― The Underwater Temple's High Priest on Yami Sukehiro (Black Clover)
"Completely silent, a violent creature despite looking like a geography teacher."
― Gordon Freeman Saved My Life!
" Imagine one day your home is suddenly attacked by monsters. They swagger into your village like it belongs to them. They kill your friends, they kill your family, they loot your home. Imagine that they assault your sister. They torture her, they rape her, they kill her. They desecrate the bodies of your family, do whatever they want, cackling all the while. And you see it all from where you're hidden, trying not to breathe. How could you ever let that go? So you get a weapon, you train yourself, you learn, you grow. Everything you do is to help you take revenge. You search them out, hunt them down, you fight, you attack, and you kill them and kill them and kill them and kill them. Sometimes things go well, and sometimes they don't. But each time you ask — how will I kill them next time? What's the best way to kill them? Day after day, month after month, that is all you think about. When you get a chance, of course you test every idea you have. And when you've been doing all that long enough....You start to enjoy it."
― Goblin Slayer to Guild Girl (Goblin Slayer)
"When you have enough EXP, your LOVE increases. LOVE, too, is an acronym. It stands for "Level of Violence." A way of measuring someone's capacity to hurt. The more you kill, the easier it becomes to distance yourself. The more you distance yourself, the less you will hurt. The more easily you can bring yourself to hurt others."
Users are incredibly skilled at harming others, whether intentionally or unintentional. Users have no problem using any means to get their way with others, even if it involves breaking a few bones or leaving some scars. They don't necessarily have to be good at fighting or killing to be violent, however, the intention to harm has to be there, which usually does lead to the deaths or maiming of others.
Pannacotta Fugo (JoJo's Bizarre Adventure Part V: Golden Wind/Vento Aureo)
Mou Bu (Kingdom)
Kan Ki (Kingdom)
Kyou Kai (Kingdom)
Kyou Rei (Kingdom)
Mountain Clans (Kingdom)
Zen Ou (Kingdom)
Various Characters (Kengan Ashura)
Gabimaru (Hell’s Paradise: Jigokuraku)
Aza Chōbē (Hell’s Paradise: Jigokuraku)
Kaido (One Piece)
Charlotte Linlin/Big Mom (One Piece)
Jack (One Piece)
Sanji (One Piece)
Ryoma Mikoshiba (Record of Wortenia War)
Himiko Toga (My Hero Academia)
The Boys (The Boys)
The Female (of the Species)
The Joker (DC Comics)
Teth-Adam/Black Adam (DC Comics)
Slade Wilson/Deathstroke (DC Comics)
Jonah Hex (DC Comics)
Lobo (DC Comics)
Constantine Drakon (DC Comics)
Various Characters (Sin City)
Albert "Al" Simmons/Spawn (Image Comics)
Kurr/Savage Dragon (Image Comics); before losing his memory.
Viltrumites (Image Comics)
Barracuda (Marvel: MAX Comics)
Cletus Kasady/Carnage (Marvel Comics)
Wade Wilson/Deadpool (Marvel Comics)
M-11/Human Robot (Marvel Comics)
Frank Castle/Punisher (Marvel Comics)
Victor Creed/Sabretooth (Marvel Comics)
James "Logan" Howlett/Wolverine (Marvel Comics)
Practitioners of the Hercules Method (The Strange Talent of Luther Strode)
Brock Samson (The Venture Bros.)
Edward Blake/The Comedian (Watchmen)
Walter Kovacs/Rorschach (Watchmen)
Midnighter (WildStorm/DC Comics)
Sheriff Lucas Hood (Banshee)
Michael Myers (Halloween series)
Jason Voorhees (Friday the 13th)
Eric Northman (True Blood)
Brandon Breyer/Brightburn (Brightburn)
The Penitent One (Blasphemous)
Grayson Hunt (Bulletstorm)
Dante Alighieri (Dante's Inferno)
Isaac Clarke (Dead Space)
Necromorphs (Dead Space)
Doom Slayer (DOOM)
Kratos (God of War)
Various Characters (Hotline Miami)
Jack Cayman (MadWorld)
Various Characters (Mortal Kombat)
Ryu Hayabusa (Ninja Gaiden)
Shinobu Jacob (No More Heroes)
Travis Touchdown (No More Heroes)
Alex Mercer (Prototype)
James Heller (Prototype 2)
Rick Taylor (Splatterhouse)
William J Blazkowicz (Wolfenstein)
Amon (Amon The Apocalypse of Devilman) is considered by most if not all demons in existence as the most powerful and the cruelest devil in the Devilman Universe.
In his younger days, Kenny Ackerman (Attack On Titan) was a ruthless serial killer in the capital of Wall Mitras as he slit the throats of over 100 members of the Military Police Brigade as they hunted him and his family.
When he was possessed by Amon, Akira (Devilman Crybaby) inherited both the strength and brutality of a devil.
Broly (Dragon Ball Z) is know of his extreme levels of violence, not even his father being spared from it.
Goblin Slayer (Goblin Slayer) is well-known for killing goblins in extremely brutal ways, including burning and drowning them out. He has even made goblins soil themselves from him threatening their lives.
Unreasonably short-tempered and always ready to shed blood, Jack the Drought (One Piece) has no qualms in causing unnecessary destruction while asking simple questions, even when there's no real benefit to it.
DIO Brando (JoJo's Bizarre Adventure)
During his time in his village, Gabimaru (Hell’s Paradise: Jigokuraku) was well known for his cruelty and the ruthless ways he would kill his victims.
With strength that's been called monstrous, Mou Bu (Kingdom) is one of the most brutal generals of the State of Qin.
As a Bushin, Hou Ken (Kingdom) was fully capable of demonstrating extreme levels of violence while following his path.
With rage that's hot enough to melt even rock, Kan Ki, the Beheader (Kingdom) is utterly brutal towards anyone or anything...
...and as a general of Qin, he unleashes unparalleled levels of violence while achieving a total victory on the battlefield.
The masked arsonist known only as "Pyro" has always been the most unknowable of the Team Fortress mercenaries. Until now. Today the mask comes off. Metaphorically. That's right: It's time to Meet the Pyro.
THE BLACK BADNESS
They Hit Me With a Truck - The Venture Bros. - Adult Swim