Light Yagami is a genius high school student who stumbles upon a powerful Death Note. The Death Note has the power to kill anyone whose name is written in it, and after testing it, Light decides to use it to create his own perfect world, free from all criminals. Though he desires his utopian world where he is worshipped as a god, the police are eager to catch this mysterious person targeting criminals. The investigation is overwhelmed by the covert intelligence of Light, until they bring on a young detective, known only as L…

Ryuk and the other Shinigami control the Death Notes, keeping charge of them and watching humanity from afar. Shinigami are twisted entities that somewhat mimic humans in appearance, though they have much longer limbs and distorted faces. The main Shinigami we see in the anime are Ryuk and Rem, two terrifying examples of what these supernatural creatures can look like. Even in their most endearing moments, these Shinigami are ruthless and deadly—certainly not beings that anyone should take lightly! Rem especially stands out as the ugliest of Shinigami, with an elongated skeletal appearance with strange jutting bones and sewn flesh, making her far more strange in appearance than Ryuk or the other Shinigami.

Brothers Edward and Alphonse Elric want only to bring their mother back, but when these gifted young boys commit the forbidden act of human transmutation, they get far more than they bargained for. Edward loses a leg, while Alphonse loses his entire body, his soul only held in place by Ed sacrificing his right arm in order to affix Al to a nearby suit of armor. The brothers are devastated, but they are determined to get their bodies back, so they begin searching for a way to do so. After years of searching, they will begin to uncover the truth: about alchemy, about the mysterious Philosopher’s Stone and about the nature of their country…

In the final epic battle for Amestris, the military unleashes their undead army. This army causes death on both sides of the conflict, killing fighters indiscriminately. The mannequin soldiers appear as twisted, zombie-like versions of humanity, crafted from the power of liquid Philosopher’s Stone. Also called the “Immortal Legion,” these beings do not stop and are extremely difficult to kill, making them a terrifying addition to any battlefield!

Kazuto Kirigaya, known as “Kirito,” is thrilled to be part of the opening of a new VR game! He and thousands of other players log in on the first day of Sword Art Online, but they soon realize that they cannot log back out, as they are trapped in the game’s universe by the creator. In order for any of them to escape, the game’s 100 levels of dungeons must be completed first. The players try to adjust to their new lives and work together to free everyone, though not every player has the same goal in mind. With so many lives at stake, will Kirito and his friends be able to beat the game?

Kirito and his friends face many bosses and enemies during their time fighting through the levels in Sword Art Online. When they reach the boss on the 75th floor of the dungeon, the creature is more powerful than anything they have faced before. The Skull Reaper is aptly named, as it is a large skeletal centipede being with every one of its limbs operating as a sharp scythe. It is able to kill players instantly, taking out 14 fighters instantly before finally being taken down. The Skull Reaper is horrifying to face off against, and even more scary in its rapid rattling movement across a ceiling or floor.

After Eren Yeager loses everything in an attack by the monstrous Titans, he decides to train to fight against them, joining up with the Survey Corps. Along with his friends Mikasa Ackerman and Armin Arlert, Eren joins in the war between Titans and humanity. The friends strive to find a solution to the Titan problem, even as they continue to learn more of the truth hidden in this strange world…

Shingeki no Kyojin is entirely focused on the mystery and devastation of the Titans. Titans are essentially giant humans lumbering about, though they have a fascination with devouring humankind that is a single-minded focus. Though most of the Titans look just like large people, all of them have some sort of grotesque exaggerated feature that makes them all the more terrifying while they are chasing you! And without giving too much away about the discoveries in later parts of the series, Titans stem from a rather tragic beginning, making them even more disturbing. We named the Smiling Titan in particular because it is a Titan whom Eren earnestly hates, thanks to the people it has taken from him. Of course, he later finds out that he is more connected to this maniacal smiling face than he could have realized…

The Holy Grail War is on once again and Emiya Shirou finds himself involved unexpectedly! Working alongside his own servant Saber, Shirou also partners up with Rin Tohsaka in a temporary alliance against some of the other dangerous mages. Each mage and servant are fighting for their own reasons, to have their own wishes granted by the mysterious Holy Grail.

Shinji Matou is one of the other mages participating in the Fifth Holy Grail War during Unlimited Blade Works and his controlling personality extends to both his servant and those around him, like Sakura. His quest to win the war sees him losing his servant early on, yet he manages to participate through backhanded means. Without giving too much away, the pain and suffering endured from his connection with the Holy Grail are well earned, though his transfigured form does manage to draw forth some small amount of pity in viewers, even as it is one of the most disturbing things we see from the conflict. Shinji becomes a mound of billowing, bulging flesh intent on devouring everything, growing ever larger by the second.

Saya Kisaragi seems like a normal girl, but she spends her evenings slaying monsters! She protects her village with determination, until her world is turned upside down by the appearance of a mysterious dog asking questions. Saya has always promised to protect her village—but, who exactly is she meant to be protecting?

The Bunny Elder Bairns from Blood-C are among the most ruthless of the monsters, killing humans left and right to be devoured. They can transform their body into pretty much any weapon or tool they wish, and though they are easily severed, they can also multiply even after being cut in half. They seem to show no other interest in anything besides killing or torturing humans, making them even more disturbing!

Akiyuki Takehara lives in peace with his friends on Senten Island, far from the war. His complacent world is thrown into chaos when he is caught up in an explosion, after which, a strange light enters into his arm. His body transforms, merging with the creature that has entered him and pushing him forward to a great journey across the world!

Furuichi is good friends with Akiyuki and Haru, though his increased focus on fighting the Xam’d causes him to drift apart from the two. He becomes colder and more distant until his conflict with Akiyuki reaches its climax, resulting in a fight between him and his former friend. He embraces his own Xam’d form, turning into a twisted version of himself created through hatred, just so he can defeat Akiyuki. His own familiar form changes into a bulky four-legged creature with a strange crown drawing back from his forehead. Furuichi’s new form continues to grow along with his anger, until his twisted body and head tower above those of his friends. He does have some redemption right before ending his own life, as he believes it might be better for him to just disappear.

Strange parasitic creatures infiltrate humanity and Shinichi Izumi becomes a host! Luckily, the parasite fails to take over his brain, ending up in his right hand instead and residing there, permanently attached. Though Shinichi and the newly-named Migi are technically enemies, they form an interesting coexistence together to help one another survive. With plenty of other parasitic hosts looking to take the pair down, Shinichi and Migi must fight in order to stay alive another day!

Mr. Fujii is the first parasite-infested human we meet in Parasyte. We watch him unknowingly destroy his family and go on a killing spree, all while controlled by the vicious creature that has taken over his brain. He is arguably one of the most-remembered antagonists from the series, especially because his first murder happens in the opening scene. His various transformations, and his versatility in changing his body into various things(like when his entire head becomes a gaping maw of multi-layered teeth) make him a difficult person to face off against as well!

There’s a strange stench rising in Okinawa. And it’s coming from hordes of undead—fish? Kaori Sawahara and her friends are shocked to see masses of fish walking on land through the use of strange metal legs. These fish are infected with a plague that can be transferred to humans, making them into undead beings as well. Kaori must try to survive, even as everyone else struggles to save themselves from disaster!

Erika is a character who only appears in the OVA alongside her friend Aki, and the two are linked to Kaori from the beginning. Gyo is a disturbing story overall, even just in its most basic form. Erika adds to this, acting as a bully toward Aki the entire time until Erika is infected and becomes one of the first mutated humans. These diseased humans are disgustingly bloated and green in color, constricted, and strapped onto the metal legs just as the fish are. We named Erika specifically because her transformation is one of the first, and shows that all of humanity is in danger from this weird disease as it changes her to a sickening zombie-like creature, though she does retain her own mind throughout the process.

The mysterious Gauna destroyed the Earth many years ago. They continue to pursue what is left of humanity as the survivors flee through the stars. Nagate Tanikaze emerges from isolation into this world, thrust into the middle of the ensuing conflict! The Gauna begin to attack the ship Sidonia, leaving Tanikaze and his friends as the only ones who can fend them off. Tanikaze has to learn about this new world quickly so that he can fight off the Gauna and protect humanity!

Set up as the main antagonist for Sidonia no Kishi, the Gauna are the driving force behind the plot of the series. They are strange creatures consisting of a True Body and a Placenta, though they are able to take many forms. The Gauna often make their Placenta take a humanoid form, though they are much larger than any human and often appear as grotesque copies. Not only are these beings terrifying in appearance, but the knowledge of their complete destruction of humanity in the past is enough to drive anyone into fleeing from them on sight. Given their power and the ability of these weird aliens to create any disturbing form they desire, the Gauna easily top our list for the ugliest creatures in anime!

All hell has broken loose in the kingdom and it’s now up to the assassins known as the Night Raid to come and put an end to all of the chaos that’s causing panic. Tatsumi teams up with Akame and the other skilled killers to ensure that Prime Minister Honest doesn’t get his way, and that the people of the town will never suffer from poverty, strife, and ruin ever again. Tatsumi must now put his past aside and confront the challenges that await him and his team, as they fight for survival in a war full of incredibly strong foes and ugly looking creatures.

This army of horrid looking beings was just so strange to look at, simply because you couldn’t really tell what gender they were, and their deformities are just incredibly odd. This is one friend that you probably wouldn’t want to be seen around with, let alone even be its friend in the first place. Their glowing red eyes just spark terror in your very soul, and their movements are so unorthodox that it just gives you goosebumps.

The entire world is in peril as numerous natural disasters have turned the world into rubble, and everyone is out to survive at all costs. Everyone has lost their mind except one young boy named Kakugo, who has been gifted with incredible martial arts and an extremely powerful suit of armor created by his late father. Now with these skills and special armor under his belt, Kakugo feels that his responsibility is to save the world from further ruin, but his sister too has powers of her own, but not to save mankind. Her mission is to save the world by wiping out all of humanity.

Apocalypse Zero is full of bizarre looking creatures that you’d probably only see in your imagination, but now they’ve all come to life on screen. One in particular is the freakishly looking Hamuko, who’s just a giant bulky woman with enormous exposed oppai, lip augmentation gone terribly wrong, and a smile that would probably make a clown cry. Her grotesque appearance is enough to make you want to throw up your lunch, and just scratch your head in bewilderment as to how she even survived for this long.

Fullmetal Alchemist: Brotherhood is the story of Alphonse and Elric, as they search the world for the powerful philosopher’s stone, so that they can revive their mother and restore their bodies. Using their powerful alchemy to get them out of trouble, the two brothers fight courageously to put a stop to the deadly terror that’s causing havoc and to restore peace back to a world riddled with corruption. However, a nationwide conspiracy needs to be taken care of, along with the dark history of the country that’s been exposed.

Envy is one of the creations from Father, who’s a maniacal old man who’s the progenitor of homunculus and is the oldest out of all of them. Envy is a genderless being who can take on the form of whatever it pleases, and many of these forms are extremely ugly. However, Envy has two true forms. One, in particular, is his unleashed form, where he takes on the appearance of what looks like a wolf that has a body swarming with tiny little heads that scream out in terrifying ways. What’s worse is that the heads belong to the souls that were used to create Envy’s core.

In a world where humans coexist with predators called yoma, nothing is ever truly safe as these beasts love to feast on any human corpse lying around and take the form of humans to blend in with society. As a counter to these yoma creatures, an organization created half-human half-yoma warriors known as Claymores to put a stop to their chaos. Unfortunately, the Claymore are despised by humanity and aren’t trusted, that is until Clare and Raki step in to ensure that peace is restored to the kingdom and prevent any further lives from being taken. Clare devotes her life to her childhood promise and so she swears to fulfill that by any means necessary.

Yoma feast on human innards and then take on the form of a human, thus blending in with society. If that isn’t creepy enough for you, then imagine waking up to one next to you in the morning. We certainly wouldn’t want our breakfast in bed to be served by this frightful creature, and quite frankly, we wouldn’t want to be anywhere near them at all costs. Their deranged cat like eyes, grimacing smile, and deformed body structure is enough for us to press x on the window screen and end conversation immediately. The fact that they can just creep up out of nowhere with an unwelcome greeting is enough to turn anyone off, and plenty reason to place it on our list.

Saitama just had one thing on his mind and that was to become a hero for everyone to look up to. His 9 to 5 just wasn’t cutting it for him, and he needed more action in his life. So he trained like a beast until his hair follicles fell out and became the one punch man that we all know and love. Along the way he encounters an cyborg fighter named Genos who becomes his underling, as the two band together to fight the onslaught of terror that’s wreaking havoc on the city. Determined to become the best in the world, Saitama ensures that his training doesn’t go to waste and will fight just about any creature who stands in his way for the sake of humanity.

Saitama has come across a wide variety of pretty ugly creatures who are incredibly strong, but nothing tops the extreme ugly factor like Deep Sea King’s final form. This heaping pile of muscle is truly a masterpiece that transcends the ugliness spectrum, which places him in a league of his own with his big shark like teeth, googly eyes, and scaly skin. Fortunately for Saitama this wasn’t a battle for who’s the ugliest because he would’ve lost immediately, but surely enough Saitama ends our misery by laying a punch straight through his chest and bringing calm to our souls.

Ashitaka puts his life on the line to save his tribe when a ferocious demon boar attacks the village. The brave warrior makes easy work of this beast but his right arm is cursed by it during its dying moments. This curse granted him demonic powers but as a trade off, his life would slowly start to slip away. More problems arise as two major forces of nature are butting heads and humanity is desperately hanging on for dear life, so now Ashitaka’s new mission is to restore harmony between the opposing sides while battling the demon inside of him.

Boars are generally ugly to begin with, as they run around eating farm crops and making farmers lives miserable. Now you throw a demon boar into the mix and all hell breaks loose, as this boar not only eats crops but has a liking for anything that moves. Those worm like things coating its appearance only creates more fear in your heart as you watch it terrorize the village. It’s demonic red eyes are sure to make you poop yourself just a little bit, and it’s incredibly large stature is enough to intimidate just about anyone.

Parasytes embed themselves in the brains of innocent humans who they encounter, taking on this vicious looking form that you don’t want to mess with. For Izumi, he fortunately somehow managed to avoid getting controlled, as Migi only made it’s way as far as his right hand. Now with all hell breaking loose, Migi informs Izumi of the dangers that lie ahead and that his kind isn’t the type to make friends with. Now with this new incredible ability in hand Izumi must now use his intellect and tactical thinking to make sure the threat is taken care of before it’s too late.

Izumi is one stressed out dude as he wakes up with an alien in his hand, his mother being slayed by one of these things, and now he’s the one who has to kill them all. Quite the new part time job for Izumi, but he makes easy work of these ugly things who shapeshift and wield sharp blades as weapons that can turn you into fresh human sashimi. They also have a large hideous mouth that can consume your body without much effort, talk about multi-talented! Whichever way you look at it, these freaks of nature are certainly something you wouldn’t want to encounter walking home from the subway, but then again you would never know since they look like normal humans.

Gintama is just a show full of randomness right off the bat as Gintoki himself is a wandering and clueless being who seeks a job but can’t find one. Everything is in disarray as he tries to come up with a solution to his problems, but along the way encounters other crazy and wacky characters that only make you want to spit up your juice in laughter. Every episode is filled with some over the top animation that either makes you scratch your head in confusion, or laughing your head off at the references that are thrown into the mix. Whatever you fancy, Gintama is a bag full of joy that will surely bring out the best in you on a bad day.

As if bugs weren’t creepy enough already, Gintama had to throw in a nice oji-san looking face to really give it a boost in ugliness. The minute your eyes meet with this grim looking bug, your first intention is to probably look for the nearest slipper and send it to the next dimension. It’s name is very fitting as it’s sure to cause a lot of pandemonium if it were actually real and living in your home. Honey’s Anime are very fond of bees and other cute things, but this is not a bee and is not cute by any means. If your slipper doesn’t fit the bill, then try fire, and if that doesn’t suffice then try sulfuric acid to kill the bug.

Guts is not a happy man right now, so it’s best that we let him do what he needs to do at this moment. Casca is taken from him, the friend who he trusted is now his worst enemy, and there’s even more problems along the way. Guts just can’t seem to get a break in Berserk no matter how much he tries to just settle down like any sane human. Unfortunately, settling down are two words he’s very unlikely to utter from his mouth, as he’s constantly fired up and ready to destroy souls with his huge sword that can chop through anything.

Void is one truly despicable thing, whatever it is. All we know is that someone forgot to put his scalp back on after the operation, because we can clearly see his brains pulsating each time he talks. There’s just a lot of things wrong with Void in so many ways, that it’s hard to comprehend it all. His lack of skin and towering appearance is enough to turn a grown man into a weeping baby, but we’ll give Void a plus for having a colgate smile. At least he takes care of his teeth, because you can’t be the main villain of the series with a horrible grin.

A young boy with psychic powers causes an explosion in Tokyo and creates the start of World War III. For his cruel ways he’s captured and never to be heard from again. Fast forward into 2019 Neo-Tokyo where Kaneda leads a group of misfits known as The Capsules and is then thrown into the fire when Kaneda’s close friend Tetsuo is caught up in an accident with Akira, the same boy who caused all of the trouble in the first place. Now with new abilities in his body, Tetsuo now faces a bigger problem as he’s now the public enemy number one, and the government is out for his head.

There’s not much to be said about this behemoth blob of flesh and veins, because that’s pretty much what it is. Poor Tetsuo just wanted to live life as a bad boy and now he’s become a horribly disfigured creature with no mind of its own, and just wants to destroy everything. What really makes it so ugly is that for some reason, someone thought throwing on a baby face would just be spectacular, and they’re right. Tetsuo’s final form is certainly something we don’t want to see in our dreams, let alone our nightmares, we just want to cast it away somehow.