Nightmare Fuel: Supernatural

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    Season 1 
  • Episode 1 - "Pilot"
    • Pure Adult Fear in Mary's voice when she realizes it's not John in her baby's nursery. "SAMMY!"
    • Jessica's blank, bloody stare when she burns on the ceiling.
  • Episode 2 - "Wendigo": The Mot W is a creature that attacks in the dead of night in the middle of an isolated part of the woods. Oh, and it can unlock doors and get inside your house, and in the episode, you never see it from the front standing in the light. You only see the the characters' reactions to it when it appears. Good luck and sweet dreams if you live in Wendigo territory.
  • Episode 3 - "Dead in the Water": The ghost of Peter Sweeney dragging his victims down into the dark water is terrifying enough, but the idea that he can get at you from any source of water; a bathtub, a kitchen sink... shudder.
  • Episode 4 - "Phantom Traveller": The very idea of Demonic Possession is Nightmare Fuel, you might be a little scared or nervous about something important or scary to you, and then a monster from hell takes your body for a joy-ride and will do whatever it wants with it, and the odds are vastly against you ever being released even if you die while it's riding you.
  • Episode 5 - "Bloody Mary"
    • Don't turn out the light, don't go to the bathroom. Don't say anything in the bathroom, because you might accidentally say 'Bloody M'—eep.
    • The eponymous ghost, in the coroner's words, "essentially liquefied" her victims' eyeballs.
  • Episode 6 - "Skin"
    • Shifter!Dean tearing his skin off. The worst part may well be when he pulls out his own teeth. "Hey Man Nice Shot" just makes it all the more effective.
    • Also, Shifter!Dean chasing Becky through the house and eventually tying her up, with the implication that he was going to rape her.
  • Episode 7 - "Hook Man": "Aren't you glad you didn't turn on the lights?"
  • Episode 8 - "Bugs" : Bugs in the shower. Bugs all around you if you fall into a pit by accident. Bugs crawling in your ears, in your eyes, swarms of bugs... and then the skies fill with them and your only option is to hide and try to last the night.
  • Episode 9 - "Home"
    • The dreaded cymbal monkey clanging as the poor repairman's arm gets caught in the garbage disposal unit.
    • The Poltergeist trapping the young boy in the fridge. Adult Fear to the max.
  • Episode 10 - "Asylum": One scene features a few seconds of a random ex-patient twitching writhing violently in a straitjacket. Sam and Dean finish talking about something and walk away, camera pans out, and then it's like something straight out of Silent Hill.
  • Episode 11 - "Scarecrow": The Mot W is terrifying enough, a pagan god that hunts you through the forest, takes you, skins you and wears you for a year until it's next victims come along. But even worse is the seemingly friendly townspeople that will give you a free meal, fix your car and send you into the forest to become food for their god.
  • Episode 12 - "Faith": The Reaper as it takes life, the creepy smile on it's face as it rips the very life-force from it's victims is horrifying.
  • Episode 13 - "Route 666": Cyrus Dorian's water-logged corpse falling from his truck in a sudden jump-shot is as quick as it is startling.
  • Episode 14 - "Nightmare"
    • The killer, Max, is shown killing his step-mom, in Sam's vision, by telekinetically plunging a knife into her eye.
    • Perhaps the most disturbing part is what he says before it happens:
    Stepmother: Max, I'm sorry!
    Max: No you're not. You just don't want to die.
  • Episode 15 - "The Benders"
    • There's a lot of creepy Eye Scream in this show. In this episode Dean gets tied down and interrogated by the murderous family, who threaten to burn his eye out with a hot poker. Then the father told little pint-sized Missy Bender to keep watch on Dean—which she did by holding the point of a knife about half an inch from his eyeball.
    • The sheer terror that the Victim of the Week goes through as the Benders hunt him through the forest, laughing at his fear and stumbling attempts to escape or fight back, ending in them putting him down like a wounded animal. Plus all the junked cars and pictures on their trophy wall, they've been doing this a long time...
  • Episode 16 - "The Shadows": The Daevas are still, after 10 seasons, one of the most terrifying things this show has ever featured. They have no physical body, they are the shadows and they will tear you to shreds while you are completely unable to fight back. After all how do you fight a shadow??
  • Episode 17 - "Hell House": Mordechai Murdoch is scary, but the real Nightmare Fuel here is the idea of a Tulpa. How many monsters exist in the Supernatural world just because somewhere, somebody believed in them enough...
  • Episode 18 - "Something Wicked": The image of the Shtriga sprawled over little children, drinking their souls as they lie there, helpless, is terrifying. Even worse is the knowledge that he has done this before, and nobody managed to stop him there. He claimed what looked like 10-20 children, and according to Sam who saw the records of the towns he last victimised, "[he was] just getting started."
  • Episode 19 - "Provenance": Melanie Merchant killing her parents and siblings in their beds with a straight-razor is scary, the noise she makes when she finds Sam and what her face does; sheer Nightmare Fuel.
  • Episode 20 - "Dead Man's Blood"
    • Vampires. One day you are out for a drive with your sweetheart and you see a man passed out on the side of the road, so you stop to help. Next thing you know you are in an abandoned building, being ripped to shreds by a pack of hungry monsters while your girlfriend is being turned into one of them.
    • Also their eyes in the lights of the truck as John pulls up to the confrontation with the nest.
  • Episode 22 - "Devil's Trap": It might be Fanservice for some, Fan Disservice for others, but the scene where Dean is bleeding to death (HIS ORGANS ARE MAKING SQUELCHING NOISES) was made even worse by the "Daddy, please...", with him crying and the blood running freely from his mouth and the demon letting John come back up to make him watch...

    Season 2 
  • Episode 1 - "In My Time of Dying": Tessa's true form looks like a cross between a ghost and a corpse that's been underground for a hundred years.
  • Episode 2 - "Everybody Loves a Clown"
    • The Monster Clown and how he takes his victims, their children let him in. Because after all; Everybody Loves a Clown
    • When the Rakshasa reveals himself in his human identity, he removes his sunglasses to reveal creepy white eyes and his smile literally stretches ear-to-ear right before he goes invisible and starts attacking. It's a really good thing he isn't wearing his clown outfit at the time or it'd be so much worse.
  • Episode 3 - "Blood Lust": A female vampire is decapitated in the beginning. Gordon nearly gets decapitated by a vampire but Dean shows up in time to decapitate the vampire instead. And then there's when Eli bares his teeth and gets menacingly close to Sam or when he and another guy assault Sam in his motel room.
  • Episode 4 - "Children Shouldn't Play With Dead Things": The Pet Semetary-vibe that Angela gives off makes her creepy, but her sudden switches from serene calm to murderous rage is terrifying, especially when she goes after a victim.
  • Episode 5 - "Simon Said"
    Webber: I want you to listen to me very carefully, okay? When we're done here, I want you to head over to the edge of that dam, okay?
    Tracey: Okay.
    Webber: And when you get there, you're gonna think you can fly. And you're just gonna step right off. (strokes her face) You can fly, can't you?
    Tracey: (starts sobbing again) I-I think so.
  • Episode 6 - "No Exit": The sheer terror that Holmes' victims must have felt, locked in those iron coffins as he whispers to them and strokes them, lingering and exclaiming how soft they are. Dean pulling out a bloody hank of hair and scalp makes it even worse, how did Holmes actually kill and dispose of them??
  • Episode 7 - "Usual Suspects": The ghost with the slit throat trying to talk.
  • Episode 8 - "Crossroad Blues": Knowing what one goes through near the end of their time as seen in this episode (and later personally by Dean in "No Rest for the Wicked"). If it wasn't bad enough that you'll always be seeing the faces of everyone you see suddenly take on the appearance of rotting corpses as a reminder that your time is almost up, you also have to eventually face those damn hellhounds...
  • Episode 9 - "Croatoan": The calmness, bordering on creepy serenity, that the Croats show, right before they start screaming and coming at you with the first sharp thing they can find. And what it must have been like for those few sane people as their friends and neighbours turned on them;
    Duane Tanner: I... I saw Roger Mc Gill being dragged out of his house by people we know! They started cutting him with knives!
  • Episode 13 - "Houses of the Holy"
    • It has to be said, this show has a disturbing ability to make near-rape scenes a thousand times scarier, like this episode with the man about to rape the woman ("I'm sorry! I'm sorry, it's just I've never done this before.")
    • The other two victims were disturbing as well. The first one who kidnapped two college students and buried them under his basement, dead or alive we don't know, and the second who was grooming a thirteen year old girl over the internet. If "the Angel" hadn't stopped them...
  • Episode 14 - "Born Under a Bad Sign"
    • The near-rape scene. Maybe it's because we don't know Sam is possessed at this point, maybe it's because it's one of the leads doing the near-raping, maybe it's the size difference, maybe it's because Jared Padalecki is scarily good at being menacing and Alona Tal was fantastic at acting terrified... There's a subtle but very noticeable contrast to how he normally acts - the way he hunches just a little and is generally the non-threatening of the duo, and all of a sudden his body language is a bit more aggressive and his smile just a little too gleeful, almost a Slasher Smile compared to his usual quick, wide, innocent one. The scare comes at least in part from the fact that you are aware that the 6"4" Sam could easily take down the petite, untrained Jo with no real effort just before he proceeds to do so.
    • Demons have superhuman strength, right? In "Phantom Traveler", one even opens a door with two tons of pressure on it. So if they had sex with a human, especially non-consensual sex, it could result in a painful case of Death by Sex if they weren't holding back. Poor Jo really dodged a bullet here.
  • Episode 16 - "Roadkill": The ghost of Jonah Greely, who Dean describes as "[looking] like he lost a fight with a lawnmower."
  • Episode 17 - "Heart"
    • Madison's eyes when she turns are pure beast, not a single trace of anything human left in them.
    • The idea of being a werewolf is scary as hell. You may not even realize you are one, even as you continue finding the bodies of those people you either like or dislike that you have killed at night and don't even remember dead around you, until one day a Hunter comes to put you out of your misery.
  • Episode 20 - "What Is And What Should Never Be": Djinns have been tricking people into staying in their own heads, happy for "years", whilst outside they're slowly dying. On the other hand, imagine if Dean's dream was real; what if Sam had had to watch his brother kill himself, raving on about monsters and how the whole world is a dream?

    Season 3 
  • Episode 1 - "The Magnificent Seven"
    • The part where a hunter was brainwashed to down a jug of drain cleaner while the titular seven demons roared with laughter and his wife hysterically pleaded him to stop was possibly the most disturbing scene in the whole series. It's the "poetic justice" bit that makes it even more disturbing, because you can't help but understand why the demons would love it so much—it's rather like how Bobby got posessed!Sam to drink beer with holy water in it.
    • Another moment that's a throw-away line by Bobby who says that two of the Seven Sins' victims will survive, but they have a life-time of therapy ahead of them. 99% of the time a Demon's meatsuit dies as a result of the possession, and you'd think that the few who survive would be the lucky ones, but they aren't. Their lives have been forever altered by their experience, they will be traumatised and might actually break down from the guilt of their actions while possessed or the fear that it will happen again. Nobody comes out of demonic possession the same, either they die or they are changed for life.
  • Episode 2 - "The Kids Are Alright"
    • Not the Monster of the Week, but the image of a mother, with complete, cold calmness, driving to a lake with her daughter, getting out of the car, locking the doors, and then releasing the emergency brake. Finding out what the kid really was made it less scary.
    • The first time the Monster of the Week is revealed the rearview mirror. Combine the Creepy Child with that little flash and ugh.
    • Even without the monster faces, the Mot W were creepy even when standing there and doing nothing. Their dead expressions, similarly child-like tone of voices, and their sudden outbursts of white-hot rage when separated from their victims.
  • Episode 3 - "Bad Day at Black Rock": The gruesome fate of Wayne once he loses the Rabbit's Foot. Gory Discretion shot helps, but not as much as you'd think.
  • Episode 5 - "Bedtime Stories"
    • Anyone who fit the fairy-tales had to act them out. The old woman was the worst part.
    • The worst might actually be the "Big Bad Wolf". This innocent guy was forced to murder multiple people because he had a tattoo of something a little girl mistook for a wolf. Unless he ran, he probably went to jail for what Callie forced him to do.
  • Episode 8 - "A Very Supernatural Christmas"
    • Sam's fingernail being pulled out.
    • The dungeon under the Mot W's house, the filthy tools on the walls, and the blood-covered sack that starts screaming when Sam and Dean touch it.
  • Episode 9 - "Malleus Maleficarum"
    • The opening sequence involving a woman's teeth falling out of her mouth.
    • Whenever witches use maggots. Especially that scene with the hamburger.
    • The first witch's arms being slashed open vertically and deep.
  • Episode 10 - "Dream a Little Dream of Me"
    • Dean's Doppelgänger especially after Dean supposedly kills him. He gives Dean the Black Eyes of Evil and...
      Demon!Dean: You can't escape me, Dean. You're gonna die. And this—this is what you're gonna become!
    • The episode ends with him saying it again and smirking at the audience before snapping his fingers. Cue credits.
    • Bobby's nightmare about being chased through his old house with his wife, covered in blood and screaming at him the entire time, the house shaking as she bangs on the door to get at him.
  • Episode 11 - "Mystery Spot"
    • Sam, after Dean's temporary-real death. Completely emotionless, driven, almost robotic. Impressively precise in a sociopathic way (it's mentioned he took out a ton of demons and a vampire nest in the intervening time), but it's still disturbing the way he patches himself up without a sign of emotion.
    • Even worse was when Sam 'killed' 'Bobby'. Sure it turned out to be the Trickster, but Sam did that on a hunch that it wasn't really the man whose become his adoptive father. What if he had been wrong...
    • Let's not forget the subtle suggestion how his grip on reality was slipping. At one point in the montage he's in a hotel room eating and across the table is a plate with a bacon cheeseburger and fries (Dean's favorite).
  • Episode 12 - "Jus in Bello": Lilith is total Nightmare Fuel. Not only is she possessing a little girl, younger than 11 from the look of it, she annihilates the police station and kills everybody that Sam and Dean saved. Horrible, and then it got even worse in Season 4...
  • Episode 13 - "Ghostfacers"
    • Freeman Daggett appearing in the camera with glowing eyes is a hell of a Jump Scare.
    • Poor Corbett's fate. His terror as Daggett has him tied up in his basement with corpses dressed in party hats and ancient rotting birthday food. Then Daggett killing him while whispering, "It's ok."
  • Episode 14 - "Long Distance Call"
    • This entire episode is Nightmare Fuel. First the Mot W sucks peoples souls out, has a maw full of needle teeth and unhinges his jaw like a snake to feed. Then it goes into a speech about how it used to barely be able to feed itself because back then people looked out for each other, "they had community" and because people were more willing to accept strange things back then. Now, all he has to do to feed is pick up the phone. "You've never been so connected. And you've never been so alone." Chilling, and even worse when you realize that in a way he is actually right.
    • The scene in Lacey's bedroom. Her "mother" talking to her through the computer, ending by saying "I'm right here with you." The screen goes dark and through the reflection we see a woman appear and reach out for Lacey, and after she rips the computer's power cord out it turns back on and starts endlessly typing "Come to Me" over and over and over again. Perfectly understandable if you don't like watching that scene in the dark.
    • The Crocotta manipulating that poor fireman into nearly killing Dean by pretending to be his daughter, and Dean into nearly killing an innocent man by pretending to be John. How easy it was makes it even worse.
  • Episode 15 - "Time Is On My Side"
    • What about almost the entirety of this episode? You've got a guy's guts literally spilling out, another guy being shown his still-beating heart and Sam's puppy dog eyes nearly being gouged out with an ice cream scooper!
    • How the boys deal with Doc Benton is terrifying, burying him alive. He'll be down there until his body parts rot and he falls apart, maybe even longer then that. Maybe until there's nothing but dust left.
    • The final moments when Bela realizes just how screwed she is. The smug overconfidence has completely disappeared and she becomes like a scared little girl. It gets even worse when the clock reaches midnight and we hear the horrible howls of the hellhounds and all Bela can do is look out the window, knowing that she cannot escape.
  • Episode 16 - "No Rest for the Wicked"
    • The very end of the episode with Dean chained up in Hell with hooks in his side and shoulder. Even worse when you read the Wordof God regarding this scene and learn that that particular place is "the waiting room". Meaning it got worse than that, far worse.
    • Worser and worser, Dean being torn apart by hellhounds. Lilith's child-like laughter, mixed with Dean's pain-wracked screams, throughout that entire scene makes it even more horrific.
    • Little Girl Lilith. Despite the complete horror of a cute kid killing her pet and her grandfather juxtaposed with her wanting to be pushed on the swings or having birthday cake every day, what about when the little girl's NOT possessed anymore? Not enough therapy IN THE WORLD to get over what she went through.

    Season 4 
  • Episode 1 - "Lazarus Rising"
    • The flashes of Hell that Dean keeps experiencing. They only last a second but each one shows his bloodshot and terrified eyes in a blood red light, as around him there is what sounds like the screaming of a million people at once.
    • The aftermath of the diner when the Angels are done with it. True they were Demons, but seeing them with their eyes burned out of their sockets and the one survivor nearly incoherent with fear, you know that whoever did this does not mess around.
  • Episode 2 - "Are You There, God? It's Me, Dean Winchester"
    • The unexplained Noodle Incident between Bobby and the two litle girl Witnesses;
      Girl One: You walked right past that door.
      Girl Two: The monster had us. And you didn't find us.
    • The return of Henriksen, and learning that when Lilith killed him and the rest of the survivors in "Jus in Bello" it took 45 minutes...
    • Meg revealing that after she died as a result of Sam and Dean exorcising her, and not recognizing that she was possessed in time, her little sister committed suicide after seeing her older sister's broken body in the morgue. Reminds you that not only the meatsuits have their lives ruined by demons, their loved ones do too.
  • Episode 4 - "Metamorphosis"
    • Jack after transforming into a Rugaru, his lined face, red eyes and sharp teeth. And the horror that he turns Travis into.
    • Travis trying to burn Jack and his pregnant wife Michelle alive. Horrifying on it's own, but when you take into account that Travis is a hunter it's even worse, he is meant to be a good guy and yet what he tries to do here is worse than anything even Gordon Walker ever did. A reminder that Hunters are not always the good guys.
  • Episode 6 - "Yellow Fever": Lilith in Dean's hallucination revealing that every month in hell is actually 10 years. The terror in Dean's eyes as he realizes who has just grabbed onto him is another truly scary moment, even Azazel didn't scare him that much.
  • Episode 7 - "It's the Great Pumpkin, Sam Winchester"
    • The razor blades in the candy in the opening scene.
    • A few minutes later in the same episode, the potential Halloween Shout-Out with Jenny getting her face boiled in the now-scalding apple tub.
    • The stoner getting dragged into an open coffin when Samhain locks them in with the newly arisen zombies, and the sudden explosion of blood that comes out of the coffin a few seconds later.
  • Episode 9 - "I Know What You Did Last Summer": Anna crying "Her face!" while looking at Ruby sends the imagination into overdrive. The results can be nightmare-inducing.
  • Episode 11 - "Family Remains"
    • The brothers believe a family who just moved into a new house is being haunted by a ghost. Turns out the "ghost" is a human girl who lives in the walls. Most episodes, you can calm yourself down by reminding yourself that monsters aren't real, but not this time...
    • The screams that both the Girl and Boy in the Wall make when they attack really stick in the mind after the episode.
    • In that same episode, when it's revealed what happened to Buster the dog. Heck, the savage smile on their faces as they tore a live rat apart with their teeth.
    • Fridge Horror: There are two siblings. Their dad/granddad got their mother/half-sister pregnant twice. After the first one he just kept going.
  • Episode 13 - "After School Special": The boy jamming the Jock's fist down a food processor.
  • Episode 14 - "Sex and Violence": The sex scene with the siren. It's a beautiful naked woman until you see its reflection as a lumpy, hairless, gray-skinned thing with a snake-like nose and a rotted mouth. Imagine having sex with that. Imagine being put under its spell and tricked into murdering your loved ones, before it leaves you behind to spend the rest of your life in prison with the realization of what you've done.
  • Episode 16 - "On the Head of a Pin"
    • Every scene of Dean torturing Alastair. Especially the utterly dead look that Dean has throughout the entire episode, he's clearly letting out a part of himself that he would rather didn't exist, and suppressing the better parts of him just to be able to get through it without breaking down.
    • One of the worst moments came when Dean forced the salt down Alastair's throat. Considering that eating ten or so table spoons of salt could kill you within an hour.
    • When Alastair gets loose, Dean goes completely limp the instant Alastair gets a hand on him. He's not even trying to resist. Thirty years' worth of conditioning, huh?
  • Episode 17 - "It's a Terrible Life": The guy microwaving his head to commit suicide.
  • Episode 19 - "Jump the Shark"
  • Episode 21 - "When the Levee Breaks": Sam's detox telekinetically slamming him across the room, and when every vein in his face turns black with demon blood in his reflection.
  • Episode 22 - "Lucifer Rising": Azazel's slaughter of the nuns in the cold open.

    Season 5 
  • Castiel in "The End": While not outright terrifying, the Broken Angel-ness starts bad (normally straightlaced Cas organising hippie love-fests?) and just gets worse (normally straightlaced Cas turned organiser of hippie love-fests... who is entirely unruffled, telling past-Dean about how he's effectively human and takes amphetamines as "a perfect complement to that absinthe", while on the way to what he knows is his death?). Unsettling, even by Supernatural's standards.
    Dean: Are you... stoned?
    Cas: Generally, yeah.
    • There is something deeply unsettling about Lucifer in general, but especially when he's walking about wearing Sam. It hits the Uncanny Valley in so many ways.
  • Lucifer any time really. First, he isn't the 'devil' most people perceive. He's brutally honest, straight up with the Winchesters (and especially Sam) about his plans. Problem is, there's nothing they can do to stop him. Even the Colt, which was said to be able to destroy just about anything, can't kill him. He's just a really nice guy who just happens to have the end of all human life on his agenda.
    • Hammer of the Gods: A collection of the most powerful pagan gods are so terrified of Lucifer that they meet together to create a plan to stop him. This includes Odin, Kali, Baldur, and Mercury (the Roman form of Hermes.) What happens when he shows up to the gathering? A one sided slaughter the likes of which is rarely seen in Supernatural.
  • Death. When first we hear of the Four Horsemen, it's assumed that they're demons. This is very much so not the case when it comes to Death. The guy scares the ever-living crap out of Dean Winchester, who takes crap from NO MAN.
  • The wraith hallucinations in "Sam, Interrupted" where Dean sees everyone's reflections as rotting faces. Then there's the sketch of the wraith in Martin's journal—thanks for that, Martin! Then there's its M.O. of driving people insane so that it can feed off of them and, once it's used up a victim, it kills them in a way that makes it look like the patients simply killed themselves. Who knows how many mental institution patient "suicides" were actually the work of a wraith that was never caught?
  • "My Bloody Valentine" and especially that couple at the beginning was nightmare fuel in its pure, distilled form; none of the Horsemen are family-friendly, but Famine is a very special case.
    • According to an interview even Ben Edlund, the writer, was disgusted.
    • The scene at the end where the guy is lying dead in the deep-fryer. His whole upper body was in there. The implication being that, since he was earlier shown sticking his hands in the fryer to get to the food within, once he either ate his deep-fried hands or lost use of them, he stuck his face in to eat more.
    • Watching Sam slowly falling apart over the episode as Famine's influence makes itself known and his addiction to demon blood starts coming back to haunt him can be particularly unsettling. Especially when the two demons show up to capture him and he completely loses control.
    • "The Children Are Our Future": The idea that someone could die just cause you tell the wrong kid Lies to Children is both this and Paranoia Fuel.

    Season 6 
  • "Two and a Half Men": A shifter poses as women's husbands while the husband is out of town, has sex with them, and comes back for the baby nine months later. This has resulted in divorces in some cases. And he is perfectly willing to kill the woman and her husband to get the kid back.
  • "The Third Man": the effects of the Staff of Moses on the dirty cops—turning into sacks of blood, filled with boils and locusts eating out their brains.
  • Death putting Sam's soul back in "Appointment in Samarra" seems a little rape-y upon watching it again.
  • "Unforgiven": Arachne's disfigured face. You can't tell if Arachne come that way or if they were from burns. And don't even get me started on the eyes. And since Arachne apparently breed, what did Roy mean when he told Sam he was considering turning him?
  • "Mannequin 3: The Reckoning" had possessed Murderous Mannequins stalking people then killing them. The worst part was when they moved on-screen. At least one of the wikis for Supernatural changed its first recap picture for its page on the episode (that of a mannequin smiling after killing someone) because it was a little too unsettling for some people.
  • "... And Then There Were None": The hissing parasitic "Khan worm" that crawls into your ear and makes you kill people. At least you can see 30 foot monsters; this thing can hide and strike from anywhere. Plus it looks nasty.

    Season 7 
  • Castiel's vessel melting in "Meet the New Boss" and the scene where he unbuttoned his shirt to reveal Purgatory souls are clawing at him from the inside, trying to get out. Becomes even worse if you allow yourself to think of how many of said souls have encountered and been killed by the Winchesters, how many of them see the Winchesters and want revenge...
  • Season 7 introduces the Leviathans, who spread out into the water supply, infecting anyone who comes in contact with it. Think twice before you take that next drink from the water fountain...
  • The ending of "The Girl Next Door". The Leviathan taunts its victim and says "Plain old people taste fine, but everything is better with cheese", then upends a pot of melted cheese onto his head and, while the victim screams, reveals his Leviathan-face right to the camera as he moves in to eat the dying victim. Repulsive.
  • Bibbing. A Leviathan that has pissed off their boss enough gets a bib put on them and is then forced to eat himself. It has got to be one of, if not the, worst ways to die the series has depicted, even if it can only happen to the bad guys.
    • From Bad to Worse: Leviathans are nigh-invulnerable and regenerate when injured. Now think about that. You'd be trying to eat yourself faster than you can heal and, if you were too slow, would have to do it again.
  • The cursed teapot in "Out With the Old" causes a woman to pick up a super-heated metal teapot with her bare hands, then pour the super-heated water into her own mouth. What makes it worse is that you can see her horrified expression as she pours.
  • The ghosts with the rotting faces and the lady who rushes shrieking at the camera in "Of Grave Importance".
  • The Leviathans' plan. Unlike other evil plans in the show, that tend to focus only on supernatural aspects, Dick Roman is manipulating numerous parts of everyday life. He's taking control of the media, food companies, and more. Why? So he can manipulate everyone on the planet into becoming stupid, complacent, overweight sources of food for the Leviathans and set up slaughterhouses so every human in the world can be used to make a massive meal for the Leviathans. Oh, and he's doing it in ways most people aren't even aware of until it is too late. Once you bite any of the tainted food he's put out there, it is so addictive, it is probably too late for you. But at least you'll become so stupid you probably won't care you're being eaten. To make it worse, as of "There Will Be Blood", Dick is putting chemicals to change people in every food with high fructose corn syrup, so almost every piece of food you can buy will turn you eventually into a Leviathan's meal.
    • The scariest part of all this is that they consider humans (over 6 billion of us) to be a limited resource!
  • Sam's hallucinations of Lucifer and the Cage. You'd think the meat hooks, chains, and constantly being told that nothing around you is real would be bad enough. No, the visions have to get so bad that Sam is incapable of sleeping, has to be institutionalized (however briefly), and comes close to dying of sleep deprivation. It also veers into Fridge Horror territory when Lucifer does things like call Sam "bunk buddy". It makes you wonder what exactly happened down there.

    Season 8 
  • Most of Crowley's actions in 'A Little Slice of Kevin'. Torturing Samandriel, blowing up one of the future prophets leaving Kevin covered in their blood, and cutting Kevin's finger off. This episode proves that while Crowley may be Affable, he is most definitely EVIL.
    • Keep in mind, one of those future prophets covered in Ludicrous Gibs is a little kid.
    • Also, Castiel's situation regarding Naomi's 'little chats'. Not only is he being forced to spy on the Winchesters against his will (literally, he's compelled to answer Naomi's questions while in her office), but he doesn't even remember doing it.
    • It gets worse in "Torn and Frayed", when he flashes back to a time when Naomi strapped him to a chair and seemingly lobotomizing him.
  • Chuck's fate, according to Castiel. He is dead and we don't know why or how. It's horrifying when you think what Crowley did to the OTHER prophets, including Kevin. Did Crowley torture Chuck to death? Did he just kill him? Chuck was portrayed as weak and frightened in most of his appearances. Less horrifying when you watch the interviews with his actor and Castiel's actor, and they both confirm that Chuck was never a prophet in the first place, but actually GOD! One wonders if Crowley even tried to confront Chuck and what happened when/if he did. Hilarity Ensues when King of Hell tries to torture God?
    • Actually, I think Chuck's "death" was actually him going... somewhere at the end of "Swan Song". He isn't actually dead, he just left. Plus, since Cas didn't know Chuck was God, it's easy to see why he'd think Chuck died...
    • In the bible, prophets ascend straight to heaven when their work is done, without dying. Some of them become angels (Metatron used to be a human prophet according to most angel lore) but they do just vanish. I don't think anything horrific happened to Chuck, he was just done.
  • The Monster of the Week in Larp and the Real Girl, the way it just pops out of nowhere provides a genuinely terrifying Jump Scare, and the deer-skull it uses makes the head seem unnaturally long. Of course this gets a little less ruined when it's revealed to be a fairy, in the form of Gilda who Charlie has a teeny bit of a crush on.
  • The opening of "Goodbye Stranger" in which Naomi has apparently been forcing Castiel to kill copies of Dean over and over again as a conditioning strategy. It's bad enough that the first thing the viewer sees when the episode begins is Castiel dispassionately killing a pleading Dean, but when the camera pans up to reveal a room filled with a huge number of Dean-corpses, the situation becomes even more disturbing.
  • When Hell is re-revealed in Season 8. It's no longer just a abyss of smoke and chains, its a literal torture dungeon where you're tormented by demons taking the form of people you loved. One woman was so broken by it she kept saying 'You came, I prayed for it, you came, I prayed for it' to Sam. All with the sound of souls being eternally tortured.
    • Actually, the re-introduction is even worse than that, when you remember that Crowley previously mentioned that after taking over, he changed Hell into an endless corridor where people are forced to queue for all eternity. Now it's looking worse than ever before, cruel and twisted just like Crowley himself has become.
  • What Naomi and her angels do to the Biggerson's diner that Castiel arrives in. Everyone is massacred except for the waitress, who is sitting on the ground with her back against the counter and HER EYES BURNED OUT AND BLACKENED and whimpering over and over in a pleading voice, "You need to stop. Please. You need to stop."
    • The moments leading up to it. Castiel is rapidly flitting through various Biggerson's diners around the world, all with the sound of people laughing and having fun. Then the sound just stops. He looks down to a table covered with blood, then turns to see the entire restaurant he was in just minutes before, completely massacred.
  • Crowley in general is nightmarish in season 8. Previously, he walked a fine line as Affably Evil, but now he no longer has any need to broker fragile alliances built on mutually assured destruction with the boys against Lucifer or the Leviathans: he's the last Big Bad on the playing field as of season 8, and he has no reason to hold back. Need an example? Check out the climax of the season, where Crowley intends to systematically slaughter everyone that Sam and Dean ever saved, in order, to get what he wants. This Evil looks a lot less Affable now.

    Season 9 
  • Hael goes from being a cute, quirky angel who built the Grand Canyon herself to a fucking monster. Seeing her seething, covered in blood and glass, ranting about how she'll "make Lucifer's fate look like child's play" is horrifying.
  • Abaddon in her very first episode of Season 9 has proved she is Nightmare Fuel. She wants war with humanity, for Demons to rule the earth, and is prepared to string up hunters just to get Dean's phone number, and unlike other Demon leaders like Lilith and Crowley she's willing to get with the times and equip her soldiers with assault rifles and wear kevlar body armour herself. Demons with assault rifles. That alone qualifies as Nightmare Fuel. And even worse is what she wants from Dean, Abaddon wants Dean as her new meatsuit, Squick factor of a girl being inside Dean's body added onto what she plans to do if she gets her hands on him,
    Abaddon: Oh. Well... you know... I've loved this body since the moment I first saw it. You're the perfect vessel Dean, you give a girl all sorts of nasty ideas. So go ahead and play hard to get, and I'll peel off this no demons allowed tattoo, and blow smoke up your ass.
    Dean: Oooh, well I gotta tell you between you and me, it is a horror show up there.
    Abaddon: It can get worse, trust me because once I'm on top I'll make you watch. And I'll use your body, have you ever felt an infant's blood drip down your chin? Or listen to a girl scream as you rip her guts out, because you will. You and me lover, we'll have a grand old time.
  • Dean slowly slipping into a homicidal mindset after getting the First Blade.
  • It gets worse. Perhaps the most horrific moment in Supernatural: Demon!Dean is born.

    Season 10 
  • The Comic-Con trailer for Season 10 finally reveals a hint of what Demon!Dean will be like, and he's freaking terrifying. Stalking Sam through the bunker, trying to kill him with a hammer, and all the time taunting him like every Demon enemy the Winchesters have ever faced has done to them. Also scary because this trailer confirms that the old Dean is gone, and he may not be coming back.
  • From 10.1, Dean fighting the Jerk Ass boyfriend outside the bar. He roughs him up, yeah, okay...but then he keeps going. And going. You can practically hear the man's skull cracking, and Dean just keeps going. By the time he stops the poor bastard is barely conscious.
  • The Things We Left Behind: The loan sharks should not have pushed Dean too far...
  • "Halt & Catch Fire" has a lovely scene where the ghost of the week cranks up a kid's music so loud that it causes it essentially turns his brain to mush and causes his eyes to burst out of their sockets, complete with blood streaming from his eyes. Kind of brings new meaning to the term "death metal."
  • "The Prisoner" has Dean on a Roaring Rampage of Revenge effortlessly massacre the entire Styne family and return to the bunker, where he kills not only Charlie's killer and the grunt with him, but the kid they had brought with them because, as a Styne, evil was in his blood. The worst part of it is the fact that he's so blissfully calm, with the same cold tone whether threatening someone or cracking wise. The worst part is when Dean at the beginning says he isn't sure if it's the mark warping his mind, or his own repressed rage at Charlie's death.
  • At the end of "Brother's Keeper", when Darkness bursts out of the ground like a gigantic demon cloud, spreading outward and consuming everything in its path, including the Winchesters
    • Everything about The Darkness is heavy Nightmare Fuel. It took God and all the Archangels; Michael, Lucifer, Raphael and Gabriel, just to imprison The Darkness, meaning that even together five of the most powerful beings in creation could not kill it. Repeat; GOD could not kill this thing. And now it's loose...
    • In addition, there's the fact there's no dialog from this thing. No ominous words. Just an unending, unearthly screeching.

    Season 11 
  • "Out of the Darkness, Into the Fire":
    • The Darkness infects people encompassed by its initial release and slowly turns them into amoral monsters with black veins running from their hearts up to their heads. They know it happens, they can spread it just by spilling blood onto others, and they have virtually no will of their own.
    • The baby which Dean and Sam save in this episode? Her name is "Amara." Anyone who has listened to news leading up to the premiere immediately realizes that the baby is the Darkness in human form. If they haven't, the Mark of Cain on the baby's shoulders will tell them.
    • Crowley is informed of the release of the Darkness, and we learn that it is only considered to be a fairy tale by demons. The scary part? Soon after the release of the Darkness, all of Hell heard screams echoing from Lucifer's Cage. In all likelihood, BOTH Michael and Lucifer were screaming in horror, meaning The Darkness is so wicked that two of the most dangerous beings in the Supernatural universe are terrified of it.
  • "Form and Void"
  • "Bad Seed"
  • "Our Little World"
    • The Reveal that happens during this episode. The Darkness is God's sister.

  • The many usages of the Creepy Child.
  • There's something skin-crawlingly freaky about the combination of a demon with a jolly old Slasher Smile (particularly if they have glowing eyes), just because you know they're contemplating how many fun ways they're going to torture you to death. Yes, Azazel, I'm talkin' to you.
  • Most humans (even the possessed ones) who look at the true form of an angel will have their eyes burned out and can even die from it if the angel is powerful enough.
  • The anime version can get away with a lot more gore than live-action, and the creators knew it. Notably, the adaptation of "Devil's Trap" cut out the car crash at the end since Dean getting tortured by Azazel was sufficient to hospitalize him.