[[quoteright:350:http://static.tvtropes.org/pmwiki/pub/images/harvey_dent_becomes_the_villain_by_the_end_of_the_film.jpg]]
[[caption-width-right:350:[[WebVideo/RedLetterMedia Oh My God! What is wrong with your face?.]]]]
* The Joker himself is a potent combination of NightmareFuel and premium ParanoiaFuel. If he's after you then he will get to you somehow, no matter how impossible it should be, and carve a smile onto your face with a knife.
** In most incarnations the Joker is somewhere on the scale between comedic violence (Nicholson) and violent comedy (Romero and Hamill). What made Nolan/Ledger's Joker so scary is that Nolan removed the comedic aspect, but Ledger still played him as if he was doing everything [[ForTheLulz because it amused him]]. It goes beyond psychopathy and borders on BlueAndOrangeMorality.
** If the Joker ever asks if you want to see a [[EyeScream magic trick]], the correct answer is and always will be ''no''. He'll do it anyway, but at least you saw it coming.
*** (Rim shot.)
*** But how would the guy see the magic trick with that pencil...oh.
*** Ever notice that [[spoiler:the Joker actually stabbed the sharp end into the table? That means he forced the ''dull, rubber end'' through the guy's skull.]]
** One of the most terrifying Joker-related scenes comes from when Batman interrogates him [[spoiler:and the Joker reveals he's kidnapped Rachel in addition to Harvey, and they both have mere minutes to live.]] Batman goes berserk and starts trying to beat [[spoiler:their]] location out of the Joker, up to bashing his head against a reinforced glass window so hard the window actually cracks. All Batman's severe beating does to Joker? It only makes him laugh HARDER!
*** It only gets worse when you think about the Joker's line, "You have '''''nothing''''', ''nothing'' to threaten me with-nothing, with ''all'' of your strength!" [[FridgeHorror Just think about what must have happened to the Joker for that to be true]].
*** YMMV on this, but this troper considers it an even more scary prospect if '''''nothing''''' happened to the Joker. If he just woke up one morning and decided to do these things for the evulz.
** Right at the very end, when [[spoiler: Batman throws the Joker off the rooftop. Joker's reaction? Laughing maniacally every inch of the way... and being ''disappointed'' when Batman saves him]].
** A really horrifying scene is where the Joker tells Rachel the second scar story. Something about the whole scene reeks of sexual predation, and to make it even more horrible, [[spoiler:there's the fact [[GroinAttack she knees him in the nuts]], which is usually the best defense a woman has against a male attacker, and he actually LIKES it!]]
** One of the most NightmareFuel-filled moments was surprisingly one of the most low-key; when the Joker is videotaping/shooting his nightmare-porn of Brian the Batman Impersonator and orders Brian to "Look at me! '''Look! At! Me!'''"
*** That was the scene that, aside from the Magic Trick, made ''everyone'' in the theater sit up and take notice of Ledger's performance.
*** That scene gets worse when Brian is done delivering the Joker's message and [[YouHaveOutlivedYourUsefulness is of no more use to him]]. The camera cuts out just as Joker descends on the panicked hostage.
*** The distorted [[LastNoteNightmare sounds that]] are heard just before the tape ends, especially since [[NothingIsScarier we can't make out]] ''[[NothingIsScarier anything]]'' [[NothingIsScarier happening in the last bit of footage]]...
*** "Batman must take off his mask and turn himself in. Oh, and every day he doesn't, people will die. Starting tonight. ''I'm a man of my word''." *laughs*
*** When the newscaster says, "Sensitive viewers, be aware. The image is disturbing," he's not kidding.
*** The really scary part is it's the ''only'' time Joker loses his cool and stops acting like "The Joker."
** The Joker's little WouldYouLikeToHearHowTheyDied speech.
--> "Do you want to know why I use a knife? Guns are too quick, you can't savor all the.....''little emotions''. You see, in their last moments, people show you who they really are. So in a way, I knew your friends better than you ever did. Would you like to know which of them were cowards?"
** The defining moment for the Joker was standing in the street as the Batpod race towards him muttering "Come on, come on, I want you to do it, I want you to do it." He is utterly prepared to actually die just to corrupt the Batman. After that, you realize that there was really no stopping him.
*** And when Batman avoids him and is knocked unconscious as he crashes? The Joker turns around, looks bored for a minute, then flicks a switchblade out from his pocket and starts towards him. Thank god [[spoiler:Gordon intervened]] because let's ''not'' think about what the Joker had in mind if he hadn't been stopped.
** As seen in the page picture, the Batman wannabe being hung from the building. It only gets noticed when it swings down from off-screen and [[JumpScare slams into the window]].
* The Joker pales in comparison to Two-Face's scar-ified half of his face. ''What'' is keeping his '''EYEBALL''' in the '''SOCKET!?'''
** The first iterations of Two-face were more realistic, with less extensive damage; test audiences actually found the more subdued, realistic damage to be so unsettling, to the point of unintentional NauseaFuel, that the Two-Face we currently see was used instead.
** The optic nerve and the eye muscles, which apparently did not receive any damage from the fire, since he can move his left eye just as well as the right one.
** The worst part about Two-Face was when he [[spoiler: kidnapped Gordon's family, and Commissioner Gordon, whom many tropers strongly identify as a father figure, cried and begged helplessly for their lives.]] The thought of a father (whose job is being ''a policeman,'' no less) being unable to protect his children is just pure NightmareFuel, let alone AdultFear at it's finest.
-->'''Two-Face:''' Go ahead. Tell him it'll be alright. ''Lie.''
** It says a lot that, in a movie featuring the most terrifying version of the Joker ever, the scariest scene is one that he's not even in.
** How about where Batman drops the guy off the balcony and (presumably) shatters the guy's legs?
* Alfred's [[https://www.youtube.com/watch?v=efHCdKb5UWc speech]] on being in Burma, just because of how true it felt.
-->'''Alfred:''' A long time ago, I was in Burma, my friends and I were working for the local government. They were trying to buy the loyalty of tribal leaders by bribing them with precious stones. But their caravans were being raided in a forest north of Rangoon by a bandit. So we went looking for the stones. But in six months, we never found anyone who traded with him. One day I saw a child playing with a ruby the size of a tangerine. The bandit had been throwing them away.
-->'''Bruce:''' Then why steal them?
-->'''Alfred:''' Because he thought it was good sport. Because some men aren't looking for anything logical, like money. They can't be bought, bullied, reasoned or negotiated with. Some men just want to watch the world burn.
** When Alfred later finishes the story with how they caught the bandit, he flatly states, "We burned the forest down." Who watched the world burn? ''Alfred did''. He was once a man so cold and unrelenting that he would burn everything around him to get at his objective.
* Some premature FridgeHorror here, if that makes sense: as of the end of ''The Dark Knight'', Gotham blames Batman just as much as the Joker for the events of the film, so much so that they are willing to throw Batman to the dogs on the off-chance that the Joker will keep his word and leave Gotham. And now, as of the ''Rises'' trailer, the police department is now willing to forgive Batman of the murders he took credit for if he stops Bane. Not only is this a neat little parallel of the situation before, but more terrifyingly, consider the implications of them wanting to bring back Batman: [[AlwaysABiggerFish there is someone]] [[UpToEleven more terrifying and destructive than]] [[MonsterClown the]] [[SelfDemonstrating/TheJoker Joker]].
** Actually, Batman told Gordon to keep persecuting him and blaming Batman for the death of Harvey, so that the public won't be vulnerable to the corruption that would ensue.
* A fat lunatic complains of stomach pains and rants that the Joker told him that a light would come from his stomach in this [[PsychopathicManChild high, childish tone]]. [[spoiler:It comes out of his stomach all right...in the form of a bomb the Joker ''implanted inside of him'']].
* Three words: "Why so serious?"
* Harvey Dent screaming in silent agony in the hospital after realizing that [[spoiler: Rachel died]]. From there his SanitySlippage is evident, especially following SelfDemonstrating/TheJoker's disturbing HannibalLecture on him.
** The Joker handing Harvey Dent a gun and telling him to unleash chaos on the city, even holding the gun to his head in a further attempt to corrupt Dent.
* The Joker aims to destroy Gotham City from the inside out, and part of his "plan" involves corrupting the city's heroes Batman and Harvey Dent by making their lives hell until they snap. Thankfully, he doesn't succeed with Batman. Harvey Dent, however...
* The songs [[http://www.youtube.com/watch?v=UDLG-pO87Oc&list=PL569070461A648D9D&index=7 A Little Push]] and [[http://www.youtube.com/watch?v=LRYKyhof6b4&list=PL569070461A648D9D Watch the World Burn]], which play when Harvey interrogates Thomas Schiff and when he's threatening Gordon's son. The first sounds like something right out of Film/BatmanBegins.
** Almost the entirety of [[http://www.youtube.com/watch?v=1zyhQjJ5UgYthe Joker's theme]].
* [[http://www.cracked.com/article_20268_6-movie-characters-you-didnt-know-died-horrible-deaths_p2.html As pointed out]] by ''Website/{{Cracked}}'', when the Joker burns his share of the cash, you're too busy watching Heath Ledger's incredible "let's see how loyal a hungry dog really is" performance to notice or remember, "hey wait, wasn't Lau on top of that pile at the beginning of this scene?"
** In the novelization, Lau is unconscious near the bottom...and wakes up just as the flames reach him...