunters to meet, but not all of them are really good.
Disappeared Dad: Bill Harvelle, who got killed on a hunt with John Winchester, who may or may not have gotten him killed. When Jo learns about the spoiled part, it put a strain on her relationship with the Winchesters.
Knife Nut: Carries her dad's knife with her because she wants to feel close to him, and says she was known as the "freak with the knife collection" at school.
Like Brother and Sister: YMMV, but this it how her interactions with the Winchesters came off to some people, with Jo in the role of a mouthy little sister.
Put on a Bus: For Seasons 3 and 4 (because of the fans' hugely negative backlash towards her character).
Unrequited Love Switcheroo: With Dean. Okay, not really. She still has feelings for him, but turns him down when he makes advances on her in "Abandon All Hope..." because she has more self-respect than to give in.
Not so Different: Well, aside from Lenore, Castiel, Bobby John, Lucky, Eleanor and whatever rare sympathetic monsters they find, Dean and Sam aren't much better than Gordon at treating or thinking supernatural creatures as human-like beings who have their good and bad sides. Dean takes it Up to Eleven in Season 7 by killing a Mommy Monster who was killing again to heal her sick child under the pretext that "she would just kill again" (basically the same excuse Gordon gave to try and kill Lenore), right in front of the child and promising to kill said child if he killed too. Oh, and Sam was the same in the previous season, but only because he was soulless.
All a Part of The Job: Rufus gives this kind of speech to Dean, by way of pointing out that regardless of whether or not Dean gets out of his crossroads deal, his best hope is to end up like Rufus (i.e., bitter, secluded and alone, but alive rather than dead).
He got killed off three seasons later, btw.
Ambiguously Jewish: He did say "I know what I want for Hanukkah" about Bobby's digger.
In "And Then There Were None," at Rufus' funeral, Bobby confirmed he was Jewish, kosher aside.
Magical Negro: Not in that he had powers beyond being a Badass (formerly) retired hunter, but in that he had a ridiculous amount of helpful connections who helped him to do everything from digging up Bela's dirty past to not only digging up intel on Crowley and his human life, but finding out that he had a son, what happened to said son, and where the artifact Bobby could use to summon said son's ghost was...and then successfully stealing it and hiding it from the police. Somewhat averted in that his motivations weren't really selfless as much as utilitarian.
Justified on the connections and knowledge part: all of the older generation of hunters seem to be crazy prepared (see: Bobby) and extremely well connected (see: Ellen) simply by virtue of having been in the job for some years.
Bobby: (on the phone) Suck dirt and die, Rufus. You call me again, I'll kill ya. (hangs up)
Dean: What's up with Rufus?
Bobby: He knows.
In "And Then There Were None," Bobby says that he and Rufus used to be as close as Sam and Dean until something happened in Omaha. No real details are given, except that Rufus lost someone he cared about and swore to never forgive Bobby for it.
Police Brutality: At one point in "Weekend at Bobby's," Rufus is heard over Bobby's phone, shouting, "That is excessive force, officer! I know my rights!"
Deal with the Devil: Turns out he made one with Crowley to bring Mary back. Nothing ever comes out of it, since Samuel dies (again) in "And Then There Were None."
Grand Theft Me: His possession by Azazel and the Khan worm in both of the episodes where he died.
Thicker Than Water: To Samuel, not so much. When he tries to pull this excuse on Sam and Dean, they tell him exactly how full of crap he is.
To be fair, though, he does have a point. He met Dean once before he died (the first time), got possessed by Azazel, and forced to kill himself and his wife, all because of Dean's attempt to intervene and change the past. Samuel spent a year hunting with a soulless, amoral version of Sam whose cold-blooded actions apparently disturbed Samuel, if "Live Free or Twihard" and the flashbacks in "Unforgiven" are an indication. Even so, Samuel apparently did care about his grandsons since he did make attempts to help them in Season 6 as long as it didn't intefer with his deal with Crowley like when he gave Dean the cure for vampirism. When it came down to it, though, he loved and missed Mary, his daughter, more than he was willing to help Dean and Sam, grandsons he barely knew and were admittedly kind of dickish themselves at that point.
What an Idiot: Lampshaded by Bobby while he was on the other end of a phone call with him.
Bobby Better drop a dime to the FBI. * hangs up* *FBI Line rings* Bobby Willis, FBI. (Beat) No, Garth, not me-the-FBI, the REAL FBI! How are you still alive?!
Badass: Let's put it this way—he can bend realty, warp time, and is the only character in the entire series to make Lucifer doubt himself.
Badass Boast: "They call me Gabriel." It's the way he says it, almost as if stating "you have no idea with who you are messing with." His cold and steely smile really helps the Badass factor.
Disproportionate Retribution: The crimes he commits in his first episode are typically on Asshole Victims. Problem is, it's hard to justify murdering a guy just for having an affair or testing on animals. In his second appearance, he hurls a man into a wormhole just for doubting they exist. Jerkass.
Humans Are Flawed: His speech before Lucifer kills him could be the text written on that page.
Rousseau Was Right: He commends us for being us and our ability to never give up, no matter the adversity we may face. Which is far more impressive in his eyes that anything the angels can come up with.
Jerkass: Definitely in his first and second episodes.
Jerk Ass Has A Point: Yes, the time loop was cruel; Sam and Dean constantly sacrificing themselves for the other is terrible. Sam did need to accept that he couldn't save Dean.
Karma Houdini: He's a cold-blooded murderer in his first two appearances and gets away twice. He then Heel Face Turns and all is forgiven before he's killed by Lucifer, making him one in the sense that, while he dies, he never receives any comeuppance for his previous behavior.
Karmic Trickster: How he likes to think of himself. He goes way too far, though.
Neutral No Longer: Gabriel spent untold millennia hiding from his family, and wants nothing to do with the imminent apocalypse (except when he tries to bully the Winchesters into accepting their roles and "getting it over with"). After a chewing-out from Dean, Gabriel does finally decide to stand up to his family by confronting Lucifer. Though he doesn't survive, he does strike a nice blow for Team Free Will.
Trickster Mentor: To Sam and Dean. To everyone else, he's just an ass.
Video Will: He leaves one for the Winchesters. In the form of a porno.
Well-Intentioned Extremist: He put Sam through near-endless trauma in his second episode because he was genuinely trying to teach him a lesson: Constantly sacrificing himself to save Dean is only going to make things worse for both.
Anti-Hero: Began as a Type III (his first appearance; if you're on the side of good, you need not fear him), but is now definitely a IV. At the end of "The Man Who Would Be King," it's implied he's about to tip straight into Type V.
And in the Season 6 finale, he goes straight into Villain Protagonist territory.
And then in the Season 7 premiere, he realizes the error of his ways and pulls a Heel Face Turn, only to get taken over by the Leviathans.
Asexuality: He gets nervous at brothels (though this is arguably due more to him being in a "den of iniquity"), displays curiosity about human sexuality, and has even tried kissing, but for the most part, he's portrayed as asexual.
However, his future self from a post-appocalyptic world seems to love orgies.
Technically that's not his "future self"—something quite obvious as of the end of Season 6—but either an alternate future self or just part of an illusion Zachariah came up with. Why Zachariah chose to have him adopt that personality to show Dean is still a mystery.
In episode 7.21, "Reading Is Fundamental", he admits finding it boring to watch over humanity at times - the wars and sex got repetitive.
Asskicking Equals Authority: A subversion at first, as he seems to be fairly low-ranked despite how much ass he kicks. As the series goes on, he becomes less powerful and a traitor, then loses his angelic status entirely. BUT THEN, after standing up to both Michael and Lucifer, he gets revived by God (again), more powerful than ever. He then returns to Heaven as the "new sheriff in town," as Michael, Lucifer and Gabriel are all out of the picture, and eventually ends up having to deal with the remaining archangel, Raphael.
The Atoner: For his actions in Season 6 and going off the deep end as God after he regains his memories mid-way through Season 7.
Badass in a Nice Suit: Though being an angel possesing a human body, his stance and body language is way off, preventing the trope from being used to full effect. See also Unkempt Beauty below.
Though he seems to have regained his faith in God after being resurrected a second time in "Swan Song."
Scratch that last point; he's become even more broken, as revealed in "The Man Who Would be King"—he's working with Crowley, spying on the Winchesters, losing his faith in God, and doesn't know what to do.
Brought Down to Normal: As of "Two Minutes to Midnight." But this gets reversed in the fifth season finale.
This also happens to him in the Bad Future of "The End."
Chaste Hero: This trait was completely absent in his future self in "The End", however.
Cloudcuckoolander: Taking on Sam's pain has apparently caused his personality to change into this. For perspective, he will occasionally ask someone to "pull his finger" and tried to play a game of Sorry! while having a serious conversation with Dean.
Corrupt the Cutie: No one in this show is going to pass up the chance to corrupt a virgin angel with a conscience. Just ask Dean, Meg, Ellen, Jo, Balthazar, Lucifer, etc.
Deadpan Snarker: He actually gets better at sarcasm the longer he spends time on Earth.
He has also learned to be very subtle about it:
Castiel: Sam, Dean, I have to get back.
Dean: You're leaving?
Castiel: I'm in the middle of a civil war.
Dean: You better tear the attic up, find something to help Sam.
Castiel: Of course. Your problems always come first.
Deal with the Devil: He makes one with Crowley to find Purgatory and gain the souls there.
Demonic Possession: It isn't exactly stated whether Castiel himself got taken over from within by the Leviathans at the end of "Meet the New Boss" or whether they just hijacked control of his vessel, Jimmy Novak. Either way, Castiel clearly wasn't in control anymore, especially considering the change in voice from a deep monotone to one that sounds more like an insane Misha Collins.
Deus Exit Machina: Even as a low-ranked angel, he was way too powerful, forcing the writers to turn to this trope (usually using the angel-banishing sigil). This was a major reason his appearances were mostly cameos in Seasons 4 and 6.
Did You Just Flip Off Cthulhu?: His line to Raphael in "Free to Be You and Me" as he and Dean are leaving the house where Raphael is trapped inside a ring of holy fire.
Raphael: Do not leave me here, Castiel. I will find you.
Castiel: Maybe one day. But today, you're my little bitch.
It's technically Heel Face Revolving Door from his very first opinion to the last - season 4 already had him switching allegiance several times.
As of "The Born-Again Identity", it looks like Cass is back to Face.
The Extremist Was Right: His plan to team up with Crowley to find Purgatory, then crack it open and absorb all of the souls inside in order to gain enough power to defeat Raphael. Well, itworked, but...
Though in the last episode of Season 5, someone (presumably God) granted him full angel status once again, and he became in charge of keeping Heaven whole.
In Season 6, it became worse. See Broken Angel above.
The Fatalist: All angels take this view; Castiel was the first to avert it.
Heroic RROD: The stress of containing the souls of Purgatory (and the Leviathans) causes his vessel to start decaying and nearly kills him.
Hero of Another Story: In Season 6, after the Apocalypse was over, Castiel was in charge of trying to hold Heaven together and leading his own faction of angels against Raphael and his followers, who were still hell-bent on re-starting the Apocalypse while Hell was in disarray. Frankly, the depiction of such a war would've been beyond the writers and the special effects team, so it took place mostly off-screen.
I Did What I Had to Do: As of Season 6, he's doing/done a lot of things he'd rather not do, but finds he has no choice, since he has to lead half of Heaven against the other half in a bid to prevent Raphael from re-starting the Apocalypse. He also kills another angel, despite saying he doesn't want to, and even pleads with the angel beforehand.
He also takes this attitude in "My Heart Will Go On" when Fate calls him out on having Balthazar alter history in order to create thousands of new souls to back his side of the war.
As of "The Man Who Would Be King," this has been taken to a whole new level.
Knight Templar: What he's become in Season 6, in regards to the War in Heaven. To the point that he's working with Crowley, of all people.
Lack of Empathy / No Sympathy: Castiel may be one of the few angels with a sense of ethics and he might tend to be portrayed as a Woobie (especially in fandom), but the fact that he's an angel first and foremost means that he doesn't have the kind of empathy allowed to humans. This allows him to think little of killing children, wiping out entire towns, and murdering his own kin.
After Dean tells him that he and Sam have been murdered in "Dark Side of the Moon":
Castiel: (flatly) My condolences.
Limited Wardrobe: And how—Cas has had the same tie-and-trenchcoat ensemble since his debut in Season 4.
Parental Abandonment: The main reason for his fall to Earth in Season 5. God is still missing in Season 6, but Castiel continues to follow Him by leading on side of a civil war.
Rebel Leader: Seems to be his role in Heaven circa Season 6 against Raphael, and the main reason he's not been around too much.
Redemption Equals Death: Subverted. At the end of the Season 7 premiere, Castiel tries to fix everything he's screwed up as well as trying to make amends with the Winchesters before he dies. However, he's unable to stop the Leviathans and it later turns out that he survived the encounter.
Sealed Good in a Can: Since he had absorbed Sam's insanity, he was residing in an asylum, waiting to be brought out.
Semi Divine: In Season 5, after rebelling against heaven to help the Winchesters save the world from the upcoming apocalypse, he steadily loses his divine power until he's basically human by the end of the season.
Slasher Smile: Oh boy. Happens twice in the premiere of Season 7, once before he starts a massacre, then again to show that, yes, Castiel is pretty much gone.
Though it's implied in that first case — and outright stated in the second — that it was the Leviathans doing the smiling.
Someone Has to Die: A non-lethal version in which Castiel decides to make amends for busting Sam's wall by absorping his Hell memories into himself, restoring Sam's sanity and ending up in the nut house as a result. Well, you break it, you buy it...
Straight Man: He takes Bud Abbott's deadpan shtick to a whole new level because he usually has no clue what the joke is or even that there is one, which makes him come off just as hilarious as Dean. Highlighted by having a Bizarro future version of him be mucho mellow.
Tragic Hero: Begins pretty much as soon as he shows up, and reaches completion in "The Man Who Would Be King," which intentionally presents him as such, even identifying the Fatal Flaw of Pride and showing nearly all of his slide into darkness.
Unkempt Beauty: The stubble, wind-blown hair, loose tie and hobo trenchcoat shouldn't be that attractive, but on Cas, it works, so much so that he's right up there with Dean as the most fetishized character in the fandom.
Utopia Justifies the Means: After becoming God, he slays Raphael's followers and starts going after sinners on Earth.
We Have Reserves: Crosses over with Fridge Horror. In the Season 6 finale, Castiel backstabs Crowley and sends him away. When Crowley returns with Raphael in an Enemy Mine situation, he forces Castiel to leave, taking the Real!Blood with him. They discover too late that Castiel swapped the blood beforehand. However, this meant Castiel knew Crowley would return with a vengeance, and still put up his fellow angels as guards in the warehouse. He knowingly sacrificed his own men in his bid to become God. A far cry from when he tried to teach angels free will.
What the Hell, Hero?: He's working with Crowley, lying and scheming behind the Winchesters' backs, ready to sacrifice human souls for his goal, and okay with changing history such that 50,000 people die horribly. At any rate, this is definitely what Sam and Dean are thinking.
Wolverine Publicity: Especially in Season 6, where he's given his own solo TV bumper and publicity stills alongside the Winchester brothers, despite having less than 50 minutes of screentime throughout the entirety of the season.
You Are in Command Now: After the averted Apocalypse and the deaths/imprisonments of the archangels, Castiel finds himself going from a foot soldier (though one in charge of other angels like Uriel) to the acting "sheriff of Heaven", though he was challenged by Raphael, the only remaining archangel.
Scary Black Man: This seems to be his default vessel choice, as seen in "The Song Remains the Same."
Though it makes sense, since being the vessel for a specific angel runs in certain bloodlines. The vessel in "The Song Remains the Same" was probably the present-time vessel's father or uncle or something.
I was under the impression that they were the same guy; the present-day vessel was middle-aged, while the vessel in "The Song Remains the Same" looked to be about twenty-something.
I always thought angels keep their vessels pretty status quo...like how they don't need food or sleep, so I assumed they also wouldn't age.
Laser-Guided Amnesia: After she ripped out her grace and was reborn a human, she still apparently remembered who and what she really was, to some extent, since she said that her human father wasn't really her dad and believed that her real father (God) was going to kill her when she was a little girl. Therapy helped her repress her memories of being an angel until Pamela used hypnosis to make her remember.
There's also an angel named Haniel/Anael in Jewish mythology. Said angel is powerful and high-ranking enough to be considered an archangel and is associated with the planet Venus (which is supposed to represent love and beauty). Hmm. Which angel do we know who is Badass, Castiel and Uriel's boss, pretty in human form, and Dean's Love Interest?
Stealth Hi/Bye: Does quite a few of them, including one while Dean is driving:
Anna:(suddenly appearing in the backseat) Hey, guys.
Dean: Ah! (jerks steering wheel, but manages to get the car under control)
Reality Warper: Never confirmed outright, but Dean speculates that the "future" that Zachariah sent him to was either a hallucination or a pocket universe that the angel created.
Baldur: You think you own the planet? What gives you the right?
Lucifer: (sticks his arm through Baldur's chest, killing him) No one gives us the right; we take it.
Bad Boss: He created the demon race, but he has no compassion for his creations despite how much they admire him. They're just Cannon Fodder that will be eradicated along with the humans.
Berserk Button: "No one dicks with Michael but me." Cue Castiel exploding into a bloody mess.
Fantastic Racism: Towards humans, demons, and pagan gods. In fact, the only group he shows any compassion for are other angels, trying to tempt Castielinto joining him at one point.
A Form You Are Comfortable With: Poses as his vessel's (Nick) dead wife in a dream to gain permission to possess him, and assumes Jessica's appearance the first time he and Sam "meet".
"You know, I never understood you pagans. You're all such...petty little things. Always fighting, always happy to sell out your own kind. No wonder you forfeited this planet to us. You are worse than humans. You're worse than demons. And yet you claim to be gods! (kills Mercury) And they call me "prideful.
Knight Templar: Somewhat. Lucifer viewed humans as murderous apes who ruined planet Earth, which he referred to as God's last perfect masterpiece. His Humans Are Bastards belief, as well as his self-centered, self-righteous personality, cause him to rebel against God and turn a human into a demon (Lilith) to prove his point about the evil inherent in them.
Limited Wardrobe: Though he had enough sense to change out of his vessel's PJs, he wears the same costume in all his appearances. Wedding ring included.
Manipulative Bastard: Uses Nick's pain of losing his family to gain control of him.
In "Repo Man", it turns out that he's been appearing to Sam throughout the entire season. Finally, he uses Sam's concern for a missing Dean to his advantage, at which point Sam stops ignoring Lucifer. At the end of the episode, Lucifer states that now Sam can't make him go away.
Mind Screw: Claims to be pulling one on Sam in the Season 7 premiere.
More than Mind Control: Has used this to successfully gain control of Nick and in another episode, he attempted (but ultimately failed) to recruit Castiel.
(In "Sympathy for the Devil"):
Lucifer: This is your choice...You people misunderstand me. You call me "Satan" and "devil", but do you know my crime? I loved God too much. And for that, he betrayed me — punished me. Just as he's punished you. After all, how could God stand idly by while that man broke into your home and butchered your family in their beds? There are only two rational answers, Nick — either he's sadistic, or he simply doesn't care. You're angry. You have every right to be angry. I am angry, too. That's why I want to find him — hold him accountable for his actions. Just because he created us doesn't mean he can toy with us, like playthings.
Nick: If I help you...can you bring back my family?
Lucifer: I'm sorry. I can't. But I can give you the next best thing. God did this to you, Nick. And I can give you justice. Peace.
(In "Abandon All Hope"):
Lucifer: "Castiel. I don't understand why you're fighting me, of all the angels...I rebelled, I was cast out. You rebelled, you were cast out. Almost all of heaven wants to see me dead, and if they succeed, guess what? You're their new public enemy number one. We're on the same side, like it or not, so why not just serve your own best interests? Which in this case just happen to be mine?"
Not so Different: Invokes this trope with Sam in "Abandon All Hope."
(to Sam) "I was a son, a brother—like you. I had an older brother whom I loved, idolized. And one day I went to him and begged him to stand with me. But Michael...Michael turned on me. Called me a "freak," a "monster." And he beat me down. All because I was different. All because I had a mind of my own. Tell me, Sam—any of this sound familiar?"
Satan Is Good: Subverted. He sincerely wants you to think this, and in his first few episodes at times, you might even be tempted to believe him, but ultimately he's an egotistical monster and was once referred to by Death himself as a child having a cosmic temper tantrum.
Soft-Spoken Sadist: He's very calm, cool-headed, and acts in a casual, gentle and polite manner. That doesn't stop him from torturing and killing to get what he wants.
Torture Technician: He took an innocent human and tortured her until she lost her humanity and became the first demon, Lilith. He's also been torturing Sam while he was in Hell and also after Sam had escaped from Hell.
Villains Never Lie: "Contrary to popular belief, I don't lie. I don't need to."
Xanatos Gambit: Lucifer's trying to summon Death and use him as a pawn. While Sam is trying to stop him, Lucifer says that Sam could just say "yes" and end this conflict. Either Lucifer will get Sam to be his vessel (one of his main goals) or he'll just go ahead and use Death (as well as the other horsemen) to bring destruction on Earth.
By the season finale, Lucifer actually gets to use Sam as his vessel just like he had predicted.
Yandere: "I was punished for loving God too much" and "Because I loved Him" (the reason he was cast down by God, or so he claims...)
Arch-Enemy: To Castiel in Season 6, with them leading opposite sides of Heaven's civil war. Though one can argue that their feud went back to Raphael's first appearance in Season 5.
Authority Equals Asskicking: One of the four top dogs in Heaven, his mere presence on Earth caused a massive thunderstorm that blacked out the entire Eastern Seaboard of the United States. For a healthy dose of Fridge Horror, he was not the most powerful archangel, so who knows what Michael is really capable of...
Badass: He might've been a grade-A Jerkass, but the sheer level and magnitude of his powers was like no other being seen in the series, ironically looking far more impressive than Michael, the strongest archangel in Heaven, and tying with Lucifer as the most visually powerful and impressive of the archangels.
Blow You Away: Father Reynolds, while administering Last Rites to Father Gregory's spirit in "Houses of the Holy," called Raphael "Master of the Air." Later, when Raphael appeared to Dean and Castiel on Earth, an incredibly powerful storm was blowing outside, and increased with intensity as the scene went on, eventually beginning to destroy the house they were standing in.
Gender Bender: In "The French Mistake." Or as close as gender-less being as come to this.
A God Am I: A shade of it; in Season 6, when Castiel asks Raphael how the angels can justify trying to re-start the Apocalypse, he says it's what God wants. When Castiel asks how he knows that, he says it's because it's what he wants. At the very least, he's appointed himself as the ultimate interpreter of the absent God's will, which is much the same thing, and seems to think he can boss Castiel around purely due to both his higher rank and superior power. Worst case scenario, he may even have beenthe one who talkedMichael and some other angels into going along with the Doomsday scheme.
And in the Season 6 finale, he thwarted Castiel's plan to become the new God...in order to hijack it for himself. Unfortunately for him, he got Out Gambitted along with Crowley by Cas and killed shortly after.
God Is Dead: He was of the belief that his "Father" is dead. When asked why by Castiel, Raphael simply answered: If God was really alive, why wouldn't He stop the horrors of the 20th and the 21st centuries, including the coming Apocalypse?
Scary Black Man: He might not have been as physically imposing as Uriel, but in terms of demeanor, attitude and possible danger level and the threat he was, he made Uriel look incredibly sad in comparison and as threatening as baby puppies.
In "The Third Man," he completely trashed Castiel and could only be stopped by Heaven's answer to nuclear weapons. It only killed his vessel.
Badass: He's the first and most powerful of all the angels, exemplified by Castiel asserting that he will simply kill Lucifer if the two were to duel each other, rather than fearing the reverse outcome.
Heel Face Turn: In the last two episodes of Season 6, he allies with the Winchesters to stop Crowley and Castiel from opening Purgatory. He pays for it.
Suspiciously Similar Substitute: For Gabriel: they share the same personality and they instigate the weirder plots and situations Sam and Dean find themselves in ("The French Mistake," anyone?). They're even killed in the same manner - a Heel Face Turn followed by getting betrayed and stabbed their own brother.
We Used To Be Friends: Castiel feels quite betrayed to see what his old friend has become.
Works both ways when Balthazar decides that what Castiel is doing doesn't sit right with him.
Demons
Meg Masters (Nikki Lyn Aycox, Jared Padalecki, Rachel Miner)
Bitch in Sheep's Clothing: Befriends Sam in her first appearance before he knows she's a demon by bonding with him as two fellow hitch-hikers.
Dying as Yourself: Meg was thrown out a several story high window but her powers kept the body alive. Episodes later, Dean and Sam exorcise the demon from her body, and the real Meg thanks them right before dying from the injuries.
Enemy Mine: Makes a... shaky alliance with the Winchesters in the sixth and seventh seasons.
Foe Yay: With Sam and Castiel. Also with Dean, to a lesser extent.
Gender Bender: She once possessed Sam to torment the brothers and made him kill other hunters.
Hero Killer: Killed Pastor Jim and Caleb, both of whom were old friends of the Winchesters and implied to be Heroes Of Another Story. She is also responsible for the deaths of Jo and Ellen.
Karma Houdini: Seven seasons in, and Meg is still alive. Somehow.
Meg has now been taken by Crowley to Hell, so karma eventually gets her in a way.
Known Only by Their Nickname: Since the demon's real name is never revealed, the characters (and fans) just call her Meg, after the girl we first see her possessing. It could have been revealed in "Caged Heat", but...
Too Kinky to Torture: Laughs at both Dean and Christian when they try. She also claims what Christian is doing to her is nothing compared to what her host has already suffered.
Meg: This is kind of a turn-on, Dean, you hitting a girl.
The Chooser of The One: He chose a variety of possible candidates before narrowing it down to the one who would release Lucifer and become his vessel.
Deal with the Devil: Made one with John in the Season 2 premiere. Also manipulated Mary into making one in the past, as revealed in "In the Beginning."
Demon Lords and Archdevils: A very high-ranking demon, and the only one to answer directly to Lucifer himself. His existence alone kept other demons from targeting Sam.
Known Only by Their Nickname: He is only referred to as "The Yellow-Eyed Demon" or some variation during the two seasons he appears. We only discover his real name from a third party well after he has been killed.
Anti-Hero: She's the brothers' ally all right, but she's also willing to do things like kill a virgin and cut out her heart to save everyone else, and get Sam addicted to drinking her blood in order to make him strong enough to kill Lilith.
Becoming the Mask: According to Eric Kripke and her Season 4 actress, Ruby really did come to care about Sam, but it's debatable whether she genuinely loved him or loved what he could do.
Evil Counterpart: To Anna. Both are benevolent supernatural beings who betrayed the rest of their kind. Both help the Winchesters. Both sleep with one of the brothers, an episode apart. Plus, both turn evil and are killed off.
Heroic Sacrifice: Came close to going through with it in "Jus in Bello". When she finds out that the Winchesters don't have the kill-anything Colt anymore, she immediately starts planning to do a spell that'll take out every demon in the area, including herself, to end their attack. Our Heroes figure out another way, of course, not that it saves the people in the police station from Lilith...
Suspiciously Similar Substitute: Her character could be summed up as "Meg plus Heel Face Turn." Possibly lampshaded in "Sympathy for the Devil" when Dean confuses Meg for Ruby despite having personally killed the latter only one episode ago.
Waif-Fu: Uses martial arts a lot more than she does telekinesis or other demon powers. Justified in her case, since she's a superpowered demon and thus capable of taking a punch and throwing it back.
Was Once a Man: Like all demons, she used to be human until centuries of torture in Hell irrevocably altered her. Unlike other demons, she seems to remember her humanity and wants to help Sam and Dean defeat Lilith.
What the Hell, Hero?: In "I Know What You Did Last Summer", Sam calls her out on the fact that for a self-proclaimed Noble Demon she's still possessing people against their will (which led to the death of her Season 3 host). She apparently listens to him, and chooses to possess a comatose girl just after she dies.
Die Laughing: She grins and laughs as Sam is slowly and painfully killing her, probably because she think it's funny that he's turned himself into a monster to stop the Apocalypse and is doing just that.
Was Once a Man: Used to be a human being, until Lucifer stripped her of her humanity and turned her into a demon via torture as a middle finger to God.
All Hallows Eve: Samhain is the inspiration for it in Supernatural.
One-Scene Wonder: Gets summoned and sent back to hell to never be seen again within the same episode.
The Quiet One: Most demons are quite chatty. After saying a few lines when he is first summoned, he doesn't say another word for the rest of the series.
Summon Magic: Can summon monsters including zombies and ghosts.
Ungrateful Bastard: Kills the witch who summoned him and calls her a whore.
Weaksauce Weakness: Has horrible vision, which is why masks can fool him. However, unlike most demons, he is immune to iron.
Deadpan Snarker: Often. When threatening Dean with a return trip to Hell because Dean didn't torture him well enough, he replies: "We'll see you back in class, bright and early, Monday morning." Surprisingly maintaining deadpan while kicking Dean's ass.
Oh Crap: He laughs at the idea of Dean torturing him, and mocks him at the idea of using of holy water. Then he sees Dean filling a syringe with holy water...
The Corrupter: To Castiel, though this ultimately comes back to bite him in the ass in the Season 6 finale.
Curb-Stomp Battle: In "Caged Heat," even after Sam, Dean and Meg have him apparently right where they want him, he manages to completely overpower them so fast, it's almost ridiculous. Bonus points for the look of bored amusement in his face after this happens.
Embarrassing Nickname: Apparently, all the demons call him "Lucky the Leprechaun" behind his back because of his original name which, as Bobby points out, is Scottish, not Irish.
Even Evil Has Standards: He may twist the wording of a deal to his benefit, but he never breaks a deal, as he explains to a minor Crossroads Demon who had been killing "clients" ahead of schedule.
Evil Counterpart: In a sense, to the Trickster/Gabriel. He is a demon while the other is an angel. Both are Affably Evil. Both are the fifth season's Ensemble Darkhorses. Both help Dean and Sam. Both resigned from their job in Hell and Heaven. And finally, neither of them want the Apocalypse to happen.
He's also this to Castiel, in that neither wants the Apocalypse to happen, both help the Winchesters, and both get cast out from their respective groups based on the previous two facts.
Both he and Castiel also try to introduced a new way of doing things to demons and angels, respectively, only to be met with opposition.
Evil Versus Evil: He helps the Winchesters to try and stop the Apocalypse, but bear in mind that he's still a demon. That just means he's less evil than Satan himself.
And in Season 6, we find that he and Eve, the Mother of All (non-demon) monsters, don't get along either.
Face Death with Dignity: Subverted. He's fully willing to face death, but Castiel doesn't want to kill him.
Faking the Dead: In Season 6, after Castiel "kills" him. Turns out they're actually working together and set the whole thing up.
Friendly Enemy: Played with, especially at the end of Season 5. Ultimately he's still a demon who crawled his way to the position of King Of Hell WITHOUT the angelic power someone like Lucifer had to back him up, so the Winchesters know damn well not to trust him. But he's honest with them (most of the time) and he doesn't play the mind tricks that Lucifer or Ruby did.
Genre Savvy: When Castiel tells him not to worry about the Winchesters, he's almost outraged and spits out a list of super-powered heavyweights that said the same thing about them, all of whom are either dead or locked away at the Winchesters' hands. All by two human boys who "shouldn't have been any trouble for them."
Crowley: Am I the only game piece on the board who doesn't underestimate those denim-wrapped nightmares?!
He also loves to drop double entendres and situational puns. All the time.
It is extra amusing at the end of Season 6 because the main target for his witty remarks and flirting is his business partner, Castiel. Needless to say said remarks go straight over Cas' head.
Long Lost Relative: His son Gavin. Father and son both hate each other. Crowley suggests that Bobby torture Gavin's ghost, and Gavin rats Crowley out, thus allowing Bobby to get his soul back.
Manipulative Bastard:In the Season 7 finale, due to his manipulations, Dick Roman is killed and Castiel pays for betraying him as he ends up in Purgatory along with Dean.
Meaningful Name: Crowley being either Aleister the occultist, or AJ (formerly Crawly) of Good Omens.
Only Sane Employee: He seems to think of himself as this, as far as Hell is concerned. Especially since getting promoted and finding out that trying to show demons a new way of having things work...doesn't work.
Well, now he's the Only Sane Employer. And, considering what his industry is, this is probably true.
Screw This, I'm Outta Here / Villain Exit Stage Left: In "The Man Who Knew Too Much," he quips "Exit stage Crowley" and disappears, following Castiel absorbing all the souls of Purgatory and becoming the new God.
Vetinari Job Security: Is starting to move into this position since becoming King Of Hell. Neither the good guys nor most of his fellow demons want the chaos that would result from removing him.
Monsters and Supernatural Beings
Azazel's Special Children — Sam Winchester (Jared Padalecki), Max Miller (Brendan Fletcher), Andy Gallagher (Gabriel Tigerman), Ansem Weems (Elias Toufexis), Scott Carey (Richard de Klerk), Ava Wilson (Katharine Isabelle), Lily (Jessica Harmon), Jake Talley (Aldis Hodge)
Bury Your Gays: Lily's reference to having a girlfriend (unless you interpreted what she meant as "my friend who is a girl" like the anime adaption did).
Cain and Abel: Andy kills his fraternal twin brother, Webber/Ansem to stop him from killing more people, shortly after he finds out they're related.
Distaff Counterpart: Ava shares Sam's visions and dead fiance. Even when they go off the deep end, how their powers develop mirror each other's - Ava controls demons to kill others, Sam exorcises and kills demons with his brain.
Neck Snap: Ava gets killed this way by Jake to save Sam.
Plucky Comic Relief: Andy, whose reaction to developing the ability to project images into people's heads is to torment a Jerkass by making him think about gay porn.
With Great Power Comes Great Insanity: Max, Ansem, Ava, Jake, and eventually Sam. The only exception seems to be Andy, who got stronger (on his own) but not crazier.
A Plague on Both Your Houses: Before she dies, she tells Sam and Dean to tell Bobby to go to Hell for introducing them to her in the first place, which cost her her eyes and her life. She later appears to have changed her mind because, in Heaven, she is happy and at peace.
Prophet Eyes: Her fake eyes, which make her look "extra psychic."
Deus ex Machina: It's revealed in "Dark Side of the Moon" that He was the one who rescued Sam and Dean and resurrected Castiel in "Sympathy for the Devil."
Bad Boss: Famine either uses the demons under his orders as sacrifice or as lunch.
Cool Car: Each one of them has one. War has a red Mustang, Famine has a black Chevy, Pestilence has a greenish-grey Pinto, and Death, the last we see, has a white Cadillac Eldorado.
Well, some are less cool than others. However, they are all puns, as each type of car is named after a horse, and is the color of horse that each respective horseman rides.
Of course, they mixed two of them up; in Revelation, Death rides the pale horse while the white rider is generally labeld as Pestilence. Possibly lampshaded/foreshadowed earlier in the series when Alastair said about Death, "You know he doesn't really ride a pale horse?"
Did You Just Punch Out Cthulhu?: War, thanks to Ruby's knife ("C'mon, kids, you can't beat War!"), Famine (courtesy of Sam and his demon powers, which Famine forced back on Sam) and Pestilence, thanks to the last bit of angel left in Castiel.
Humans Are Bastards: War thinks that we only need a little push to all kill each other, and Famine is not a big fan of our tendencies for always wanting more than what we can handle. Pestilence considers that bacteria and microbes aren't chaotic or destructive; we are. At least, Death is not so hard; he just sees us as incredibly insignificant.
Master of Illusion: War uses his ring to confuse two groups of humans by making them think that members of the other group are demons.
Unconfirmed to be either angels or demons. They can't be killed in any normal way, are not confirmed to have to be possessing anyone, and Death, at least, claims to be just as old as God and capable of killing Him.
Evil Old Folks: Though he's not so much evil as very mean.
The Fog of Ages: Death is either as old as God or even older; he can't remember anymore. According to him, God Himself can't remember that far back, either.
He also claims that he's going to be the one to reap God at the end of time, potentially making him the oldest known entity in the Supernatural universe.
Non-Malicious Monster: Death isn't interested in Lucifer's plan for bringing about the Apocalypse. He's not terribly interested in Earth, as it turns out...but it doesn't stop him from killing everyone in the restaurant where Dean meets him, apparently just by his presence.
The Omniscient: He appears to be this, although there are limits to his knowledge (such as assuming instead of already knowing what Sam, Dean, and Bobby summoned him for in episode 7x01, and surprise at being informed that they want him to kill "God" — i.e. Castiel). If not absolutely, he is at least functionally omniscient.
Reasonable Authority Figure: Death is much more level-headed and temperate than his "brothers," even though that doesn't stop him from being sarcastic.
In the first episode of Season 7, he even gives the Winchesters advice on what to do after they bound him, which is what he was so angry at Lucifer about that he told them how to defeat him. And brings an eclipse to aid in the spell to open Purgatory a second time. He's arguably the most reasonable super-powered being on the show. Though he did say he'd kill them if they ever tried to bind him again.
Considering that a certain archangel pulled the same stunt on him a couple seasons earlier, his anger and subsequent threat of swift death if they ever tried to bind him again is justified.
Subbing For Santa: In "Appointment in Samarra," Death agrees to retrieve Sam's soul if Dean will act as him for one day.
Summon Bigger Fish: In "Meet the New Boss," after Castiel declares himself the new God, the Winchesters—with an assist from Crowley—bind Death to their bidding so they can have him kill Castiel. It doesn't do much good, as Castiel frees Death from the Winchesters' control.
Suspiciously Specific Denial: Death doesn't care about humanity, Earth or helping Dean. He's very specific about that, while giving Dean advice on saving Earth and humanity.
Time Abyss: With massive amounts of Nightmare Fuel, Uncanny Valley, Cryptic Conversation, and all other manner of unsettling tropes. In his few appearances he has explained several times that he will persist throughout eternity, and is the only thing that could truly never die.
Death: This is one little planet, in one tiny system, in a galaxy that's barely out of it's diapers. I'm old, Dean. Very old. So I invite you to contemplate how insignificant I find you.
Dean: I gotta ask, how old are you?
Death: As old as God. Maybe older. Neither of us can remember anymore. Life, Death, chicken, egg.
Chekhov's Gunman: Originally introduced as a contact of Bobby's, she's revealed at the end of Season 6 to be an escapee from Purgatory, and the only one who knows how to open a portal there.
Eve, the Mother of All (Julia Maxwell, Samantha Smith)
Achilles Heel: Phoenix ash is her only weakness. Even if phoenix ash has been drunk by Dean; that blood is lethal to her due to phoenix ash being in it.
Assimilation Plot: In "Mommy Dearest," we find out that her ultimate goal is to turn all humans into hybrid creatures, so that all their souls will belong to her in Purgatory and denying any to Crowley.
Black Sheep: Suggested to be one in Season 7 as both her and her children are looked down upon by the Leviathans who are implied to be related to her and by extension her children.
Evilutionary Biologist: Has a few shades of this. She's not much interested in humans, except as potential test subjects to help her create the perfect monster.
Evil Versus Evil: She reveals in "Mommy Dearest" that she's come to Earth in response to Crowley hunting her "children" and is preparing to go to war with him.
A Form You Are Comfortable With: Subverted. In "Mommy Dearest," Eve takes the form of Dean and Sam's mom just to mess with them.
Glamour Failure: By seeing her on security tape footage, it's very clear she is not human.
Hoist By Her Own Petard: She bites Dean to try and turn him into one of her hybrid creatures, only to find out that he had previously ingested some Phoenix ash (her one weakness). Cue gory death.
Hot Mom: After all, she is the Mother of all monsters and the vessel she's in is gorgeous.
Badass Boast: "When your kind first huddled around the fire, I was the thing in the dark. Now you think you can hurt me?"
The Dreaded: The Winchesters haven't forgotten the fact that it took twelve hunters (most of whom died) to bring him in the last time and treat the situation with the appropriate gravity.
Enemy Mine: Gives the Winchesters his blood, which they need to kill the Leviathans and allows them to go free after he learns that the leviathans are trying to stomp out all other monsters, including his kind, to preserve their food supply.
Even Bad Men Love Their Mamas: You just don't call Eve a whore in front of the alpha vamp and walk away from it. Edgar found this out the hard way. God knows what'd happen if the alpha learned that Dean was the one who killed her...
Family Values Villain: Shows shades of this. Considers all vampires his children and even his snacks call him "Daddy".
Genre Savvy: He had borax on hand in case the leviathans tried to betray him.
It gets better. He probably didn't even know about their weakness to borax until Dean mentioned it. He could have ignored the suggestion but he didn't and it saved his life. That's one smart vampire, dude.
Implacable Man: It takes more than chains, dead man's blood, and demons to keep him down.
Last of His Kind: According to Crowley, he's the only alpha who didn't die in Season 6.
Leaning on the Fourth Wall: When the Alpha Vampire says to Dean, "See you next season," it's actually a metaphor for the way the Winchesters hunt, focusing all their efforts on one Big Bad per year.
No Honor Among Thieves: He believed the leviathans would let other monsters in on their big plan to turn the human race into a burger franchise, because they're all "family", related by Eve. He seemed genuinely upset when Edgar told him that they're actually trying to kill him and his children so they don't have to "share".
Leviathans — Dick Roman (James Patrick Stuart), Dr. Gaines (Cameron Bancroft), Edgar (Benito Martinez), Chet (Sean Owen Roberts), Agent Valente (Morgan David Jones)
Achilles Heel: The only way to kill a leviathan is to stab it with a bone of a righteous mortal dipped in the blood of a fallen angel, the King of Hell and a father of the fallen beasts (an alpha monster, the first of a monster species). This weakness is fairly hard to use against them because of meeting the above conditions and that they managed to keep it a secret until "Reading is Fundamental". As for their other weakness, see Weaksauce Weakness below.
Big Bad: For Season 7, more specifically Dick Roman.
Corrupt Corporate Executive: Dick Roman, the man possessed by the head leviathan, is one of the richest men in America, and since his possession has slowly started becoming the most powerful, via multiple massive corporate takeovers.
Dangerously Genre Savvy: Despite being Smug Snakes, Dick Roman and the Leviathans have their moments. For example, when the Winchesters are gathering what they need to kill the Leviathans — a bone from a righteous mortal and blood from a fallen angel, the King of Hell, and an Alpha monster — Dick summons the current King of Hell, Crowley, and traps him in his office, therefore ensuring that the Winchesters need to go into his office before they can finish the weapon.
Gets better in the finale, as Dick has several other Leviathans copy his identity, so the Winchesters don't know which one to attack.
Demonic Possession: They take control of Castiel, or at least hijack his vessel Jimmy, at the end of the Season 7 premiere. Noticeable was the change in tone of voice from Castiel's deep monotone to one that sounds more like an insane version of Misha Collins's normal voice.
In the following episode, Jimmy's body is about to be destroyed by their power, so they disperse, mass-possessing an unknown number of people across the country.
Fantastic Racism: They seem to share Lucifer's opinion on humans and demons.
They also despise the monster races sired by Eve (vampires, werewolves, etc), viewing them as mutts who're taking up their food supply. Because of this, they've specifically engineered their human complacency drug so that it poisons monsters as a side effect.
Fight Off the Kryptonite: Dick Roman pulls a villainous version of this trope by enduring a sustained barrage of borax-based cleaning products by the Winchesters long enough for him to catch up to them and fire the shot that ultimately killed Bobby Singer.
Hero Killer: Just one of these guys (Edgar, who's implied to be little more than a Mook Lieutenant) delivers a worse beating on the Winchesters than they've ever received on the show, with the (possible) exception of Lucifer. Afterwards, Dean actually calls an ambulance, which — as the Television Without Pity recapper pointed out — he's never done before in the entire series' run.
As of "Death's Door", Dick Roman has successfully killed Bobby Singer.
In "Reading is Fundamental", a lone leviathan is revealed to be able to slaughter angels with disturbing ease.
In "Survival of the Fittest", it is revealed that the Levianthans have killed an entire garrison of angels.
Human Resources: Dick Roman wants to turn all of humanity into complacent and stupid food sources for the Leviathans. They consider seven billion humans to be a limited resource.
I'm a Humanitarian: Not much of a surprise on this show, but their first instinct/threat regarding anything seems to be "Eat him."
One of the only ways to kill leviathans is to have them eat themselves or each other.
Slave to PR: As Dean notes to Roman, being in a celebrity's body means he can't just kill Dean himself, particularly in public.
Space Whale Aesop: In "Slash Fiction," Bobby didn't see the point of Sheriff Jody Mills cleaning up Rufus' cabin. After testing every monster weakness imaginable on the captive leviathan, the thing gets burned by borax that leaked into the basement while Jody was scrubbing the floor above. A lot of lives could have been saved if the average hunter was more into household chores.
Villains Blend In Better: They seem to be adapting to the modern world fairly well, considering they predate everything on Earth. Justified since they gain the memories of anyone they possess or shapeshift into (though they need DNA for shapeshifting).
Villain with Good Publicity: Pretty much everyone outside of the main characters and some of the side characters believe that Dick Roman is a businessman and a nice one too. In one episode, someone endorsed him for the Presidency. This is justified though with the implication that Dick makes in "There Will Be Blood" that he is replacing media figures with Leviathans that are in human forms, so he can look popular in the public eye. Of course, most people do not know about his plan.
Weaksauce Weakness: They're immune to every monster-slaying technique and implement that's ever appeared on the show (including decapitation), but are damaged by borox, a common ingredient in cleaning supplies, that burns them like acid. Oddly enough, they were just as surprised at the revelation of this weakness as everyone else.
It's safe to assume there wasn't any borax in Purgatory, making it impossible to them to learn of this Weaksauce Weakness.
Also, "Cas is gone. He's dead. We run the show now."
And from "Reading is Fundamental", "Rock beats scissors...leviathan beats angel."
You Have Failed Me: When Dr. Gaines' plan to use drugged fast food to make humans more complacent draws unwanted attention, Roman kills him — by forcing him to eat himself.
Turns out this is standard protocol — unless you've really managed to piss Dick off, in which case he'll just eat you himself.
Badass: All it took was a phone conversation with Dean for the Brothers Winchester to realize how screwed they were. Though this came dangerously close to a Creator's Pet-type conversation.
Heel Face Turn: In his last episode he ends up helping Sam and Dean fight off legions of demons and it is even implied that Hendrickson may become a hunter afterwards. Then Lilith shows up and slaughters everyone, him included.
Pre Ass Kicking One Liner: To standard operating procedure in his first appearance. When a cop on a case he's about to take over says: "I'm sure you're going to say you'd like me to cooperate and...," he responds with: "I don't give a rat's ass what you do. You can go eat a donut and bang your wife for all I care."
Lisa and Ben Braeden (Cindy Sampson and Nicholas Elia)
"You're a liar, Dean. You say family is so important, but what do you call people who care for you, who love you even though you're a dick? You know you're walking out on your family, right?"
Generation Xerox: Ben to Dean, as seen in "The Kids Are Alright." They aren't actually father-and-son, but...
Laser-Guided Amnesia: Castiel does this to them on Dean's request to protect them from his enemies after they are kidnapped to use as leverage against him and Lisa nearly dies as a result.
Stuffed into the Fridge: Suprisingly averted given what usually happens to the boys' love interests, though the Braedens do appear to have been permanently removed from the series.
Understanding Girlfriend: Lisa until vampire!Dean comes to her house, freaks her out, and shoves Ben.
Moral Event Horizon: Crossed it in-universe in "Dream a Little Dream of Me" when she took advantage of the Winchesters' concern for Bobby to steal the Colt and thus shoot down the last chance Dean had to escape his deal. She may have crossed it even earlier when she shot Sam or when it was revealed that she had murdered a family member.
Only Known by Their Nickname: Even Bobby thinks that "Bela Talbot" is her real name, but as revealed in "Time is on My Side", her real name is Abbie.
Meta Guy: Chuck, a prophet who writes about the Winchesters adventures in trashy pulp novels. He apologizes for some of the badly-written episodes and even makes a remark about Sam's character arc for the season making him less sympathetic. At some points, his remarks smack of Author Avatar-ness. It's done surprisingly well, though.
Audience Surrogate: She's a Winchester fangirl with little respect for boundaries, such as the ones between the fictional characters in the "Supernatural" novels and the actual people she meets. For some reason, she's not very popular in the fanbase.
Yandere: For Sam. She drugs him with love potion, ties him to her bed when it wears off, and almost sells her soul so that he'll fall in love with her.
An Offer You Can't Refuse: Dick uses Kevin's mom to force Kevin to give him the translation of the Word of God after the offer of a letter of recommendation to Princeton fails.