Horror Anime Series

On this webpage I will outline some coolest action/horror anime series to watch in 2021. These anime are worth watching if you haven’t watched them.

If you are reading this that means you are an anime fan, and I believe you have watched some good action anime series. But on this page, I will list down some coolest action/horror anime series to watch if you haven’t in 2021.


14. Devil Hunter Yohko.

Even though it is one of the title that got ADV films off the ground ten years ago, Devil Hunter Yohko still stands as one of the most influential players in the rise in anime’s popularity. It would have scored much higher, but the series leaves with quite a few loose ends and really seems to feel unfinished in the end.

However, it is such a solid production that it’s hard to wonder why Yohko Mano has received so much praise since her debut almost eleven years ago. Devil Hunter Yohko is the story of an ordinary girl who lives with a whore for a mother and a loon for a grandmother.

Of course, being a teenage girl, Yohko has to deal with the everyday pressures of family life, school life, and personal life. Of course, what she doesn’t yet understand is that she comes from a long line of devil hunters, all sworn to protect those from the evil that plagues the land.

The charm of this series comes from its ability to retain a dark atmosphere while also creating humorous situations at the same time. The characters are loveable, all having their interesting quirks, be it Yohko’s naiive view of the world, Chi’s constant affections for food (and the diets that follow!), or Obaa-chan’s strict view of training.

The series is one of the few that can remain truly fun to watch after the first, second, or fifteenth time, and still not seem old. Moving onto the aesthetics, Yohko’s animation is simply stunning even in today’s market. The characters move fluidly and naturally, save a few short scenes. Combine all of these elements and you have the modern classic known as Mamono Hunter Yohko.

Related: Top Amazing Sci-Fi/Fantasy Anime Series To Watch Now

13. Dragon Half.

If I had to describe Dragon Half in two words, they would be “pure insanity”. This show seriously is action, action, action from start to finish, having an Excel Saga-ish appeal throughout. The series would have ranked much higher, but the fact stands that it’s only two episodes.

On top of that, the series just hangs after the second episode, with no closure or resolution to the initial plotline. Of course, the ride is fun while it lasts, offering laughs galore through the entire two episodes.

I still can’t get the thought of Mink’s father telling his daughter that he wants “in on the fun” after walking into an awkward situation. Overall, Dragon Half is an exercise in pure hilarity, and will have even the most jaded viewer on the floor laughing so hard that tears form by the middle of the first episode.


12. X Series.

When I first saw the X feature film at a convention, I didn’t think much of it. The character designs and voice acting were phenomenal, but the story was severely lacking beyond the point of recovery. For this reason, I was skeptical about the TV series.

However, that fear very quickly turned out to have no basis in reality, when I viewed the teaser Episode 0 for the series. Here was a feature that had in my mind surpassed the movie’s excellent character designs, had smooth and graceful animation, and a story introduction so elegant that it was oh so tempting to see through to the end. See it to the end, I did, and I don’t regret it for a second.

X is one of the more “artsy” productions out there. There is a sophisticated aura about it that does not waver throughout the show. Though the voice acting, character designs, music, and animation are all excellent, the real star of this show is its story. It’s paced (I dare say) perfectly, across its 24 episodes. The story isn’t very complicated; actually it’s rather simple.

It deals with the governing of life and death by fate, and the opposing desires of those who protect human life and those who see it as a plague that must be cured. The thing that interests me to no end about this story is that the characters rarely show angst toward each other.

This “conflict between friends” idea gives the show a very unique feel. The simplicity of the story, combined with the great atmosphere set by the visuals and music, are what makes the series wonderful.


11. Read or Die.

Ever wondered what The Avengers would be like if it had been made into an anime? Wonder no more, since the answer has arrived with the coming of Read or Die. The show follows Yomiko Readman, code name: “The Paper” as she and the rest of the secret agency she works for (which is known as The Library) investigate a strange case involving mysterious marauders known as “Ijin”.

Paired with long-time partner Drake and the myserious Ms. Deep, The Paper sets out to put a stop to the horrid plans of the Ijin. Of course, what kind of anime would this be without superpowers? The clutzy Yomiko has the interesting ability to manipulate anything paper to suit her needs, be it a shield, a projectile, or even a bridge. Ms. Deep is able to pass through anything as if it were just air.

Drake… he has the um, wonderful ability to um… fire a gun well! Yeah that’s it! On the whole, RoD takes on a very fun atmosphere through its three episodes, excellently telling its story and keeping the viewer glued to his or her seat through all three episodes. On the animation side, the show it beautiful, obviously showing that no expense was spared to make the wonderful world of RoD.

Unfortunately, the end leaves the viewer wanting a lot more, and leaves a few unanswered questions, which keeps it from ranking higher. Even so, it is a wonderful series that any self-respecting fan should see at least once


10. Project A-Ko

The first fanservice comedy to hit America, Project A-Ko was a true pioneer of the 1980s style. The film’s sheer genius lay in the vast amount of different anime series that it parodies, including (but not limited to) Harmageddon, Captain Harlock, and even Macross.

On top of that, the film’s nonstop humor and massive supply of in-jokes create a film that will keep viewers glued to their seats until the credits roll. the whole concept of A-Ko: an average girl with super powers, B-Ko: a super-smart rival to A-Ko in the fact that she wants C-Ko for her very own, and C-Ko: the ultra-stereotypical blonde all trying to coexist in a classroom without killing each other until after class, is both absurd and hilarious at the same time.

The A-Ko series brings the girls through a movie and three OVAs before the start of the less-than-stellar Versus Battles series. Of course, the initial four productions are some of the best examples of what a truly classic anime is.


9. Trigun

At first, I was more than a little put of by the humor of the series (or the presentation of it, at least), but as I continued watching, I found it growing on me more and more.

Eventually the day came when I started screaming ‘Love-u and a Peace!’ at unsuspecting bystanders, and I knew that I LOVED this show. The super-super deformed look whenever someone was about to make a funny didn’t do much for me, but the humor is so good that I had no choice but to enjoy it in immense proportions.

The show had forced me to come to adore the characters so much, while slowly providing inklings of the drama to come, that when the show underwent almost complete changes in tone, I had a fully-vested interest in the well-being of these people. The serious pieces of the story are strong, but it was my connection that with the characters (Vash in particular, of course), from that wonderful comedy in the guise of pure idiocy, that made the scenes moving. The action is outrageous, the comedy ridiculous, and the drama’s laid on thick, but damn, do you have a good time of it.


8. Kidou Keisatsu Patlabor (Mobile Police Patlabor).

Another case of utter brilliance in the anime world. Fantastic writing, character and mechanical designs, as well as a wonderful soundtrack. I’ll never get tired of this series. It’s hilarious, well thought out, and generally just plain grand.

Plus, it’s one of the few anime series out there that can boast a complete lack of bishonen and bishoujo, while managing to stand on its own two legs without that eye candy, as simply an utter work of genius as well.

There are way too many eye candy series out there with not enough depth… *cough*Weiss Kreuz*cough* But this series just goes to show how good a series can be entirely sans bijin. Kudos to Masami Yuuki for creating this!

Related: Best Romantic/Comedy Anime Series To Watch In 2021

7. Gunbuster/Otaku No Video

Yeah, #7 just had to be a two-way tie. I couldn’t decide which I liked more, both are further examples of Gainax brilliance. Gunbuster is one of the best giant robot series ever made, and far too often overlooked. Otaku No Video is a brilliant analysis of what it is to be an Otaku, while also laughing at what a bunch of pathetic losers Otaku are.

I think, in a way, it’s kind of a warning as well to people to make sure they know they’re becoming Otaku as well, when they are, as becoming a complete Otaku isn’t exactly healthy… but anyway, I’ll elaborate on that some more in my forthcoming review/analysis of that which is Otaku No Video.


6. Gasaraki

A lot of emphasis is placed on the political side of the story when people mention Gasaraki – and while I do enjoy political dramas quite a bit, of which Gasaraki is a fairly good one – the reasons I like Gasaraki have more to do with the characters and the presentation/execution of the world and its plot, as well as its seamless synthesis of the traditional, mystical, and modern.

The political drama merely, in my view, sets up a background to the story and provides a (highly detailed) context in which to place the people and their extraordinary roles in the world. Of course, I inevitably must think about Yushiro Gowa, the lead character of the show whose name I have taken as my online handle. For some reason, I strongly identified with him and appreciated his role in the story, not that he was a terribly dynamic character by any means.

It was his, as well as most of the other players, interactions with the other characters and his environment that drew me into the show the most. What it lacked in pacing, spreading out the stories across more episodes than they probably needed, it made up for in involving the audience, or me at least, in the world of the show.

Gasaraki was also my introduction to Tomoko Tane, the singer/songwriter of the opening and ending songs, who has become one of my favorite Japanese musicians. (And besides, what anime list is complete without at least one giant mecha show?)


5. Saber Marionette J

The best way to describe Saber Marionette J would be “a dose of humanity from the least likely source.” The story is set on the planet of Terra II, a planet totally inhabited by men that survived a catastrophe one hundred years earlier. Since then, men have survived through cloning and have created emotionless female androids known as marionettes to serve them.

The main character, Otaru Mamiya, is an average citizen of Japaness who makes his living as a fish salesman. On one fateful day, Otaru is swept to the Japoness Pioneer Museum where he discovers Lime, a marionette who amazingly has emotions. Through Lime, Otaru meets up with Cherry and Bloodberry, two other marionettes with the same gift of emotion.

Conveniently enough, Otaru and the marionettes are the only ones that are able to save Japoness from Gartlant’s invading forces. However, the series doesn’t shine in its storyline, but rather the emotions that the marionettes display, starting off as being shunned and seen as “defective” but slowly working their way into the hearts of the people around them.

Just as their growth in the community progresses, so do the marionettes, evolving from simple girls with one-track-mind to living, breathing humans that show true emotion to the world around them, growing with the world as they live in it.

By the end of the series, they can be considered true humans even though they are androids, because they have and spread the life and hope that the world around them forgot. It’s obvious that the series touched me deeply, but the wonderful animation only helped things even more.

Saber Marionette J has almost-OVA quality animation that gives the series a more polished, fluid feel that helps to immerse viewers even further. Overall, the series touched me in a way that no other has yet to date, and will always remain one of my true favorites.


4. Boogiepop Phantom.

The horror genre of anime, when done properly (as it is often not…), has some truly bone-chilling sentiments to impart the viewer with. None, that I have seen at least, have accomplished this as well as Boogiepop Phantom.

It is one of the toughest shows to understand, due partly to the unique storytelling style, and also to the fact that much from the original novels the anime is based upon was left out, not to mention that already heady subjects the story addresses.

One of the things I like the most about it was how each episode tended to be a self-enclosed story of a single character’s tragedy – characters who were fleshed out incredibly well and given a real sense of depth you don’t often see in fictional characters.

Each story, with its individual tale was enjoyable to watch as a stand-alone, while still phasing and blending in and out of the main storyline, a fantastic creation itself. (Oh how I long for a translation of the novels or manga.) The animation itself had a fuzzy haze and color alteration cast over it for the majority of the show, which did grate on me a bit at first, but as I thought about it, I could see its value as a storytelling device.

The music, too, was another outstanding element. Though it was excessively heavy on pure ambient noise for my taste, there is some good stuff to be found when it picks up. The opening, Yuudachi, in particular caught my ear right off and started the process of endearing the show to me.

Kouji Okada’s artwork, the urban myth style, on and on and on. Boogiepop is a very potent, and sometimes mystifying, journey that is well worth any anime fan’s time, but perfectly tuned to those looking for something more esoteric.

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3. Vampire Princess Miyu.

Narumi Kakinouchi’s magnum opus is by far the most intelligent, mysterious, and horrific anime ever created. It uses subtle storytelling to convey themes of sorrow, weakness, and an unbreakable sense of duty. Never once is it afraid to ask why, but it also realizes that sometimes the answers are beyond our reach.

The powerful story is also perfectly complemented by the blockbuster cast of characters, each breaking a stereotype they could have so easily fallen into and instead constructing entirely new and fiercely realistic personalities that almost serve as the perfect metaphor for the different stages of the human life. Overall, this is one show that can never be matched in pure greatness, but instead shines as one of the closet examples of perfection I will ever see.

Not unlike X, the chief strength of the Vampire Miyu TV series is its artistic presentation. Character design is the easiest example, with Miyu having one of the most beautiful designs in all of anime. And not unlike Cowboy Bebop, this series has few episodes that would be considered plot, yet has an amazingly strong storyline.

The spectacular soundtrack by Kenji Kawai (of Ghost in the Shell fame) only adds to the great atmosphere of the show. It’s creepy, yet comforting. The life lessons presented make the show rather educational, in addition to being stylish. A definite must-see for anyone who doesn’t require a happy ending.


2. Argento Soma.

Argento Soma has been referred to by many anime buffs as “Evangelion, on a more personal level.” I know I’m due to get a lot of hate mail for this, but I personally think it’s true. Granted, the sacreligious symbolism of the famous Neo Century Evangelion is not present, it also isn’t needed as much, as the series takes on a whole new direction.

Every character in the series has his own demons to face, as in Evangelion, however, the problems are much more realistic and emotional than Evangelion’s. The story is set several years after an alien attack that crippled the world, forcing humanity to rebuild and prepare for the next possible attack.

In this time, Takuto Kaneshiro learns that his lover, Maki, is part of a secret organization known as MORGUE, who is busy restoring an alien codenamed “Frank” to hopefully unravel its secrets.

Unfortunately, there is an accident that occurs and takes the life of Maki and the professor heading the project. Takuto is wounded, but still survives. In the time he is bedridden, he has nothing to do but stew in his own self-pity and plot revenge against the one that took his dearest Maki away.

Nothing to do, that is, until a mysterious man in white offers him a chance to get what he wants… for a small exchange. Possessed by hatred, Takuto takes this opportunity and is promptly knocked out. When he comes to, he is in a strange hospital, where he is no longer Takuto Kaneshiro, but Ryu Soma: Air FOrce Lieutenant that was injured in an accident and currently assigned to the secret FUNERAL division of the American military.

To give credit to the writers, all of the characters seem human, and real right off the bat. Viewers feel for Takuto as he seeks revenge for Frank’s misdeeds against him, but is forced to watch an escapade unfold before his eyes.

Hattie has very realistic flashbacks of an incident that took her parents whenever she hears gunfire (something that has been known to happen to war veterans). These are only two of the many problems the characters express throughout the course of the series’ 25 episodes and one OVA.

Although many would say it is sacrilege that this series has as deep a psychological profile as the “great” Evangelion, but in truth, Argento Soma delivers that and much more, since the characters can all be related to more than an abandoned child, a clone, and a daughter of an insane mother. On the whole, Argento Soma takes the psychological drama and takes it to levels that dig deep into the psyche while still keeping the story coherent and believable.


1. Bubblegum Crisis (original OVA series).

The cyberpunk drama that belongs in every anime fan’s collection, Bubblegum Crisis is one of the first of many major evolutions to the anime genre.

The crisp animation and wonderfully gritty futuristic setting both come together very nicely to create a world that resembles somewhere out of Ridley Scott’s classic Blade Runner. Factor in four lovely ladies that are members of the Knight Sabers, a power-suited group of renegades against combat robots known as Boomers, a seemingly benign corporation that has an evil second face to it and mix it all together to create something that would do any sci-fi fan proud.

The series doesn’t stop there, however: Bubblegum Crisis is also the only OVA series that comes to mind that features full-length songs mid-episode. Just that fact isn’t enough to give it credit though… The big draw of this is that the songs are all excellent quality songs that all are, more or less opening/closing quality and better.

Underneath the beautiful exterior, though, is a very sturdy storyline that will keep anyone glued to their seat until the end of the last episode. The tales of the battle between GENOM and the Knight Sabers is one that is fun to hear, even after several viewings.

Through the story, the characters show tremendous growth as events start to change their lives little by little, be it a planned hit on a friend or a personal problem that needs to be solved alone.

This series showed me quite a bit about why I started watching anime in the first place. The wonderful animation, excellent acting, wonderful story, and beautiful music enraptured me, and refreshed my jaded mind that was just tired from real-world pressures of school, and life in general.

It was the rebirth of my (full-blown) interest in and appreciation for anime… and made me have the feeling that I was watching my very first tape (which, for the record, was Ranma OVA: Like Water For Ranma) all over again.

It may not be the best series in the world, but it is indeed something special to me, since it is the series that helped me to appreciate anime in an entirely different light.



We have come to the end of this article, and we hope you loved and enjoyed yourself reading this post. We will be working on updating this list, when we uncover new cool action/horror anime series.

Below is a quick rundown of theCoolest Action/Horror Anime Series to Watch In 2021.

14. Devil Hunter Yohko

13. Dragon Half

12. X Series

11. Read or Die

10. Project A-Ko

9. Trigun

8. Kidou Keisatsu Patlabor (Mobile Police Patlabor)

7. Gunbuster/Otaku No Video

6. Gasaraki

5. Saber Marionette J

4. Boogiepop Phantom

3. Vampire Princess Miyu

2. Argento Soma

1. Bubblegum Crisis (original OVA series).

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