Nightmare Fuel / American Dad!

As this show was made by the same mastermind behind Family Guy, it shouldn't be surprising that this show has some horrifying moments.
  • Roger in general. He's a dangerously sociopathic and depraved Alien Manchild with countless disguises and personas that allow him to be anywhere and he has no qualms over killing and mutilating others to obtain even the smallest of advantages, sexual or otherwise. God help you if you piss him off, because no matter where you go, he will find you, as the Smith family once found out.
  • Roger and Steve switching faces in "Introducing the Naughty Stewardesses." Seeing Steve's exposed muscles is enough to make anyone want to puke.
  • Francine getting disfigured with acid in "Flirting with Disaster."
    • Not only that but her scream of pain when she had it thrown in her face. The whole concept of the latter half of the episode really.
  • Roger's body being completely dissected in "The Scarlet Getter".
    • Scarlet's death, where she is shot by Francine, rolls into the fireplace and instantly burns up into ash. Guess she really was dry.
  • In "Cops And Roger", a crooked cop Chaz is about to kill Stan when Roger is about to come to his rescue. Roger kills Chaz by smashing his head with his elbow and his head implodes
  • As seen above, Kisses after his Frankenstein-like operation in "Stan's Best Friend"... He went from being the cutest dog ever to everyone's nightmare for the next few weeks as soon as you see him...
    Roger: (laughs loudly) Is that Kisses? Oh, my God! (laughs some more) Oh, no! No, now this dog I like. He can stay.
  • Stan's eating disorder in "The American Dad After School Special". When we finally see how skinny he really is... it isn't pretty.
    Francis: You keep thinking you're fat, no matter how skinny you get!
    Stan: That's ridiculous! (takes off his upper shirt) Look at me!
    Francis: (gasp) It's worse than we thought!
    Stan: (actually as skinny as a skeleton) I know! I'm a huge tub of lard!
    • What's worse is that this is how anorexics see themselves in real life. No matter how horrifically skinny they get, their minds will always see themselves as fat and they'll work on being skinny, even if it kills them (which it will). The episode actually won a Prism Award for showing anorexia nervosa in a realistic light (and showing that eating disorders aren't just something insecure girls and women get; insecure men and boys can get them too).
    • And people with eating disorders will sometimes have a Jerk Ass imaginary "friend" who represents their ED thoughts, and he/she does tell them they are useless, fat, need to stop eating, etc.
  • Stan getting both his legs bitten off by a polar bear in "You Debt Your Life".
  • Steve-arino.
    • The scene where he juggles three disembodied cat heads in front of Stan and Francine. And takes bites out of them every few seconds.
    • The fact that if Stan was in complete control of parenting Steve, he'd turn out just like him.
    • The original Steve isn't much better; Francine's parenting turned a nice, relatively smart and well adjusted kid into a disgusting, shiftless asshole.
  • Barry's criminal mind when he doesn't take his medication. Special mention goes to the scene where a bug crawls into Barry's mouth while he's threatening Steve, and he just eats it.
  • The gruesome remains of the rat from "Season's Beatings"note , and is the result of Roger trying to make his ideal spiked eggnog. He gives a sip of it to the brown rat, which takes effect after a beat. It squeaks like a banshee while clawing at its head for a few seconds, then rips the black rat's head off and makes out with it, before putting it on its head like a hat and running a couple of laps around the cage in a frenzy, before finally pausing to vomit up a fountain of blood and keel over dead. Then its chest explodes.
    Roger (already drunk as it is): Perfect!
  • A scene from "Toy Whorey" where Stan and Steve meet a guy who uses hand puppets as the prostitutes for his whorehouse (think Mitch Connor). One of the puppets has human teeth and tongues (and is later seen vomiting).
  • Roger cutting off Jeff's skin and grafting it onto his own in "Love, American Dad Style". Worse, Roger nearly did the same thing to Hayley out of love.
    Roger: The hat's keeping it all together.
    • Roger surprising Hayley with Christina Aguilera's severed larynx.
      • And Roger using it like a whistle with Aguilera's voice actually coming out of it.
  • The Lady Bugs from "Not Particularly Desperate Housewives" never got any mention? They were this close to killing Francine by ramming shopping carts into her, had Linda Memari not stepped in.
    • The episode itself became darker as Francine discovered that the woman who was found murdered in the parking lot in broad daylight was Anne Flemming, a former member. Just as Francine thought she was safe at home, to her horror she recognized burns on Stan's shirts and her seasonings disorganized. A phone call right after confirmed that The Lady Bugs were able to get to her friends, family, and her seasonings and even rigged her vacuum cleaner to explode upon turning on, which sends Roger flying.
      • The revelation that every woman in Langley Falls is a member of The Lady Bugs is horrific: Francine runs to the police station where an officer tries to get Francine to calm down. Francine does so, but jumps at the fact that the woman had called Francine by her name.
  • In "Tears of a Clooney", Stan handcuffs Francine to a radiator so she won't go out and kill George Clooney. Francine escapes by cutting her own hand off.
  • In "Tearjerker", the title villain (played by Roger) creates a film so sad, that it literally makes people die crying. Roger then shows Stan and Sexpun (Francine) the results of the critics' screening, with their dead, pale, teary-eyed bodies.
    • The agent being drowned in Tearjerker's statue in the beginning.
  • A Brainwashed and Crazy Hayley in "Haylias".
  • Stan, Francine and Jesus getting buried alive by the Antichrist in Rapture's Delight. They're only trapped for a few seconds, but the fact that Francine's scream gets drowned out to silence as they're buried is rather chilling. And it happens so quickly as well.
    • Overall, that whole episode is pretty disturbing, which is why it's probably a good thing it's not canon. Gems such as Klaus being stuffed and mounted with a horrified expression on his face, the entire world being in ruins, Stan accidentally killing an innocent child because it looked like a stereotypical Creepy Child and he thought it was the Anti-Christ, the list goes on...
  • In "Fartbreak Hotel", Francine's Imagine Spot when she stabs Roger, decapitates Stan with a butcher knife, and chases down Steve and snaps his neck.
  • Stan's presentation on why above ground sprinklers are bad in "Roy Rogers McFreely" consists of showing a crude cartoon that depicts a little girl falling on and being impaled by a sprinkler, which shoots blood into her friend's face.
  • A scene from "National Treasure 4: Baby Franny: She's Doing Well: The Hole Story" where Henri Watkin sees his wife again... and bites off her nose.
    • Made worse when you realize why he likely did it. He probably had a lot of pent-up aggression towards her, since we don't get any indication that she attempted to send rescue for him or simply have his body recovered. Imagine spending over 40 years trapped underground and realizing that the person you love has left you to rot in a well?!
  • In the episode "Naked to the Limit, One More Time", Roger throws Jeff into the UFO's beam that was meant to take Roger back to his planet. We're pretty sure we'll never hear much of him again...
    • We do, though the fate of those abducted by Roger's people is scary: they are kept as slaves on the shopping mall-style gigantic spaceship (which itself isn't really that scary). You can leave at any time, as long as you pass the love test: a test that proves the alien abduction separated you from your true love. If you fail you get castrated, and it's rigged for you to fail.
    • It's no surprise either to find out that this brutal punishment is also Roger's fault, for cheating on Emperor Zing and breaking his heart.
      • Roger must really hate Jeff— he's also skinned him alive and left him steeping in a bathtub full of his own blood, dropped a canoe on him, and violently beaten and mugged him right in the Smiths' hallway.
  • While the actual reason why Stan doesn't want to enter a bike race with Steve is a lot better, the story he tells about his friend getting hit by a train and having pieces of the bike lodged into his organs seems a little... unnecessary.
  • "The Boring Identity" has Stan, Bullock and others killing workers at Doug and Buster's in painful and gory ways.
  • In the episode Hurricane!, the family gets caught inside their house, now upside down, during a flood. The scary part is when a shark swims into their house and gores Hayley. Throughout the rest of the episode, they are menaced by the beast and can never tell when it will surface and attack. Not to mention Stan making things worse at every turn, including letting a bear into the house, which ends up teaming up with the shark, and electrifying the water.
  • Klaus' decaying human body in the episode Da Flippity Flop. And later, he steals Stan's body.
    • Klaus' situation altogether. His human body was lost and he's been trapped in the body of a goldfish for decades, simply because the CIA didn't want him winning a gold medal for East Germany in the 1986 Winter Olympics. Even if he wasn't apparently a nice guy before getting turned into a fish, he still didn't deserve that awful fate.
  • "Moon Over Isla Island": the dictator Juanito tripping over the upwards escalator after choking a corn dog, which in addition to killing him, leaves his body disfigured.
  • When Stan visits Roger's mind in "Brains, Brains and Automobiles", a bird lays an egg on the boat that hatches into a Klaus fish with Steve's glasses and Hayley's hair. It then makes a horrible screeching sound.
  • The mutant clone mix of Steve's girlfriend Glitter and Stan's dodo Darren from the end of "Steve and Snot's Test-Tubular Adventure".
  • Francine accidentally slitting Steve's throat at the end of "Office Spaceman".
  • The ghost of Francine's unsatisfied dead sex drive from "Poltergasm". Specifically, the demonic face on Roger's surveillance camera.
    Roger: (recording) 3:43... Just pissed myself.
    • Klaus' Sanity Slippage over being stuck in his hotel room with a broken back in Atlantic City with the hotel guide menu on a constant loop with the remote out of reach.
  • Steve's "war flashback" from "In Country... Club", which is depicted in an Art Shift to a more realistic style, where a soldier is graphically split in half by a helicopter blade.
  • Stan's transformation into a woman from "Stan Goes on the Pill".
  • "Blood Crieth Unto Heaven" is rather creepy and mostly based on the atmosphere and lacks many actual jokes the show might normally have.
  • In the most recent episode "The Longest Distance Relationship" Jeff and Sinbad find a wormhole that takes them back to Earth and so returns so he can return to Hayley. However the wormhole takes Jeff 60 years into the future. He is still reunited with Hayley and gets to see what happened to all the Smiths in the future. Francine has had loads of plastic surgery to look young still but looks horrifying. This was most likely intentional.
  • In the episode "Hot Water," when the evil hot tub voiced by Cee-Lo Green reveals its psychotic nature. Not only did it manage to estrange the Smith family, but it swallowed Principal Lewis whole, drowned Francine and blasted Stan out the window with its jets, effectively killing him. The disturbing part is that the episode would have been the very last episode had Fox not renewed it.
  • The last scene of The Kidney Stays in the Picture is supposed to be a humorous Brick Joke close-out. Trouble is the "brick" was a rather gruesome explanation of kidney farming Roger gave to Steve earlier in the episode in order to paralyze him with terror and steal his sandwiches. The joke stays mostly intact until the ending, where he actually does it so Stan will have a kidney for Hayley in case the blood test does say that Hayley's biological father is the man Francine had sex with the night before her wedding (which the viewer never finds out).
  • In "The Vacation Goo", the family go on vacation and meet a girl named Becky. Through a series of misadventures, they end up on an island being hunted for sport, and wind up completely sealed into a cave. Scary, right? Not the worst part. Becky is killed by the cave-in and the family, starving, resorts to eating her corpse.
    • The fact that the "hunt" was a literal game intended to welcome guests to the island, and that she died and was effectively eaten for nothing.
  • Gwen Ling, when you first heard her, she was the hot dumb sister to adopted Francine. As of Now and Gwen, she is hot, but she is actually intelligent and a criminal. She ran an illegal sweatshop in the Smiths' garage while getting away with it because she took the fall for Francine burning down their old school. Worse, there was no evidence that the sweatshop was gone and Gwen was going to burn down the old school again, but frame Francine for arson, the sweatshop and the deaths of the people who worked there. While Francine took the blame for the school burning down, she got off while Gwen was sent to prison for a long time, but not before she swore revenge on the Smiths.
  • In "Holy Shit Jeff's Back!", Hayley tries to rescue Jeff from a group of aliens called the Collectors, then when she gets on their ship, she sees Jeff's body parts floating in liquid, and then we learn those aliens used to be the Dissectors.
    • To expand upon this, the Collectors put specimens and objects from every planet they come across on display, hence their name. To acquire an ideal specimen, such as humans, they first abduct one to disguise themselves as and blend into society so they can send them through a machine called the Blorfer, which slowly and painfully grinds up the specimen to transfer to the mothership. They got their original names because they dissect the first specimen they abduct, which is done by strapping them to a chair and cut them open with a buzzsaw while they are still conscious. It nearly happened to Hayley and Roger, had Stan not taught them about empathy, self-sacrifice, and frozen yogurt.
  • In "Minstrel Krampus", Stan and Santa's elves killing all of the Animate Inanimate Objects that Steve had befriended, they bleed despite not being human, which makes their deaths all the more disturbing.
  • The living turducken in "Kung Pao Turkey."
  • In "Roger Passes the Bar", he attempts to meditate at one point to get it off of his bucket list - only to be met with a sudden Jump Scare of screeching skeletons surrounded by flames for the span of a second, instantly taking him out of it as he writes off to try again some other time.
  • "Anchorfran" featured a subplot about Roger becoming obsessed with a character from a board game, and searches for the male model used for the character's picture. Unfortunately, Roger discovers the model is nothing like the character. When Roger is seen driving home with Klaus, Hayley, and Steve, they ask him why the phone from the board game is covered in blood, and what is inside a jar Roger brought back with him. Roger calmly responds "Dylan was bad. And now we have the jar."
  • "Criss Cross Applesauce: The Ballad of Billy Jesusworth": No, not Roger's storyline, but Steve's. It involves Steve getting stuck in a locker after getting away from Mertz. Then Principal Lewis falls on one of the girls. It actually gits dark when we find out the Principal Lewis actually banged Snot's mom. Then twelve adults with their guns out. Luckily, Steve, Snot and Mertz escaped just when the adults were laughing.
  • Roger's method of getting Jeff a human body by being pregnant (which isn't scary); he gets pregnant via eating the top of Jeff's skull and sucking out his brain like a noodle.
  • Stan's No-Holds-Barred Beatdown to Roger at the end of "Frannie 911". While it is Roger, that doesn't make the realistic sound effects and cries of pain any less disturbing. As an added bonus, it's happening offscreen and it's cut off by the end credits, so the viewer can only wonder just how far the beating is being taken.
  • In "Permanent Record Wrecker", Roger bets a coffee shop guitarist named Jimal, whom he insults, that if he can beat him in a guitar play-off the loser will never show up to the shop again. Roger struggles for the better part of the Episode until he makes a Faustian Bargain, selling his soul to the Devil (and seeming almost oblivious) in order to become an expert and beat Jimal. When Jimal asks if he can keep his job and keep playing in the shop, Roger offers to allow it if Jimal cover the cost of his lessons...cue a flame from Hell spouting up from beneath Jimal and dragging him off to Hell while Roger claps his hands. Not so much awesome for Jimal.
  • Stan's finished attempt to perform reconstructive surgery on Hayley's face in her sleep in "The Mural of the Story". We also see the process of him doing the surgery, which starts with him popping her eyes out of their sockets with a chisel before cutting her face off.