Quotes by, to, and about [[CompleteMonster the worst of the worst]]. Spoilers abound and are not whited out.
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->''"I met him, fifteen years ago; I was told there was nothing left; no reason, no conscience, no understanding; and even the most rudimentary sense of life or death, of good or evil, right or wrong. I met this six-year-old child, with this blank, pale, emotionless face, and the blackest eyes... the devil's eyes. I spent eight years trying to reach him, and then another seven trying to keep him locked up because I realized that what was living behind that boy's eyes was purely and simply...evil."''
-->--'''Dr. Sam Loomis''', about '''Michael Myers''', ''Film/{{Halloween 1978}}''

->''"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."''
-->--'''Alfred Pennyworth''', ''Film/TheDarkKnight'', about '''SelfDemonstrating/TheJoker'''

->''"His intellect remains intact, 'but his heart was stripped of any morality or decency."''
-->--'''Garai''', on '''Michio Yui''', ''Manga/{{MW}}''

->''"I am the Devil!"''
-->--'''Dr. Weil''', ''VideoGame/MegaManZero''

->''"There are a lot of ugly things in this world, son. I wish I could keep 'em all away from you. That's never possible."''
-->--'''Atticus Finch''' to his son Jem, referring to Bob Ewell, "Literature/ToKillAMockingbird"

->''Mario:''' Mama, you know who you're talking about. You know what he's done.\\
'''Luigi:''' If he had the chance he'd kill you for fun and dance around in your skin! He's a monster!\\
'''Peach:''' A psychopath! A cannibal! I haven't forgotten...
-->--'''Mario''' and '''Luigi''' warning '''Peach''' about interrogating '''Kirby''', ''WebVideo/ThereWillBeBrawl''

->''"Look at me! I am sublime!!! I am the true face of evil!!!"''
-->-- '''Luca Blight''', ''VideoGame/SuikodenII''

->''"I cast about for a man to aid me, and chose the Falcon, because of his utter lack of all characteristics men call good."''
-->--'''Salome''', from "Literature/AWitchShallBeBorn", about '''Constantius'''

->''"He was obsessed with becoming the Devil. So much he killed his own wife; for that he butchered innocent people, too. He's the most vile kind of creature."''
-->--'''Lady''', ''VideoGame/DevilMayCry 3'', about her father '''Arkham'''

->''"This man Makarov is fighting his own war and he has no rules. No boundaries. He doesn't flinch at torture, human trafficking, or genocide. He's not loyal to a flag or a country or any set of ideals. He trades blood for money."''
-->--'''General Shepherd''', ''VideoGame/ModernWarfare 2''

->''':Bertrand''': Cole, don't press me. If I turn into that thing again, oh, there will be blood on our hands.\\
'''Cole''': Blood? You're the one trying to trick humanity into killing anybody with a power!
-->--''VideoGame/InFamous2''

->Do you understand why I would kill my cousin now? What my goal was? ...From the day I was born to the day I died, I never helped anyone!
-->--'''Dahlia Hawthorne,''' ''VisualNovel/PhoenixWrightAceAttorney: Trials And Tribulations''

->''"His knowledge remained woefully incomplete, Harry! That which Voldemort does not value, he takes no trouble to comprehend. Of house-elves and children's tales, of love, loyalty and innocence, Voldemort knows and understands nothing.'' ''Nothing''. ''That they all have a power beyond his own, a power beyond the reach of any magic, is a truth that he has never grasped."''
-->--'''Albus Dumbledore''', ''Literature/HarryPotterAndTheDeathlyHallows''

->''"Dragovich has no fear, no conscience, no weakness."''
-->--'''Robert [=McNamara=]''', ''VideoGame/CallOfDutyBlackOps''

->''"I'm the worst kind of person there is."''
-->--'''Ali Al-Saachez''', ''Anime/MobileSuitGundam00 ''

->''"If there is such a thing as the work of the Devil, then there's no doubt it's what happened in this incident."''
-->--'''Riza Hawkeye''' on '''Shou Tucker''', ''Manga/FullmetalAlchemist''

->''"All my life, you told me that the world was a dark, cruel place. But now I see that the only thing dark and cruel about it is people like you!"''
-->--'''Quasimodo''' to '''Frollo''', ''Disney/TheHunchbackOfNotreDame''

->''Iris... you are not a human after all...''
-->--'''Freudia Neuwahl's''' comment about '''Iris''' after laying Count Michael Zeppelin back to restin ''{{Rosenkreuzstilette}} Freudenstachel''

->''"The Boltons have always been as cruel as they are cunning, but this one seems a beast in human skin."''
-->--'''Robett Glover''' about '''Ramsay Bolton''', ''Literature/ASongOfIceAndFire''.

->''"If ever a man deserved to die screaming it was Gregor Clegane."''
-->--'''Doran Martell''', ''Literature/ASongOfIceAndFire''.

->''"Your upbringing made you a villain, you say? It didn't!! You've been evil since your birth!"''
-->--'''Robert E. O. Speedwagon''' about '''Dio Brando''', ''Manga/JoJosBizarreAdventure''

->''"His eyes, unfathomably empty, devoid of all compassion... all humanity... No one has eyes like that... no one!"''
-->--'''ComicBook/CaptainAmerica''' on the '''ComicBook/RedSkull'''

->''"The guy may seem plush and huggable on the outside, but inside, he's a monster!"''
-->--'''Buttercup''' describing '''Lotso''', ''WesternAnimation/ToyStory3''

->''I think his subconscious had been corrupted by a destructive, murderous impulse. But for some reason, no one seemed to care about how abnormal he was. Maybe it was because it’d been more than 80 years since the last Akki appearance. Perhaps it was because K’s mother was on the Town Council and was known for being difficult… or it might’ve been that, by then, nothing'' could’ve ''been done. All of the factors came together. Then, one day, tragedy struck… No one was able to lead an effective counterattack against the Akki. Their hands were tied by Death Feedback and the unyielding restraints on violent impulses. In other words, it was impossible to mount a direct attack on other humans. Approximately 1000 citizens of Kamisu 66 died... all because of K.''
-->--'''Tomiko Asahina''' describing '''K''', ''Literature/FromTheNewWorld''

->''"It would appear that I still have a bit of humanity left within me... I'll just have to rid myself of it!"''
-->--'''Ragyo Kiryuin,''' ''Anime/KillLaKill''

->''"Johnny Favourite was as close to pure evil as [my mother] ever wanted to get."''
-->--'''Epiphany Proudfoot''', ''Film/AngelHeart''

->''"So really you're just... a killer. A monster. The stuff of nightmares."''
-->--'''Series/{{Dexter}}''', to '''George King''', AKA "The Skinner"

->''"Not feeling, never satisfied, doesn't know if he's doing the right thing or the wrong thing, but above all, doesn't care."''
-->--'''WebVideo/TheNostalgiaCritic''' describing '''Anton Chigurh''' from ''Film/NoCountryForOldMen'', ''Top 11 Scariest Performances''

->''"[Gunther Lutze] was a black-uniformed strutting animal, whose function in life was to give pain, and like his colleagues of the time, he shared the one affliction most common amongst that breed known as Nazis: he walked the Earth without a heart."''
-->--'''The Narrator''', ''Series/TheTwilightZone'', "[[Recap/TheTwilightZoneS3E74DeathsHeadRevisited Death's Head Revisited]]"

->''"[Y]ou're an abomination. An outrage against nature! You've perverted everything I've taught you and used it for evil! And you have to be stopped!"''
-->--'''John Simonsen''' to '''Chucky''', ''Film/ChildsPlay''

->''Drago Bludvist is a madman, without conscience or mercy, and if he’s built a dragon army, Gods help us all.''
-->--'''Stoick''' on '''Drago Bludvist''', ''WesternAnimation/HowToTrainYourDragon2''

->''His main problem seems to be that he sees things differently from other people, in that he sees other people as things. This gets him into a spot of trouble early on, as his assassinations often include the brutal murders of not just the target, but also their family, their servants, and very often their pets.''
-->--''Discworld/{{Hogfather}}'', description of '''Jonathan Teatime'''

->''Myers was meant to be evil personified. He wasn't a killer who had been wronged, he wasn't seeking vengeance or profit, he wasn't trying to prove a ''Franchise/{{Saw}}''-like point or haunting the place where he'd been abandoned by negligent teens. He was literally just a big, psychotic prick who defied sense.''
-->-- '''WebOriginal/{{Cracked}}''' on [[Franchise/{{Halloween}} Michael Myers.]]

->''"Do you know what the most frightening thing in the world is? Nothing. That's what I found in the boy. No conscience, no fear, no humanity - just a black void. (...) I sat there and watched as he destroyed everything around him; not for a belief in evil. Not for any reason at all."''
-->--'''The demon''', about '''Ryan Anderson''', ''Series/{{Angel}}'', "[[Recap/AngelS01E14IveGotYouUnderMySkin I've Got You Under My Skin]]"

->''Everything in my life died as I saw the once happy and bubbly eyes that I once saw in my wife become vapid and emotionless. A smile crept across her face, one that makes me quiver in malaise upon the slightest thought of it. This wasn't possession. This wasn't mental illness. This was just... Evil. So evil.''
-->--'''The narrator''', about '''his wife''', ''Dating Game'' {{Creepypasta}}

->''My name is Cletus Kasady and I kill people and I love it. I know nine million ways to kill a body and I love every single one of them. All dull day every day right up until I hit the hay I think of bodies. Bodies burst. Bodies slit right up the middle and shared across a hundred nice little gardens. And when I sleep I dream of ways to kill a body that ain't nobody thought of yet.''
-->--'''Cletus Kasady''', ''ComicBook/{{Carnage}}: Mind Bomb''

->''"First there was the collapse of civilization: anarchy, genocide, starvation. Then when it seemed things couldn't get any worse, we got the plague. The Living Death, quickly closing its fist over the entire planet. Then we heard the rumors: that the last scientists were working on a cure that would end the plague and restore the world. Restore it? Why? I like the death! I like the misery! I LIKE THIS WORLD!"''
-->--'''Fender Tremolo''', ''Film/{{Cyborg}}''

->''"You're heartless, ambitious, arrogant, insidious, and without shame or empathy. More, you're a murderer."''
-->--'''Darth Plagueis''' to his disciple '''Palpatine''', ''Literature/DarthPlagueis''

->'''Teller:''' It’s rule by fear. You’re not just demanding submission, you’re generating evil.\\
'''Tarkin:''' Then evil will have to do.\\
'''Teller:''' What transforms a man into a monster, Tarkin?
-->--''Literature/StarWarsTarkin''

->''"I wouldn't call him immoral so much as amoral, he has no morality whatsoever. He doesn't even have a concept of morality."''
-->--'''Creator/StephenFry''', describing '''Reaver''', ''Franchise/{{Fable}}''

->''"I will be the U.S. Steel of murder."''
-->--'''Dandy Mott''', ''Series/AmericanHorrorStoryFreakShow''

->''"Had I known one human's death would pain you so, I would have killed more. And kill more I shall. Carry that agony with you to oblivion, Superman."''
-->--'''Darkseid''', ''WesternAnimation/SupermanTheAnimatedSeries''

->''"Tarkin, if ever there was a shred of humanity in you or these twisted creatures of yours, it's dead now. You're at war with life itself."''
-->--'''Princess Leia Organa''', from the ''Radio/StarWarsRadioDramas'', after '''Grand Moff Tarkin''' wipes out her home planet.

->''"Most men would question the decency of a decision like [mass-murdering your own people]. Some would become paralyzed with despair and regret. Rest assured, I am not most men."''
-->--'''Baron Wolfgang Von Strucker''', ''ComicBook/SecretWarriors''


->'''Barry the Chopper''': She seems to like taking things apart so I thought I'd do the same to her! Watch closely and maybe you'll get to see what makes her tick!\\
'''Edward''': You sick...why are you doing this?!\\
'''Barry the Chopper''': Why? Hmm...what a strange little question that is. I guess it's because I enjoy it. The first person I killed was my wife. She was nagging me about something and without meaning to, I chopped her to pieces. But when I saw how finely I could slice her, I wanted more. To reduce people to their most basic building blocks, and I wanted everyone to see...\\
'''Edward''': That's stupid. Why would someone kill for such a ridiculous reason?\\
'''Barry the Chopper''': [looks at Edward insanely] Because they can! Given the slightest provocation, anyone can do it.\\
'''Edward''': Stay back!\\
'''Barry the Chopper''': Men have morals, but send them to war and they have no problem slaying each other in the most brutal fashions. Now why do you think that is?\\
'''Edward''': I have no idea...\\
'''Barry the Chopper''': [cuts Edward's shoulder slightly] 'Cause deep down inside we all want to kill, most just need the go-ahead from their society. Like the State Alchemists I saw in a village, slaughtering helpless people. Splat! Big fountains of blood!
-->--''Anime/FullmetalAlchemist'', "Philosopher's Stone"

->''"So come now...Children of Nibiru! Be strong, and set your master free, so that I may bathe this world...in fire!"''
-->--'''Nibiru Entity''', ''WesternAnimation/ScoobyDooMysteryIncorporated'', "[[Recap/ScoobyDooMysteryIncS2E25ThroughTheCurtain Through the Curtain]]"

->'''Rose''': Doctor, what happened?\\
'''Davros''': Electrical energy, Miss Tyler. Every atom in existence is bound by an electrical field; the Reality Bomb cancels it out. Structure falls apart. That test was focused on the prisoners alone; full transmission will dissolve every form of matter.\\
'''Rose''': The stars are going out...!\\
'''The Doctor''': [horrified] The 27 planets, they become one vast transmitter, blasting that wavelength-\\
'''Davros''': Across the entire universe! Never stopping, never faltering, never fading. People and planets and stars will become dust! And the dust will become atoms, and the atoms will become...nothing. And the wavelength will continue, breaking through the rift at the heart of the Medusa Cascade into every dimension, every parallel, every single corner of creation! This is my ultimate victory, Doctor! THE DESTRUCTION OF REALITY ITSELF!!
-->--''Series/DoctorWho'', "[[Recap/DoctorWhoS30E13JourneysEnd Journey's End]]"

->''"You're the lowest of the low, Kurata! You're more of a snake than a human!"''
-->--'''Masaru Daimon''', to '''Akihiro Kurata''', ''Anime/DigimonSavers''

->''"He's nothing but a bloodsucking fiend. Nothing is more evil than [=MaloMyotismon=]!"''
-->--'''Gatomon''', referring to '''[=MaloMyotismon=]''' through the Digimon Analyzer in ''Anime/DigimonAdventure02''

->''"First Vegeta, then Piccolo. And now, my best friend Krillin! You don't care, I can see that. Their lives mean absolutely nothing to you! You're not the least bit sorry! Even now, all you can think about is how to destroy me!"''
-->--'''Goku''', to '''Frieza''', ''DragonBallZ''

->''"The Prime Minister controls the Emperor from the shadows. And he is the reason why this country rots."''
-->--'''Gauri''', about '''Prime Minister Honest''', ''Manga/AkameGaKill''

->''"General Deathshead.. today he's teaching me a lesson. I've seen suffering and death, people maimed and tortured. Thought I'd seen it all, but I'd never seen true cruelty, until now."''
-->--'''Captain Blazkowicz''', ''VideoGame/WolfensteinTheNewOrder''

->'''Martin Vanger''': Of course my actions aren’t socially acceptable, but my crime is first and foremost a crime against the conventions of society. Death doesn’t come until the end of my guests’ visits here, after I’ve grown weary of them. It’s always so fascinating to see their disappointment.\\
'''Mikael Blomkvist''': Disappointment?\\
'''Martin Vanger''': Exactly. ''Disappointment''. They imagine that if they please me, they’ll live. They adapt to my rules. They start to trust me and develop a certain camaraderie with me, hoping to the very end that this camaraderie means something. The disappointment comes when it finally dawns on them that they’ve been well and truly screwed.
-->--''[[Literature/TheMillenniumTrilogy The Girl With The Dragon Tattoo]]''

->''"And this is how I win the world. This juncture of course is usually where the wheels come off. But not this time. Cutting the traitor Major Bludd's heart in half right in front of you, right here in this room, should have gotten the point across. It suited me once to appear weak and cowardly because it motivated you "people" to think. But today, is a new day. There will be no move to take over my command, there will be no mistakes. There will be NONE OF YOUR CRAP! NONE OF IT! Work with me, I will give you the world in less then 24 hours. Work against me, and I will gut you like a fish. '''Right here.'''"''
-->-- '''Cobra Commander''', ''WesternAnimation/GIJoeResolute''

->'''Leonardo''': You don't understand. [[WesternAnimation/TeenageMutantNinjaTurtles2003 The Utrom Shredder]] isn't like [[WesternAnimation/TeenageMutantNinjaTurtles1987 your Shredder]]. He's vicious.\\
'''Donatello''': Lethal.\\
'''Michelangelo''': Competent!
-->-- ''WesternAnimation/TurtlesForever''

->''"Like I said, kids are cruel, Jack. And I'm very in touch with my inner child."''
-->--'''Sundowner''', ''VideoGame/MetalGearRisingRevengeance''

->''"Are you awake? Relax, I won't kill you right away, I still have plenty of time before I reach my time limit, I'm going to enjoy this slowly. Hey, did you know? Spiders insert their venomous fangs into the prey they catch and suck out their bodily juices by dissolving them from the inside. The prey remains alive as it's killed little by little, can you imagine it?! Kuku....It gives me the chills! I don't have poisonous fangs or anything like that, so I use these! I cut my prey little by little! What wonderful scars. I will overwrite all of you. [...] Ahh...Wow, can not stand it. I'm getting all wet!"''
-->--'''Otoya Takechi''', ''Manga/AkumaNoRiddle''

->''"I hate every child and woman in this world. I want to kill every child who are smiling, they do not deserve to be happy like me. I have blood on my hands, and my soul is dead..."''
-->--'''Otoya Takechi''', ''Manga/AkumaNoRiddle''

->''"These boys are now our soldiers! They belong to me now! If you try to get them back, your whole village will burn! If you ask the Karen Rebels for help, I will cut out your tongues! If you go against me, I will feed you your intestines! Hear me, believe me, and fear me!"''
-->--'''Major Tint''', ''Film/RamboIV''

->''"Children...Ah! Killing them is actually a great favor to mankind and for each person on the face of this planet, especially when those damn "cute little fucking faces" give false hopes to the humanity. I love to kill them, they are more attractive dead. I'm not the "villain" here, I'm just ridding the world of these pests."''
-->--'''Minerva Liddell''', ''Date AST Like'' [[note]][[SpellMyNameWithAnS also known as]] ''Date A Strike''; a {{spinoff}} of ''LightNovel/DateALive''[[/note]]

->''"So you know what happened at the end of [[Literature/HarryPotterAndTheGobletOfFire Book IV]]. I do think it's shocking, but it had to be....We really are talking about someone who is incredibly power hungry. Racist, really. And what do those kinds of people do? They treat human life so lightly. I wanted to be accurate in that sense. My editor was shocked by the way the character was killed, which was very dismissive. That was entirely deliberate. That is how people die in those situations. It was just like, You're in my way and you're going to die.''
-->--[[http://content.time.com/time/world/article/0,8599,2047304,00.html J.K. Rowling]] on '''Lord Voldemort''' killing '''Cedric Diggory'''
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