Top 10 Most Terrifying Harry Potter Fantastic Beasts

Updated on June 24, 2019
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Geek, gamer, writer, graphic artist. Yong’s favourite movies and games are those that allow him to enjoy the world from his bedroom.

My aged copy of Fantastic Beasts and Where to Find Them. A must read for any aspiring wizards!
My aged copy of Fantastic Beasts and Where to Find Them. A must read for any aspiring wizards!

Departio!!! Ahem. There’s no such spell in the Harry Potter books or movies, but you bet all wizards and witches would have some variation of it with the sort of monsters they have in their world! Here are 10 terrifying Harry Potter fantastic beasts you definitely would not want an encounter with. Before reading, note that in Newt Scamander’s famous masterpiece, the term “beasts” includes a good number of intelligent, two-legged creatures we muggles typically wouldn’t consider as feral or beastly. Why this is so is clearly explained in the preface of the textbook.

10 Terrifying Harry Potter Fantastic Beasts You Seriously Want to Avoid

1. Acromantula

The Acromantula is an eight-eyed spider capable of human speech, with legs as long as fifteen feet. Terrifying to behold, and Ron Weasley’s worst nightmare, the creature first appeared in Harry Potter and the Chamber of Secrets. When agitated or furious, the Acromantula secrets venom and makes an incessant clicking sound with its pincers. The sound alone is said to be enough to drive potential victims insane with fear.

Despite its fearsome exterior, though, the Acromantula is likely the least dangerous fantastic beast on this list. Its capability for human speech means it could occasionally be reasoned with, as with what happened in the books. That said, it is still foolish to venture near any Acromantula, or worse, to try to train one. Incidentally, these intelligent Arachnids are believed to have been created by magic for the purpose of guarding secrets. For that task, few other monsters in the wizarding world are more suitable.

Aragog, the horridic Acromantula in the Harry Potter and the Chamber of Secrets.
Aragog, the horridic Acromantula in the Harry Potter and the Chamber of Secrets.

2. Basilisk

The horrific serpentine guardian of the Chamber of Secrets, the Basilisk is bred by hatching a chicken egg underneath a toad. It is not a natural creature, in the sense it was created by dark wizards for nefarious purposes. According to legend, the first creator of the Basilisk is Herpo the Foul, a Greek dark wizard. Like Voldemort, he was a Parseltongue. Herpo’s ability to speak the language of snakes was instrumental in his control of his ghastly creation.

Other than its size, the Basilisk has extremely venomous fangs, as well as the ability to petrify or instantly kill with its gaze. This makes the creature arguably even deadlier than Medusa of Greek mythology fame. In addition, the Harry Potter books established that even an Elder Wand wielding Dumbledore could not reverse the petrification caused by a Basilisk, and that Basilisk venom is strong enough to destroy Voldemort’s horcruxes. In short, unless you are a fluent Parselmouth, don’t even think of going near a Basilisk. And even if you are one, you need to think thrice before attempting to breed or control such a fiendish beast.

Take a look at those fangs. Do you want to go near this monstrosity?
Take a look at those fangs. Do you want to go near this monstrosity?

3. Chimaera

Chimaeras in the world of Harry Potter are ferocious Greek creatures with a lion’s head, a goat’s body, and a dragon’s tail. By that description, they are close to the version found in classical Greek myths. According to Newt Scamander, there has only ever been one successful slaying of a Chimaera, with the wizard who accomplished the feat plummeting from his winged horse to his death shortly afterward. With all the other things he was dealing with back then, Harry Potter should be really glad he didn’t have to go up against a Chimaera in the original books and stories. This mythical creature might have succeeded in killing him when Voldemort, dragons, and basilisks all failed.

Classical Greek version of the Chimaera, which has more heads than Newt Scamander's version.
Classical Greek version of the Chimaera, which has more heads than Newt Scamander's version.

In the original Greek myth, Bellerophon slayed the Chimaera while riding the winged-horse Pegasus. Subsequently, he fell off Pegasus, to his death, when he tried to fly to Mount Olympus.

4. Dragons

Dragons are no strangers to fantasy fiction. What makes the ones in the world of Harry Potter exceptionally terrifying, though, is that they are completely feral. These are no Smaugs, or Saphiras, or Elliotts, who could be deceived, reasoned with, or befriended. Dragons in Harry Potter’s world are pure engines of destruction, among the most powerful fantastic beasts. They are an assured grisly death for anyone stupid enough to approach them unprepared.

Under Scamander’s classification, there are altogether ten breeds of dragons. Some are smaller and tamer, preferring diets of small animals. Others are horrific monstrosities up to a few tons heavy. Like their counterparts in other fantasy stories, most parts of dragons also have some sort of practical use for magic. For example, heart strings could be used within wands. Because of this, the Ministry of Magic heavily regulates the trading of dragon parts. Even dragon eggs are classified as Class A non-tradeable goods in the world of Harry Potter.

The dragon poor Harry had to face in Harry Potter and the Goblet of Fire.
The dragon poor Harry had to face in Harry Potter and the Goblet of Fire.

5. Erkling

The Erkling is a German, elfish creature that horrifies more with what it supposedly does, rather than what it can do. Described as around three feet tall and with a gnomish face, the Erkling uses its magical crackle to lure children away from guardians. It then spirits away these entranced young ones for the nasty purpose of making dinner.

Probably because of the Erkling's size and lack of other abilities, the Wizarding world has been quite successful in reducing the number of Erkling killings. Nonetheless, they remain a significant threat to children. Adults with children traveling in areas with known Erkling activity are thus always advised to keep a constant eye on their wards. If confronted by one, parents and guardians are encouraged to smack the Erkling on the head with a hard object. Specifically, cauldrons have been said to be most useful.

The wicked Erkling. A Harry Potter fantastic beast that sounds like fun, but is truly bad news for children.
The wicked Erkling. A Harry Potter fantastic beast that sounds like fun, but is truly bad news for children. | Source

6. Lethifold

The Lethifold does not rank among the most powerful fantastic beasts in Newt Scamander’s textbook. However, it is easily the scariest. Also known as the Living Shroud, this heinous murderer is a dark cloak around half an inch thick that moves by soundlessly gliding over the ground at night. Once it finds a victim, the Lethifold kills by smothering and suffocating. Thereafter, it quietly digests the victim whole within itself. No traces of killings are ever left behind.

With wizards and witches capable of summoning fire and other deadly elements, the Lethifold might not feel that horrific a threat. Problem though, the Lethifold favors attacking sleeping victims. There is also the unfortunate fact that the Patronus Spell is the only known spell capable of repelling a Lethifold. Just imagine this. You’re blissfully asleep and suddenly death is all over you. In your confused state, would you be able to think of a happy memory and cast the Patronus Spell? Even great wizards like Sirius Black might not be capable of the feat.

The Lethifold looks harmless. Till it's all over you.
The Lethifold looks harmless. Till it's all over you.

7. Nundu

Newt Scamander described the Nundu as “arguably the most dangerous in the world.” An East African beast in the form of a giant leopard, the Nundu’s diseased breath is capable of wiping out entire villages. According to the Magizoologist, to subdue even one requires the combined effort of hundreds of wizards.

Interestingly, after the terrifying introduction, Newt did not further elaborate on the Nundu. In fact, the entry itself is one of the shortest in Fantastic Beasts and Where To Find Them. This could be due to Newt yet to extensively tour Africa prior to publishing his book. Or maybe it’s because the Nundu is indeed that deadly. In other words, there are too few survivors with reliable information. Whichever the case, this is one fantastic beast you do not want to be anywhere near to when on African soil.

Just how dangerous is the Nundu? Perhaps even Newt Scamander himself dare not investigate.
Just how dangerous is the Nundu? Perhaps even Newt Scamander himself dare not investigate.

J.K. Rowling possibly based the Nundu on the Mngwa or Nunda. These are ferocious, leopard-like felines said to stalk Tanzania.

8. Quintaped

Like Lethifolds and Chimaeras, Quintapeds did not appear in the original Harry Potter stories. Also known as Hairy Macboons, these terrifying beasties are carnivores with five legs, thick reddish-brown hair, and a strong appetite for human flesh. Despite the best efforts of the Ministry of Magic, not a single one has ever been captured for research.

As for the origin of the Quintapeds, they are believed to be a family of wizards transfigured into this awful form by bitters enemies. For muggles and magical folk alike, the relief is that Quintapeds have ever only been found on the Scottish Isle of Drear. That isle, thankfully, has been magically made unplottable on all maps by the Ministry of Magic. There's thus no risk of you ever wandering into a Quintapeds' dinner. Unless you are actually hungry to do so.

The Quintaped looks cute, doesn't it? But it dreams of eating you.
The Quintaped looks cute, doesn't it? But it dreams of eating you.

9. Troll

Trolls in the Harry Potter world are similar to those in other fantasy stories. Huge, terribly strong, and incredibly stupid. Originally from Scandinavia, these moronic killers have since migrated all corners of Europe. Interestingly, Harry Potter trolls also possess some degree of human intellect, which differentiates them from many other fantastic beasts in Scamander’s book. Because of this, they could be taught to speak some basic human words. They could also be made, or fooled, into being guardians of locations or treasures.

Altogether, Newt Scamander listed three types of trolls, one of which is the sort that lives under bridges. In spite of their capacity for human speech and thought, trolls are still terribly dangerous creatures because of their violent and unpredictable natures. This is made a lot worse by the fact that they are not fussy eaters. A troll would happily gobble down a prey with naught a care on whether it is a cow or a man. If you're ever confronted by a troll, do not expect to have any success of reasoning with it. Your best bet for survival is to just run.

The version that appeared in The Sorcerer's Stone is a Mountain Troll.
The version that appeared in The Sorcerer's Stone is a Mountain Troll.

10. Werewolf

Don’t expect any sweet, worshipful Jacob here, or a valiant McCall. As we have seen in the movie version of Prisoner of Azkaban, werewolves in the Harry Potter world are agile supernatural killers completely undiscerning of who or what they are attacking. Making this worst is the fact that despite all the incredible feats wizards and witches are capable of, no one has discovered a way to counter a werewolf’s bite. The best a victim could do is to regularly ingest a potion made from Wolfsbane. This doesn't stop the transformations. It merely allows the victim to retain human sentience while in beastly form.

Of note, Newt Scamander describes werewolves as unique among all fantastic beasts because of their preference for human prey. A werewolf also fully remembers what he or she has done after reverting to human form. In other words, those who killed their kin or friends during rampages are doomed to remember the tragedy for the rest of their lives. Little surprise, therefore, that werewolf victims often beg to be killed rather than live with the curse. To be bitten by a werewolf is easily one of the worst fates to suffer in the Harry Potter world.

The movie version doesn't look threatening. But remember that even Snape was terrified.
The movie version doesn't look threatening. But remember that even Snape was terrified.

Questions & Answers

    © 2016 Kuan Leong Yong

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      • CYong74 profile imageAUTHOR

        Kuan Leong Yong 

        2 years ago from Singapore

        Hey Connor. You have a point. But I felt erklings were still threatening if in large numbers.

      • profile image

        Connor 

        2 years ago

        Wow. But erklings are easy to kill so they should not be on there

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