|~ Crowley's iconic quote when meeting with the Winchesters.|
|“||What's the line? "Saving people, hunting things--the family business." Well, I think the people you save--they're how you justify your pathetic little lives. The alcoholism, the collateral damage, the pain you've caused. The one thing that allows you to sleep at night, the one thing, is knowing these folks are out there. Still out there. Happy and healthy because of you. You great, big bloody heroes! They're your life's work and I'm going to rip it apart. Piece by piece. Because I can. Because you can't stop me. Because when they're all gone, what will you have left?||„|
|~ Crowley threatening Sam and Dean.|
|“||You're right. I am a monster. And I've done bad. I've done things you cannot even imagine. Horrible, evil, messy things. And I've loved every. Damn. Minute.||„|
|~ Crowley to Sam Winchester|
— Crowley, Supernatural, Season 10: The Prisoner
Crowley was a major antagonist appearing on the TV series Supernatural. He is the most recurring villain of the series. He appears as an anti-hero for most of the series but he was one of the main antagonists in Season 6 and the main antagonist in Season 8.
He was portrayed by Mark Sheppard, who also played Jim Sterling in Leverage.
Crowley's human appearance has thus far only been shown in a portrait of him as a toddler. Here, he's shown to possess fair skin and ginger hair. He was said to have been a handsome individual, with "very athletic calves". Upon his death and transformation into a demon, Crowley's true type became red smoke, a singular color unseen by the opposite demon. Whenever he takes a vessel, his true eyes are red.
Crowley's primary vessel is also a person of average height, slightly spherical with dark hair and light-weight skin. He grew a beard post-season half-dozen. Crowley prefers to wear costly, dry-cleaned suits of dark colors. Except during the time he possessed Linda Tran and when Crowley wore disguises, Crowley is never seen wearing anything by choice. When Lucifer took him, prisoner, he forced Crowley to wear bright-coloured clothing as an insult.
Crowley is crafty, devious, and extremely masterful at manipulating others. this is usually best incontestable once he tricks Dean into impressing and obtaining the initial Blade from Cain, with success manipulating not simply Dean however Associate in Nursing oversized range of demons World Health Organization he crystal rectifier to the slaughter. Despite his arrogance, he doesn't dismiss possible threats a bit like the Winchesters as other demons do but seek to eliminate said threats, but generally, he will let his conceitedness get the higher of him, particularly if he feels bound he can win. He was additionally the sole demon to understand that Lucifer should hate demons the utmost quantity as he hates humans (which demons originally were). He leaves once he realizes that a situation is simply too dangerous for him to risk, however, resolves himself when he knows that escape isn't Associate in Nursing option (such as derailing the Apocalypse once his betrayal was revealed to Hell and "accepting" death in "Meet the New Boss"). He thought up new concepts for the way Hell ought to be run and tried to implement new concepts once he became its king; once other demons resisted this, he called them "evil, lying prats" and "stupid," expressing the desire to kill all of them sometimes. he's also seemingly sentimental as he's rather dismayed when Sam kills his pet hellhound. Crowley was also intelligent enough to work out where Castiel had hidden the Angel Tablet, even when Naomi and her garrison couldn't. because of the previous King of the Crossroads, he's additionally very masterful at drawing up contracts and making hidden agendas to trick his enemies. He was also clever enough to make sure it had been Sam, not Dean, World Health Organization signed his deal in "Sacrifice".
Beneath Crowley's genial façade, he's cruel, sadistic, and merciless. He appears to be quite vengeful: he wants utter annihilation of the Leviathans once their leader insults him and also implies that he would adore determining all demons destroyed; he kept secret the ramifications of employing a Bone Of Righteous Mortal Washed within the Three Bloods of Fallen so as that Dean and Castiel would be imprisoned in Purgatory; he killed Kevin's girlfriend before him; he threatened Linda Tran once she slapped him and later apparently tormented her so badly during her brief possession by him that she went catatonic. Crowley also has no drawback killing youngsters as he's willing to slaughter a nursery of babe shapeshifters to hunt out Purgatory's location and later bakes baby flap muffins merely to urge on Dick Roman's sensible facet. He was also willing to let a hunter, Tara, die thus on trick Dean and retrieve the initial Blade, dismissing her as eggs that would like to be cracked to build Associate in Nursing omelet. Crowley has additionally shown to generally be very pitiless and angry with alternative demons. After both Lucifer and Abaddon were defeated, Crowley's first course of action was to collect and kill all the demons who had supported his enemy.
As the King of the Crossroads and later the Lordship King of Hell, Crowley is a very powerful demon, among one of the most powerful demons to appear in the series. This is perhaps best demonstrated by his single-handed slaughter of a nest of other demons off-screen in The Devil You Know (although he purposefully allowed one to escape). He ranks high in the hierarchy of Hell, at first presiding over other Crossroad Demons and serving as Lilith's right-hand man as the King of the Crossroads, then later became King of Hell. This title grants him much more power than he had previously.
- Immortality - Crowley has an infinite lifespan and had the potential to live forever. He is not subject to disease or old age. At the time of his suicide, he was over 354 years old.
- Supernatural Perception - Like all demons, Crowley can perceive Ghosts, Reapers, other Demons, and even Angels while humans cannot.
- Super Strength - Being the King of the Crossroads and then later the King of Hell, Crowley is endowed with incredible superhuman strength. He can lift and press at least two tons and is stronger than humans, monsters, and average black-eyed demons; literally once taking on a hive of them simultaneously. Crowley also beat a demon on the head with a crowbar, whose head was in a bag that had a painting of a devil's trap. He also effortlessly and brutally beat Meg, a middle-level demon. He also broke a steel door down with virtually no effort and then proceeded to lift Kevin Tran off the ground by the throat and would have strangled him to death if Metatron had not intervened.
- Invulnerability - Crowley cannot be harmed or killed by conventional means. In "Caged Heat", he was hit over the head by Sam with a wrench and soon after Meg tortured Crowley by damaging his vessel's insides and making him cough up blood, but Crowley quickly recovered both times and he has not shown any signs of lingering pain or damage from either attack since.
- Super Senses - Crowley was able to smell that Castiel had been in Dean's Impala and taste that the blood he and Raphael had been using was dog's blood.
- Super Stamina - Crowley stated while torturing Samandriel that he can remain physically active infinitely. He has also stated that he does not need to eat or sleep.
- Possession - Like all demons, Crowley requires a human host, living or deceased, to manifest himself on Earth. He has been known to possess five people besides Castiel: his usual vessel, Linda Tran, Sam, Andre Devlin, and Marnie. He was also able to possess a rat.
- Teleportation - Even before becoming King of Hell, Crowley could teleport himself and others over great distances with ease. He has proven to be quite proficient at this, as he was able to dodge Sam's knife attacks by teleporting rapidly. He can teleport between Earth and Hell with no difficulty at all. He can change his clothes in seconds, as shown when he teleports from a massage to Dean.
- Apporting - He once caused an angel blade to teleport into his hand and teleported Delta and Kevin Tran to another location by snapping his fingers.
- Telekinesis - As a demon, Crowley can move objects with his mind. He is shown to be very efficient at this and has telekinetically pinned, thrown, and trapped humans. He was able to destroy a street light by pointing at it. He also broke a girl's neck without touching her and lifted the future prophet Krista to a considerable height before using molecular combustion to bloodily obliterate her. Furthermore, he was able to throw Deputy Jenna Nickerson against a ceiling with enough force to kill her. Crowley has shown he can use this ability to control the physical movements of humans, such as when he forced a group of four men to shoot each other in Saudia Arabia with mere hand gestures. Crowley was able to use this ability on two separate occasions to knock Lucifer to the floor, once while the latter was in a weak vessel, and again in the Apocalypse World when Lucifer was caught off-guard. He also used this ability to thrust a young Amara across a room. Doing such feats to the Devil and the Darkness further displays his mastery of this power.
- Electrokinesis - He switched off television by snapping his fingers in "Weekend at Bobby's".
- Pyrokinesis - Crowley can create and manipulate fire. He conjured a blazing fire in the fireplace in "The Devil You Know" by pointing at the said fireplace, and conjured flames to burn a message into a table in "There Will Be Blood" before they extinguished themselves. He was also capable of engulfing himself in fire and create the illusion that he was burnt to ashes. He was able to extinguish a ring of holy fire by snapping his fingers and burn his mother's hex bag.
- Thermokinesis - Crowley made a painful burn on Sam's hand with a touch in All Dogs Go To Heaven. He also made Ruby's knife burn red-hot with a snap of his fingers in We Need To Talk About Kevin to make Dean drop it. In Hell's Angel, Crowley was able to remotely scorch the words "Help Me" into the forehead of his vessel while fighting Lucifer inside of Castiel to get the Winchesters to save him. The effect didn't last long and by the time Crowley returned to his vessel, the words were gone.
- Reality Warping (by deals) - As King of the Crossroads, Crowley is able to warp reality in the form of a deal to a greater extent than other crossroad demons and can even undo contracts made by other crossroad demons.
- Resurrection (probably by deals) - Crowley has the power to resurrect the dead if a deal is made, as he promised to bring Mary back for Samuel if Samuel helped him find Purgatory. Contrary to Azazel's claims in All Hell Breaks Loose - Part 2, Crowley may also have the power to resurrect the dead without a deal due to being King of Hell, as he claimed in Family Matters that he was the one who brought Samuel and Sam back to life; although his supposed resurrection of Sam was proven untrue, it was implied in The Man Who Would Be King that he did indeed bring Samuel back. He also resurrected Lucifer's old vessel, Nick, in order to have him act as the archangel's vessel once more.
- Healing - Through deals, Crowley was able to heal two people of their ailments: Bobby Singer from his paralysis and Ellie's mother from Parkinson's disease. But without a deal, he also healed a small but intense burn he had caused on Sam's hand. Crowley is the only demon who displayed healing abilities without deals; this power is far more typical of angels.
- Invisibility - He rendered himself unseen and unheard by Dean in the flashback of "The Man Who Would Be King" while he talked to Castiel in Dean's presence.
- Voice Mimicry - He taunted the Winchesters by briefly imitating his usual vessel's voice while possessing Linda Tran.
- Spell Casting - Being the son of a witch, Crowley has stated his mother had taught him a "few tricks". He has proved himself adept at Enochian warding magic. He also placed a spell that prevented creatures from escaping their vessels on an entire building in Caged Heat. He also learned the spell to bind Death in Meet the New Boss, which he passed onto Bobby and the Winchesters. He was also able to disguise his demons as Sam and Dean to fool Kevin Tran. In Clip Show he cast a spell to kill Sarah Blake with a hex bag hidden in a hotel room's cordless phone and previously caused Tommy Collins' head to explode using a spell. He also used this in an attempt to kill Jody Mills. He also used a spell to create an illusion that was powerful enough to trick Cain.
- Biokinesis - He was able to cause a man to cough up blood. While killing Louis, he forced him to be unable to speak, begin convulsing, and forced him to face towards his mother before causing him to bloodily explode.
- Molecular Combustion - Caused Krista to explode into a shower of blood, as well as Louis.
- Terrakinesis (possibly) - Crowley may have the power to create tremors at a particular location. When he and his demons arrived at the church Kevin and the Winchesters were at in "We Need To Talk About Kevin", one of them caused the grounds to shake to announce their arrival.
- Torturing - Crowley is shown to be skilled in torturing an individual, as seen when he tortured various monsters for the location of Purgatory or when he forced the names of the future prophets from the angel Samandriel. He is also skilled enough to break into an angel's factory settings.
- Immunity - Crowley can walk on hallowed ground. Although he finds being shot with rocksalt painful, he is not significantly affected by it, indicating that he may be resistant to salt. He was also able to resist and destroy one of Rowena's Defigere Et Depurgare hex bags, which had caused another demon to cough blood to death in a matter of seconds upon touching her hexbag.
- Regeneration - Despite being shot by Dean Winchester, Bobby Singer, and Abaddon, Crowley seems to have healed his wounds as there is no sign of them in his other appearances. He was stabbed by Meg with an angel blade and while his shoulder was briefly injured, the wound easily healed after a short while. Also, while Metatron severely burned his host's skin with a burst of white light, Crowley's vessel healed completely. Oddly, when Crowley vacates his host, his burn injuries do not seem to reappear.
- Mental Manipulation - Crowley was able to implant every written word of the English language into Gavin's mind, finally giving him the ability to read.
- Memory Manipulation - Crowley states that he "scrubbed" Kevin's short term memory, but noted that it was risky and didn't want to have to perform it again.
- Animal Communication - Crowley is able to understand and talk to animals.
- Sedation - When Crowley went to confront and capture Oskar for the spell to remove the Mark of Cain, he was able to render every other person in the diner unconscious in the blink of an eye.
- Dream Walking - In a deleted scene for Brother's Keeper on the season 10 DVD Crowley displayed this ability to visit Dean in his dreams.
- Expert Marksman - Though rarely using them, Crowley has shown himself to be an expert marksman with firearms. While two demons were holding Sam and Dean, he was able to shoot both in the head with The Colt, without hitting the brothers. He was later able to shoot and kill Esper, and would Ion non-fatally with his Angel-Killing Gun, as well as shoot Castiel in the stomach non-fatally.
- Ellen Harvelle (Indirectly Caused)
- Jo Harvelle (Indirectly Caused)
- Brady (Caused)
- Alpha Shapeshifter
- Eleanor Visyak (Alongside Castiel)
- Guy (Presumed)
- Dick Roman (Caused)
- Channing Ngo
- Meg Masters
- Tommy Collins
- Jenny Klein
- Sarah Blake
- Abbadon (Caused)
- Cain (Caused)
- Numerous humans, demons, angels, leviathans, and monsters.
- Crowley is similar to Lindsey McDonald from Angel and Cole Turner from Charmed, as the on and off villain of a monster of the week series.
- Crowley may have died in a ditch surrounded by his own vomit. In The Things We Left Behind, it's stated that  always said he'd die like that and when asked about how he did actually die, Crowley quickly changes the subject.
- In a deleted scene for Family Feud available on the season 12 box set, Gavin tells Rowena that Crowley ultimately drank himself to death when he was human.
- Crowley is the longest surviving and most recurring antagonist in the series, with his appearances rivaling that of Azazel's, Ruby's, and even Meg's
- Crowley is a third main character to be permanently killed off, following Ruby and Bela Talbot, who were main characters for Season 3.
- Crowley was among the multiple main antagonists of Season 6, the others being Raphael, Eve, and Castiel. He is also the main antagonist of Season 8. He served as an antagonist in Season 11 episode "Our Little World", after which he became an ally.
- Crowley's name, as well as his initial characterization as a snarky British demons trying to derail the Apocalypse, is similar to one of the main characters of Terry Pratchett and Neil Gaiman's Good Omens: The Nice and Accurate Prophecies of Agnes Nutter, Witch (called Anthony Crowley, who is coincidentally also a demon).
- Mark Sheppard, who portrays Crowley in Supernatural, suggested in an interview that Crowley may not even be a demon, although this was disproved in the eighth season when Crowley's red demonic cloud form and red eyes (when he possessed Linda Tran) were finally shown on-screen. And in season 10 his eyes were shown again via his original vessel.
- Crowley is the longest running antagonist for five seasons (two of which he is the main antagonist). However, he is notably the "weakest" main antagonist, as despite being the King of Hell, he is still a crossroads demon. Though, despite this, Crowley seems to not be easily killed and has obtained multiple means of killing angels, such as numerous angel blades and even angel bullets for guns, which arguably puts him on par with a regular angel now.
- Crowley is the most recurring demon in Supernatural, stealing the distinction from Ruby.
- Unusually, his true form's color is a dark red cloud rather than black like other demons, as shown in What's Up, Tiger Mommy?, Road Trip, Blade Runners, Out of the Darkness, Into the Fire, Hell's Angel, We Happy Few and All Along the Watchtower. This matches his eyes as his eyes are red due to being a King of the Crossroads previously. However, other demons with different eye colors do not match their true form, as shown with Azazel and Lilith.
- Crowley has assigned nicknames for Sam and Dean (which often reference Sam's height). For Sam, these include Giraffe, Gigantor, Jolly Green and (most commonly) Moose. He has also given Dean the nickname: Squirrel, and the name "Not Moose" in his contact list on his phone. Their respective "Squirrel" and "Moose" nicknames are a reference to Rocky and Bullwinkle, who are called "Moose and Squirrel" by their antagonists. In the episode Inside Man Dean combats this by replying "Boris. Where's Natasha?" referring to Rocky and Bullwinkle's nemesis: Boris Badenov and Natasha Fatele.
- He is the third character to be the main antagonist for two seasons, the first being Azazel and the second being Lilith; however, he is the first one to have a break seventh season between those two seasons in which he is not the main threat and to survive even after the second season that he was the primary villain.
- He is the second demon whose past as a human has been revealed the first being Ruby.
- In Weekend at Bobby's, he reveals that his favorite alcoholic drink is Craig scotch, aged at least thirty years.
- It is implied that Crowley and the angel Naomi had a sexual relationship in Mesopotamia.
- This pairing is the second known angel and demon relationships besides Castiel and Meg.
- He is also hinted to have been in a relationship with Billie.
- Crowley also claims he owns "the real Mona Lisa" and to some extent Alaska.
- When Crowley calls the brothers, the number 666 flashes on the phone's screen. 666 is usually a number associated with the Devil. He also uses a devil emoticon while texting Sam.
- Crowley's ringtone is Baby Got Back by Sir Mix-a-lot.
- Crowley has been shown to be very good with obscure or difficult languages: he is fluent in Enochian and knows Elamite Cuneiform.
- Crowley, along with Azazel (who possessed Tessa), is the only known demon to possess someone at the same time as an angel.
- Crowley has stated that the host he uses most frequently is a "moderately successful" literary agent from New York.
- Crowley seems to have an affinity for Adolf Hitler and/or the Nazi Party. In Abandon All Hope... he is seen watching Nazi silent films in his mansion and in the Man Who Would Be King a Hitler-esque portrait of Crowley in a Nazi uniform with a Devil's Trident in place on his wrist band in place of a swastika was visible in Crowley's new and improved Hell. He also showed Amara Hitler speeches to "educate" her.
- Crowley has so far possessed six individuals: A "moderately successful" literary agent from New York (his most common vessel, Linda Tran, Sam, Andre Devlin, Marnie and Castiel. However, he only possessed Linda to get the demon tablet and Kevin, possessed Sam to warn him about Gadreel, possessed Andre only to get information, possessed Marnie to get in contact with his minions so they could secure his first vessel and break Rowena's immobilization spell on it, and possessed Castiel to try and bring him to expel Lucifer from his vessel.
- Crowley, self-admittedly evil, states he has no virtues, but this is not strictly true. He has exhibited Ambition (striving to ascend to becoming the King of Hell, Diligence (delegating a lot of duties to his underlings and taking up tasks himself frequently), Honesty (while he enjoys loopholes, he demands that all demons honor their deals and maintain "consumer confidence" as well as integrity), Loyalty (he is not prone to betraying those with whom he makes alliances, something he calls out Castiel for doing) and Responsibility (commanding Hell's forces and fighting for the interests of all demons at heart as well as his own). However, Crowley has not truly exhibited patience.
- His name may be a reference to Aleister Crowley, an English Occultist, creator and self-proclaimed prophet of the religion Thelema who was born in 1875. He was denounced in the popular press as "the wickedest man in the world" and sometimes labelled a Satanist.
- His name also links to the crow, the bird of death, though this is unlikely connected to his character name and merely an amusing observation.
- When Gavin learned that his father had become a demon, Crowley quipped, "A lot can change in 291 years, "King of the Damned" implying that he had died as a human that many years ago. Assuming that the episode "King of the Damned" in which this information was revealed took place around the same time as its air-date (May 6, 2014), that would mean that Crowley died around the year 1723 and at around the age of 62, as he was born in 1661.
- Crowley displayed a possible fondness for Kevin Tran: when informed of his death, Crowley told Dean he warned Kevin it would happen if he didn't leave.
- While it is not known if his vessel was ever alive or was dead the entire time, after the events of "Out of the Darkness, Into the Fire", his vessel is dead for sure as Castiel stabbed it with an angel blade after Crowley vacated it. Despite this, Crowley was still able to return to his vessel, so it may have been dead the entire time.
- Like Meg and Abaddon, Crowley displays a fondness for a particular vessel, always returning to his usual form even after vacating the body for various reasons. Even after he was forced to flee his body in "Out of the Darkness, Into the Fire", Crowley had his demons remove the spell immobilizing his form rather than find a new vessel.
- When talking to Lucifer face-to-face, Crowley defined himself as "a mere acolyte, carrying Lucifer's torch", possibly indicating that Crowley holds some admiration for Lucifer's disturbed ideology and ways. However, this suspect gesture of humbleness may be just a product of Crowley's fear of the Devil, which makes pretty much sense, given that Crowley displayed to fear even the much weaker (than Lucifer) demon Cain very much.
- From his birth in 1661 to his death as a demon in 2017, Crowley was 356 years old.
- Mark Sheppard has expressed displeasure in his character's death scene in Season 12. Many fans have also expressed anger at the unfair treatment towards a long-lasting character and actor. Since leaving, Sheppard has ruled out ever wanting to return to the show.
- Along with playing Crowley, Mark Sheppard also played the demon Arnon in the show Charmed.
- Season 12 is the only season Crowley has appeared in where he does not have a villainous role in at least one episode.