Supernatural has featured all sorts of monsters over its 300 episodes and 15 seasons. While it is currently airing its final season, we might still meet more monsters we've never seen before. Sam and Dean Winchester have tussled with their fair share of ghosts, demons, angels, werewolves, vampires, and witches.
Still, they have also fought many strange and obscure beings, some that were invented specifically for the series. We're taking a look at ten of the more obscure creatures from the TV show.
Amazons
Amazons are notable in mythology due to their relation to the Gods. For example, Wonder Woman is an Amazon. In Supernatural, they only appear in one episode during the show's seventh season. Pagan deities created the Amazons on Supernatural and eventually began mating with humans. Dean makes the mistake of sleeping with one and having a child.
Young Amazons can only become full-fledged Amazons after they kill their fathers by removing their limbs and branding them. Sam winds up having to rescue Dean, who hesitates before killing his daughter despite her intention to kill him. The Winchesters find the rest of the Amazons have fled before they can finish them off.
Musca
David Cronenberg's The Fly likely inspires these nasty creatures. They're giant monsters that appear as a mutant hybrid between a human being and a fly. Yes, you read that right. So far, they've only appeared in one episode, and they're certainly one of the more imaginative monsters we've seen on the series.
One of the grossest attributes of these flies is their ability to leave mucus-like goop everywhere. That's how the Winchesters realize when they've already passed through a particular area. To ensure they can stay undercover, the Musca often wear beekeeper outfits to try and hide their insect features.
Bisaan
In one Season 11 episode, the Winchesters have to contend with another insect-like creature called a Bisaan. These spirits come from cicadas, and they possess humans through their mouths so they can move forward and mate. Yuck. You can tell if a Bisaan possesses a human by the way they act and their appearance as the human's teeth will grow sharp, and their eyes will glow.
They also make ominous noises just like actual cicadas do. The plus side is that the Bisaan only emerges every 27 years, as that is the end of their mating cycle. However, when they do come out, they cause a lot of horrific damage.
Acheri
These nasty demons are particularly powerful because they don't need a vessel to manifest. We only see one briefly during the Season 2 finale of Supernatural. Acheri are demonic entities that appear as disfigured and malevolent little girls. They can still be summoned.
Ava summons one in the episode that kills two of her competitors when the gifted "children" are pitted against one another by Azazel. However, they do still have similar weaknesses to other demons as they cannot touch salt, and iron can get rid of them for a short period.
Vetala
These creatures are a little similar to vampires in that they feed on humans and have incredibly sharp teeth. Their bite marks even resemble those of a vampire bite. But one key thing to note about Vetala is that they hunt in pairs. Many hunters have been mistaken in thinking they're solo hunters only to get a nasty surprise when their partner lunges for them and catches them off-guard.
These monsters appear in the Season 7 episode, "Adventures in Babysitting." They often look like beautiful women at first and then morph into the real versions of themselves when their victim is least expecting it.
Pishtaco
While investigating a fancy spa after a string of murders, Sam and Dean stumble upon one of the strangest creatures they've ever encountered. "Pishtacos" or "fish tacos," as Dean mistakenly calls them, are devious creatures that enjoy eating fat.
Most of them do not kill their victims, but occasionally, a rogue Pishtaco comes along and changes that. Several Pishtacos work at the day spa in question, and they make their clients lose weight by sucking fat from their bodies with a creepy snake-long appendage. Ultimately, the Winchesters only kill one of the creatures as the other one at the spa is not actually responsible for murdering anyone.
Ōkami
The Ōkami are most similar to the werewolf; in fact, they are kind of like the Japanese folklore version of werewolves. When they are stalking their prey, they grow elongated canine-teeth to devour them.
However, one key difference between these monsters and others is they have a specific type of prey. Each one will only want to eat a certain type of human, decided by gender, hair color, or some other attribute.
Arachne
The Arachne appear in one of the better episodes of Season 6 titled "Unforgiven." As their name suggests, they are descendants of arachnids, and their abilities are very spider-like. Similar to their eight-legged pals, Arachne can concoct powerful and large webs, which can trap full-sized humans.
They also can turn humans into Arachne to breed, but they eat them too. They aren't pretty to look at, as they have white eyes, and their skin is generally not human-looking in appearance. Although, some of them can change the way they look.
Kohonta
The Kohonta is a gnarly cannibalistic monstrosity introduced during a Season 14 episode. Even Sam and Dean hadn't heard of this beast before they encountered it. The creature inhabits the woods and is rumored to have been luring in passerby to devour them.
To make matters worse, the Kohonta is cursed so that its body will start to eat itself if it doesn't continually feed. That is one of the many reasons they're so deadly. The only way to fully defeat one is by stabbing it in the heart with a silver blade of some kind. They can also be trapped by shaman magic.
Zanna
In Season 11, we met one of the rare peacekeeping creatures of the series in the form of the Zanna. These beings do not intend to harm children, which is who they are most drawn to. Instead, the Zanna simply become imaginary friends until the child outgrows them, and then they move on. They serve as a guide to the child they attach themselves too but do not attack or hurt them in any way.
Sam and a reluctant Dean actually have to help a Zanna in the episode "Just My Imagination" when it is discovered that someone is murdering the beings. Although Dean doesn't like the idea of helping monsters, Sam eventually convinces him to go along with it due to being asked by his own Zanna named Sully.