!!The original novel:
* Clopin running through the crowd in the final battle scene with a HUGE SCYTHE, hacking at the horses and guards until he is surrounded by severed limbs. [[spoiler: He dies shortly afterwards.]]

[[caption-width-right:320:'''"And He shall smite the wicked...'''"]]
!!The Disney film:

The Disney adaptation of Victor Hugo's classic novel (which is hardly light reading in itself) is one of the [[DarkerAndEdgier darkest films ever produced by the studio]], featuring adult content like infanticide, the outright racist treatment and mass genocide of the gypsies, the abuse of religious power and creepy lust displayed by one of the most vile and frighteningly realistic villains in the history of animated films, and on-screen deaths for heroes and villains alike. As a result, it has [[NightmareFuel more than enough frightening moments and concepts to go around for the whole family]]. With all of this and the heavy adult themes present in the picture, its startling to realize that the film somehow got a G-Rating from the MPAA...

* The gargoyle that randomly comes to life just to finish off Frollo.
* The statues of the saints looking down at Frollo, and of the Virgin Mother's eyes opening as the lightning flashes in the prologue.
* Quasimodo tied to a spinning platform as the crowd [[ProducePelting throws eggs and vegetables at him]] is ''terrifying''. Fortunately, Esmeralda's intervention cuts the scene short.
** Ironically, it's a [[{{Bowdlerization}} bowdlerized]] version of a similar scene in the book, where he's whipped and mocked by the crowd.
** For some it is worse in this version because of how unprovoked that was. At least in the book, he was guilty of attempted kidnapping and nobody knew that the true culprit was Frollo.
* Judge Claude Frollo himself.
** Most of the other Creator/{{Disney}} villains were terrifying and evil in their own right, but Frollo trumps a majority of them due to being very, very normal and realistic. It gets better. The chances of you personally getting attacked by [[Disney/TheLittleMermaid a sea witch]], [[Disney/{{Aladdin}} a sorcerer]], or [[Disney/SnowWhiteAndTheSevenDwarfs an evil queen]] are slim to none. Are there genocidal racists out there who use religion to justify their beliefs and actions, and convince other people to follow them? Oh, yes.
** His ''very introduction'' applies. As the Gypsies are surrounded by soldiers, a huge shadow casts itself over the wall, revealed to be Frollo on his Bruiser of a horse. The pure ''terror'' in the male Gypsy's voice is as if he has come face to face with the devil itself; a textbook OhCrap reaction.
*** The part of the opening number that describes Frollo pretty much says it all about this guy:
---->''Judge Claude Frollo sought to purge the world of vice and sin.\\
And he saw corruption everywhere...except within.''
** During the opening sequence, Frollo looks positively ''demonic'' as he chases down and ultimately ''kills'' Quasimodo's poor mother, a Gypsy he thinks has stolen something. There's no discretion either--you get to see Frollo kill her ''on-screen''. And if not for the Archdeacon's intervention would very well have murdered baby Quasimodo himself as well. And what's worse is that Frollo thinks he is guiltless and in the right!
*** Heck, the way he talks about it with the Archdeacon. He's very much treating the whole situation as if it's just any other day for him, just another part of his job. That someone could be so casual about killing and woman and then trying to drown their child is chilling.
** His obsession with Esmeralda is quite [[NoYay creepy]] indeed, and not at all subtle.
** The VillainSong, "Hellfire". ''[[CrowningMusicOfAwesome Fabulous]]'' [[IncrediblyLongNote singer]], [[ArsonMurderAndAdmiration though.]]
*** When he says "Let her taste the fires of hell," you can actually hear the faint screaming of a woman being burned alive! Chills.
*** Cant forget the hellish monk choir draped in red robes who provides the chorus of ''Mea Culpa''. (Translates to "my sin, my sin, my most griveous sin")
*** It's a blink-and-you'll-miss moment, but when Frollo rushes through the monk choir, watch the direction of their [[NothingIsScarier unseen]] gaze. Their heads turn toward Frollo, as though their invisible eyes are laser-guided to follow him.
*** In the Italian version, he sings ''I'm waiting for you in Hell'' instead of just ''Choose me or your pyre''. He knows this obsession'll damn him but it's got him too tight. That's a sign that he's '''really''' losing it, in a horrifying way.
** Frollo looks very much like the bastard spawn of [[Franchise/{{Superman}} Lex Luthor]] and [[Franchise/{{Batman}} The Joker]] when he grins, and his cold glare is equally as frightening.
** When confronting Quasimodo for helping Esmeralda escape Notre Dame, Frollo goes from his [[TranquilFury usually polite and cold tone]] to flat-out UnstoppableRage as he shouts at Quasimodo and [[KickTheDog destroys his model replica of Paris]]. Quasimodo is lying on the floor, looking like a frightened child. [[FridgeHorror Makes one wonder if this was the first time Frollo ever shouted at Quasimodo like that]].
** The scene where he confronts Esmeralda while she's about to be burned telling her to "Choose me or the fire". Rather than fear, Esmeralda looks at him with visible disgust.
** He makes this chilling remark during his last encounter with the Archdeacon:
---> '''Frollo:''' The hunchback and I have unfinished business to attend to. And this time you will not interfere.
** In the following scene, Frollo attempts to stab Quasimodo, but the latter manages to fight back and grab the knife. What follows is Quasimodo being covered in red light and wearing a DeathGlare as he advances on Frollo and raises the knife, and Frollo himself is terrified as this sudden show of violence, when Quasimodo gives a TheReasonYouSuckSpeech and throws the knife away instead. While Frollo would have had it coming, the fact that the protagonist of a Disney movie briefly considered ''stabbing'' someone to death is beyond creepy.
** His final scene is the image above for a reason. While watching it, notice the color of his eyes and teeth. They're white like Esmeralda's and Quasi's, until he climbs the gargoyle to decapitate the Gypsy, ''then they turn yellow.''
* Imagine for a moment you are one of the soldiers under Frollo's command. Specifically, one of those attacking the Cathedral. You've stuck by the Judge through all of his monstrosities. The city is in revolt, the Cathedral is throwing beams, stone and molten lead at you. All of this is explainable. Then the birds attack, and everything is put into perspective. The Cathedral isn't attacking you. God is, and now the Devil has a claim on your soul. Pious or not, that would be terrifying.
* The [[{{HSQ}} last twenty-five seconds]] of [[http://www.youtube.com/watch?v=7CVwYC7WrP0 "Paris Burning"]] is the embodiment of fear and terror itself. In the film, it's played over a clip looking over the skyline of Paris, glowing bright red from all the fire and the smoke filling the sky, as though Frollo really has brought Hellfire to Earth.
** The chorus of "Kyrie Eleison" (meaning "Lord, have mercy") make both nightmarish and heartbreaking as well.
** ''And'' if you listen to the scene with headphones, as Frollo contemplates Esmeralda's escape, you can hear the muffled screams and cries of the townspeople - men, women, and children.
** The scene where Frollo explains his viewpoint of the Romani people to Phoebus. Hello, blatant genocide metaphor in a ''family-friendly movie.''
-->'''Frollo:''' I have been...''taking care'' of the Gypsies. (''crushes some ants under a finger with each word'') One...by...''one.'' Yet, for all my success, they have ''thrived''! *pulls off a tile to reveal an ants nest* I believe that they have a safe haven within the walls of this very city...a ''[[ItIsDehumanizing nest]]'' if you will. They call it the (''incredulous scoff'') "Court of Miracles"...
--> '''Phoebus''': What are we going to do about it, sir?
--> '''Frollo''': *smirks and smashes the tile back down, crushing every last ant under it*
--> '''Phoebus''': ...you make your point quite vividly, sir.
** Cant forget Phoebus first meeting Judge Frollo, in the castle torture chamber, where you get to hear the sound of the previous captain of the guard being ''tortured to death''. Frollo even advices the TortureTechnician to whip his victim slower, because doing it too fast will make the new pain drown out the old one (which he speaks of [[ButForMeItWasTuesday in the most eerily casual manner possible]]). Oh, and WHAT was the captains crime? "Disappointing" Frollo.
* In the Finnish dub, Frollo's tone of voice when he says "This is an unholy demon. I'm sending it back to Hell where it belongs." is [[ButForMeItWasTuesday as if he's discussing the weather]].
* If you interpret the gargoyles strictly as part of Quasi's imagination, not to mention how he behaves around Frollo, it really puts into perspective how much psychological damage has been done to this poor boy in his 20 years in isolation.
* Clopin giving a SlasherSmile when he was about to execute Quasimodo and Phoebus as spies. Thankfully Esmeralda stopped him before it was too late.
** The song beforehand qualifies too, [[LyricalDissonance if one takes the time to look at the lyrics]].
* The burning of the miller's house just because he and his family were supposedly hiding gypsies. Said family included at least one child and a ''baby''.
* At the end of the stage version, [[spoiler: when Quasimodo is about to throw Frollo to his death, Frollo cries out "You don't want to hurt me!" The gargoyles/chorus whisper to Quasimodo, ''"Yes you do."'']]
** [[spoiler: It's taken UpToEleven in the Paper Mills Playhouse version as you see Quasimodo's final grasp of sanity slip, ensures Frollo can't escape and hurls him off the roof.]]
** Even worse is the Paper Mills version. In the German version, only one gargoyle says the line. In Paper Mills, it's ''the entire chorus''. The effect is both chilling and awesome.
** If you really think about it, that line has a horrifically heartbreaking amount of weight behind it...yes, [[spoiler: Quasi ''does'' want to hurt Frollo. ''[[TheDogBitesBack He always has]]''...]]
* Frollo being scared for the first time in his life. Those statues seem to be staring into his very soul, and one can't help but shake the feeling that they ''really are.'' Especially when it focuses on the Virgin Mary....
* "Sanctuary (Reprise)" in the stage version. Taken UpToEleven in the American production, in which Frollo corners Esmeralda in her cell and [[AttemptedRape forces himself on her.]] The claustrophobia of the prison cell set as Esmeralda tries to crawl towards the bars and call for help despite knowing the cell is locked and nobody will free her just sells her helplessness and the discomfort of the scene.
-->'''Esmeralda:''' No-- ''no!'' A demon! Help! Help, please!
* As controversial as the sequel to the movie is, it does have the genuinely frightening [[{{Narcissist}} Sarousch]], whose treatment of Madeleine reeks of [[TheSociopath sociopathy]]. Also chilling is the AdultFear-riddled sequence where Sarousch holds [[WouldHurtAChild Zephyr hostage to ensure his safe escape]]; Zephyr sounds legitimately terrified when his father (who he had previously bragged about and clearly idolizes) does nothing to help him despite Zephyr crying out to both him and Esmeralda and both parents are understandably beside themselves with worry.