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As of the end of Season Three, major changes happen to the cast that affect the entire continuity of the show; spoilers will be unmarked. YOU HAVE BEEN WARNED.

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Mysterious Supernatural Antagonists And Other Villains

Each season includes at least one major supernatural antagonist whose identity is left a mystery for several episodes. If the monster turns out to be an established character, the entries below cover the portrayal of the monster before The Reveal.

    Season 1 - The Alpha 

The Beacon Hills Alpha
Click here to see the Alpha's human form 
"The Alpha called you out against your will. And he's going to do it again. Next time, you either kill with him, or you get killed." - Derek Hale

The Beacon Hills Alpha is the werewolf responsible for killing Laura Hale, turning Scott into a werewolf, and causing murder and mayhem throughout Season 1. Late in the season, the protagonists discover that the Alpha is actually Peter Hale.

    Season 2 - The Kanima 

The Kanima
Click here to see the Kanima's human form 
"(The Kanima) is a shapeshifter, yes. But it's - it's not right. It's like a ..."
"An abomination." - Derek and Stiles

The Kanima is a lethal reptilian shapeshifter with a prehensile tail and secretes a paralytic poison through its claws. The Kanima seeks a Master. Discovering its motives and that of its master, is one of the main arcs of Season 2. In its human form, the Kanima is Jackson Whittemore.

  • Barbie Doll Anatomy: Justified, since reptiles don't have obvious sexual characteristics like mammals. This also serves as a minor plot point, since the prime suspects are a male and a female.
  • Brainwashed and Crazy: The Kanima seeks a Master to control it. Over the course of Season 2, it is controlled by Matt Daehler then Gerard Argent, both of whom use the Kanima to murder innocents.
  • The Dragon: To whomever is its Master; it will carry out murders and other atrocities on their behalf.
  • From Nobody to Nightmare: The Kanima is a mutation of the werewolf gene. It's stated In-Universe that "Sometimes the shape you take reflects the person you are." Peter Hale states that one will become the Kanima due to the inherent feeling they lack an identity.
  • The Heavy: For the majority of the second season, both the werewolves and the hunters can agree that the Kanima is the main threat they both need to deal with.
  • Implacable Man: As the Kanima. Chris Argent shot it, Derek Hale slit its throat open, and Allison Argent planted an arrow in its skull... all for naught.
  • Love Redeems: What do you know, it's the Kanima's weakness.
  • The Paralyzer: The Kanima's most dangerous weapon is a venom that can cause instant paralysis in its victims and can be applied through a small scratch. It's strong enough to paralyze Alpha Derek for two hours, if he's unable to heal.
  • Prehensile Tail: It possesses a rather strong tail capable of lifting full grown humans of the ground and flinging them around with ease.
  • Psychic Link: Has this with its Master.
  • Reptiles Are Abhorrent: The only major reptile in the cast, and it's a villainous lizardlike creature that murders people at its master's behest.
  • Wall Crawling: Like some species of lizards, the Kanima is able to cling onto walls and ceilings.

    Season 3 A - The Darach 

The Darach
Click here to see the Darach's public identity 
"If a Druid went down the wrong path, the wise oak was sometimes said to have become a dark oak. ... Darach." - Deaton

The Darach is a dark Druid who ritually sacrifices victims to gain power and one of the main villains of Season 3A. The public identity of the Darach is Jennifer Blake.

  • Bad Ass Longcoat: She wears an outfit with one of these. The badass part comes from a memorable scene where the Darach emerges as a silhouette from a dust storm with her coattails billowing out in the wind.
  • Bald of Evil: In her true form.
  • The Beast Master: Animals instinctively sacrifice themselves for her once she sets her agenda in mind. Also one of her methods for abducting victims for her sacrifices. Uses bugs to swarm, then terrify and trap a girl, in one instance. In another, she summons moths to infiltrate a doctor's car so she can teleport herself right into the vehicle with the driver in hand for a Healer's sacrifice.
  • Big Bad: For Season 3A.
  • Curb-Stomp Battle: After gaining the power of over a dozen human sacrifices, the Darach manages to kill Kali and Neck Snap the Voltron!Twins without so much as getting touched.
  • Druid: An Evil Counterpart to the traditional versions like Deaton and Ms. Morrell. The Darach excels in Black Magic like curses and sacrificing innocents for gaining power, as opposed to focusing on any notion of the balance of nature.
  • Evil-Detecting Dog: Before she embarks on her killing spree, animals go crazy, committing suicide, birds flying through windows, a deer running down the road and into Lydia's car, fireflies breaking out of their migratory patterns.
  • Evil Makes You Ugly: She was already horrifically mutilated by her former Alpha's attack, but committing human sacrifices has only turned it Up to Eleven, resulting in her demonic form in the above image.
  • Evil vs. Evil: Her role against the Alpha Pack in Season 3A.
  • Glamour: Her most impressive power. Able to disguise her true disfigured face as the seemingly bubbly, kind and harmless Jennifer Blake.
  • Healing Factor: As a result of sacrificing Healers, she heals a gunshot to her leg. She can also heal others shown when she healed Deucalion's blindness.
  • Hive Mind: Psychically controls the entire school band to perform the Druid chanting to send a message, as well as perform the final Philosopher sacrifice, by having the pianist play so hard, a piano chord breaks off and slits her throat.
  • Human Sacrifice: Sacrifices people to gain the power to defeat the Alpha pack. Turns out animals were also sacrificing themselves for her purpose.
  • Kryptonite Factor: Mistletoe, the Druid's "favourite plant". While it's used by Druids, Scott says in "The Overlooked", mistletoe is both "a poison and a cure" meaning it can be used both by and against the Darach. He uses mistletoe to wipe away the Darach's Glamour and expose her true form.
  • Leave No Witnesses: The Darach attempts to kill both Danny and Lydia because they have uncovered too much crucial information. It is also implied that Mr. Harris was chosen as a sacrifice not only because of his military background, but because he was complicit in what was going on and might reveal something.
  • Master of Illusion: When abducting one victim, she's able to trick the young man into thinking he was bitten by his dog, then makes him hear a voice saying "Come closer".
  • Mind over Matter: In an attempt to kill of the protagonists, psychically rolling a sparking road flare towards a pool of gasoline to set them on fire.
  • Mind Rape: How she almost has the werewolves Isaac, Boyd, Ethan and Scott kill themselves by utilizing a from of wolfsbane to get into their heads.
  • Rule of Three: 3 Virgins, 3 Warriors, 3 Healers, 3 Philosophers, 3 Guardians...
  • Serial Killer: Killed her victims in ritual sacrifices.
  • Superpower Lottery: As a result of her mass sacrifices.
  • Super Strength: From sacrificing Warriors, exhibited during her face-off with the Alphas.
  • Teleporters and Transporters: How she's able to abduct a victim out of a car, as well as partially appear observing in a fiery blaze.
  • Weather Manipulation: For the Guardians' sacrifice, she uses her link to the Leylines in Beacon Hills to cause a storm and an earthquake to bury the victims alive.
  • Well-Intentioned Extremist: The Darach has a pretty good motivation for her behavior: after Kali killed their pack, leaving only her emissary severely injured, she genuinely believed that the Alpha Pack are a danger to everyone and need to be stopped at all costs. Too bad she resorts to human sacrifices to achieve that end.


    Season 3 B - The Oni 

The Oni
Scott: "What was behind the mask?"
Chris: "Darkness. Absolute darkness'''."

The Oni are a force of nature. You don't fight a tsunami. You endure it. And you hope that you are not destroyed in its path."- Katashi

The Oni are demons who appear as humanoid warriors with masks and glowing eyes. In Season 3B, they are called to Beacon Hills by the kitsune Noshiko Yukimura, to find the Nogitsune, an evil kitsune spirit, and kill him.

  • Casting a Shadow: Oni can appear and disappear by turning into black smoke. This comes with the downside of not being able to operate in daylight.
  • Glowing Eyes of Doom: Their eyes glow yellow behind the mask.
  • Implacable Man: According to Silverfinger, the Oni are not fought but instead endured, as fighting them would be pointless due to how powerful they are.
  • Logical Weakness: Daylight, due to being associated with demons and the night.
  • Malevolent Masked Men: How they appear to the characters: they wear grotesque masks (similar to Japanese Hannya) and are extremely dangerous fighters.
  • True Neutral: Noted In-Universe to be this - they have no motivations or sense of good or evil, only that of whoever's controlling them.
  • The Voiceless: They don't speak, only follow the commands of their leader.
  • Weaksauce Weakness: They're vulnerable to pure silver.
  • Weapon of Choice: Katanas.

    Season 3 B - The Nogitsune 

The Nogitsune
Click here to see who the Nogitsune possesses. 

"Chaos has come again."

The Nogitsune is a Void Kitsune, a trickster spirit that feeds on chaos and pain. Unravelling its plans is the primary arc of Season 3B. Temporary hosts of the Nogitsune are Noshiko's boyfriend Rhys in the past and Stiles in the present.

  • Animal Motifs: One of his forms is a housefly; he can also appear as a whole swarm, and uses this to possess people.
  • Bandage Mummy: In his spirit-form, he appears as a heavily bandaged burn victim wearing an old army uniform. This originates from possessing the body of Noshiko's lover after succumbing to his injuries from immolation.
  • Batman Gambit: The Nogitsune is a master of this, needless to say.
    • After Stiles is separated from him, the process manifests apparently as Stiles expelling the Dark Kitsune as a bandaged figure, so the protagonists restrain it and realize too late that it is actually their friend. Meanwhile, the real Nogitsune escapes, kidnapping Lydia.
    • He explains to Lydia that he needs her to announce his "death," when the Oni arrive to kill him - it later turns out he was planning to take control over them all along, and used Lydia partly as a distraction.
  • Big Bad: Of Season 3B. He takes possession of Stiles Stilinski.
  • Consummate Liar: He's completely capable of lying in the presence of werewolf. Justified as he is a very old trickster spirit.
  • Dirty Coward: One of his major character traits. Throughout Season 3B, the Nogitsune relies mostly on traps and mind control to get people out of his way, later using the Oni to fight his battles for him. Also, despite having Super Strength on par, if not greater than werewolves (tearing off a man's head and tossing Derek across a room), he only personally attacks targets that are weaker than him or otherwise distracted.
  • Emotion Eater: He declares that his nourishment are pain and strife.
  • Enemy Within/Enemy Without: To Stiles, possessing him periodically throughout Season 3B, utilizing control over him by engaging him in an endless game of Go inside his own mind. The second trope is played straight at the end of Season 3 "De-Void" after he's separated from Stiles; it is implied that killing him might also kill Stiles (this is later resolved by turning him back into Sealed Evil in a Can).
  • Evil Genius: As a 1,000 year old trickster spirit, it is expected.
  • Evil Twin: When he takes on Stiles's appearance and uses it to torment his friends.
  • Flies Equals Evil: He first "appears" as an unseen force controlling mass murderer Barrow via a swarm of flies hiding inside him. To make matters extra ghastly, the flies burst out of a tumor during Barrow's surgery.
  • For the Evulz: His motivation for causing all the strife, death and chaos - he sees it all as a game.
    Stiles: Why? Why are you doing this?
    Nogitsune: To win the game.
  • Hyde Plays Jekyll: He can pretty much imitate its host, which he mainly uses for kicks.
  • Jerkass: Make no mistake, the Nogitsune is absolutely repugnant. Beyond possessing Stiles and forcing him to fight his friends and loved ones, he also fakes Stiles's brain scan to make it seem like he's got the dementia his mother died from, blows up the Sheriff's office, and kills Allison, just for starters. And he enjoys it.
  • Kitsune: A particularly evil one.
  • Master of Illusion: Definitely his most impressive power. Invoked when he traps Scott, Stiles, Kira and Lydia inside a snow-covered Japanese garden in the Season 3 finale "The Divine Move".
  • My Way or the Highway: He wants his game to be played by his rules all throughout his terror spree. For his grand finale, he wants Stiles to commit seppuku with Scott acting as his second (dealing the killing blow), threatening that otherwise anyone struck by an Oni's blade (Stilinski, Parrish, Melissa, Deaton, and almost everyone at the hospital and Sheriff station) will slowly die.
  • Offscreen Teleportation: Justified as he's hinted to be able to translocate from other locations and Stilinski mentioned he saw him vanish into thin air.
  • Orifice Invasion: This is how the Nogitsune tends to possess or influence people. It took control of its first host by entering their mouth in the form of a fly. Later, while in Stiles's body, he released more flies, who possessed Isaac through his IV drip, Ethan through his nose, Aiden through his ear, and Derek through an open wound on his back, and acted as a Hate Plague for all four of them.
  • Really 700 Years Old: According to him, he's actually 1000.
  • Sadist: The thing literally feeds off chaos and pain.
  • Sealed Evil in a Can: In the 1940s, Noshiko trapped him in a jar and buried it under the roots of the Nemeton. In present day, Isaac catches him in a magical wooden box, which currently resides with the Argents' relatives in France.
  • Trap Master: Befitting a Trickster, he is an expert at setting these: sabotaging power lines at the hospital, setting up trip-wired booby-traps on the school's track field, and even timed shrapnel bombs in the sheriff's station. In every instance, causing serious injury and death to multiple people.
  • The Trickster: Of the Jerkass variety.
  • Villainous Breakdown: When he realizes he's losing the final battle against Scott and his friends, he is not pleased.
    Nogitsune: Divine move, divine move, you think you have any moves at all? You can kill the Oni but me? Me? I’m a thousand years old! You can’t kill me!

    Season 4 - The Berserkers 

The Berserkers

A particular type of demon of Norse legend, Berserkers wear bear skulls, ribcages and pelts, and are virtually unstoppable. They wear the skeletons of the bear to channel their ferocity, but at the cost of their personality. They have a master, whom they follow without question: La Loba, the Bone Woman - who is actually Kate Argent.

  • And I Must Scream: Per Chris Argent, berserkers who go through the transformation voluntarily slowly lose their humanity, until nothing of their former personality is left. Combine this with the Mind Control aspect of La Loba transforming people like Scott against their will and you get this.
  • The Berserker: Played with: They are unstoppable fighters transformed by wearing animal parts, but not enraged or out of control. They also lose their humanity after a while, and cannot drop out of the berserker state anymore. Finally, they have a master whom they obey unquestioningly, specifically a werejaguar like Kate.
  • Brainwashed and Crazy: It is implied that the berserkers didn't become ferocious fighters of their own will, but were forced into their situation by Magic and Mind Control. Invoked with Scott after Kate forcibly turns him into a berserker.
  • Co-Dragons: In Season 4, two berserkers become this to Kate Argent.
  • Elite Mooks: They are strong, ferocious and unstoppable killing machines, but, aside from Mind Control victim Scott, don't have any personality left.
  • Faceless Goons: They are huge guys in bear skeletons fighting for a bad guy: pretty creepy, definitely evil, and not exactly individualists.
  • "I Know You Are in There Somewhere" Fight: If they haven't been transformed for long, there is a small chance of snapping them out of their state. Liam tries it with Scott and succeeds.
  • Malevolent Masked Men: They wear bear skulls as masks, making them instantly recognizable as really evil people.
  • Super Toughness: Katanas faze them as little as bullets or ordinary werewolf strength. You can kill them only by supernatural means, as only a fully Evolved werewolf can go toe-to-toe with them - or by blowing them up with a landmine.

    Season 4 - The Benefactor 

The Benefactor
Click here to see the perpetrator of the Benefactor plan 

"After entering the IP address, you will be connected through a darknet portal to an untraceable bank. Once logged in, enter your account number to receive wire transfers. The IP address will deactivate with each transfer. You will be assigned a new IP address if you choose to continue down the list. Remember, visual confirmation is always required for payment."

A mysterious entity offering money to have supernaturals in Beacon Hills assassinated. In addition to the killers they are financing, they are the secondary antagonist of Season 4.

Hidden behind the mask is Meredith Walker - who blackmailed Brunski to do the legwork - using Lorraine Martin's computer by carrying out the original Benefactor plan - which was Peter Hale's.

  • Anonymous Benefactor: A villainous version. They offer cash to whoever kills off the supernatural creatures on the deadpool.
  • Disc-One Final Boss: Is the Big Bad for most of Season 4, only to be revealed and defeated in episode 9. Her assassins continue their work in the following episode but she has already given her title.
  • The Man Behind the Man: Technically speaking, the Benefactor is four people and one computer: Meredith executed the plan and blackmailed Brunski into helping her, Peter Hale gave Meredith the plan and accidentally donated the financial means, and Lorraine Martin inadvertently provided the death list and the computer, which connected the list to the money and gave Meredith the means of communicating with the assassins.
  • The Unseen: Their communication is restricted to emails, tapes and encrypted lists, so even the hired killers don't know who they are or what they look like.

    Season 4 - The Assassins 

The Mute (portrayed by Joseph Gatt)

The Mute is an assassin hired by the Benefactor to eliminate the supernatural community of Beacon Hills. This creepy fellow derives his name from the fact that he has no mouth, the area between his nose and chin being completely covered by skin. He communicates via voice computer.

  • An Axe to Grind: He wields a military tomahawk.
  • Axe Before Entering: When chasing Sean Walcott, he hacks through the bathroom door with his tomahawk. Serves as a Shout-Out to the famous scene in The Shining.
  • Bald of Evil: In addition to having no mouth, he is also bald. It looks quite impressive.
  • Character Death: Killed by Peter, who didn't like being axed. Or perhaps didn't want anyone to know that they knew each other.
  • Creepy Monotone: He communicates via voice computer, leading to a monotone voice. It becomes creepy due to what he says (see quote above).
  • Demolitions Expert: He plans to kill Sheriff Stilinski and Derek using a claymore mine, but the Sheriff figures it out before stuff can actually blow up.
  • Good Angel, Bad Angel: Pops up in Scott's Adventures in Comaland dream, representing his killer side. He's the Bad Angel to Liam's Good Angel.
  • No Mouth: For some reason, he does not have a mouth. It confuses several people.
    Sheriff Stilinski: I still don't get how this guy has no mouth. I mean - h-how does he eat?
    Derek: Peter didn't get a chance to ask. He was fighting him off with a tomahawk buried in his chest.
  • Private Military Contractors: All of his equipment is military, making it likely that he is also this in some form.
  • Professional Killer: It's his job and he seems to enjoy it.

The Orphans

Click here to see the identities of The Orphans. 

An assassin couple the Benefactor invites to take out the supernaturals on the Dead Pool list. They call themselves The Orphans because they look like innocent teenagers. They pretend to be new freshmen Garrett and Violet.

  • Character Death: They are taken out by Kate and one of her Berserkers, respectively.
  • Hidden Weapons: Violet has a thermal cut-wire that doubles as a necklace. Garrett hides a retractable blade in his lacrosse stick.
  • Impaled with Extreme Prejudice: Garrett is gored by one of the Berserkers.
  • Older Than They Look: They pretend to be high school students, but seem to be in their twenties.
  • Outlaw Couple: They seem to be very much in love; When Violet is arrested, Garrett resorts to kidnapping and blackmail to free her.
  • Professional Killer: Despite their youthful looks, they are actual assassins.
    Stiles: They are professional killers. It's their profession.
  • Psycho for Hire: Violet really enjoys cutting off heads.
  • Weapon of Choice: Violet cuts off heads with her necklace, Garrett stabs people with his retractable Blade on a Stick.

The Chemist (portrayed by James Urbaniak)

Simon, The Chemist, is yet another assassin trying to gain the bounties put on the supernatural population of Beacon Hills. He uses a modified bioweapon that's lethal to supernaturals. He's responsible for killing roughly half of Satomi Ito's Pack.

  • Applied Phlebotinum: Reishi mushrooms and anything with reishi counteract the virus.
  • Bitch in Sheep's Clothing: Pretends to be an instructor to get close to the supernatural students.
  • Boom, Headshot!: How he dies. Courtesy of Agent McCall, who shoots him to save Stiles from suffering this fate.
  • Chemistry Can Do Anything: Creates a modified version of the canine distemper virus in what appears to be his private lab.
  • Evil Genius: Bright enough to create his own bio weapon, evil enough to use it twice without qualms.
  • Faux Affably Evil: He never raises his voice, even when he's preparing to shoot someone or subjects a whole class to a potentially lethal virus infection.
  • The Stoic: He's not very emotional.
  • Wicked Cultured: Subverted: The Chemist is first seen casually sipping a nice cup of tea while behind him, a werewolf succumbs to a painful viral infection, but it later turns out he's drinking it to immunize himself against the virus.


    Season 5 - The Dread Doctors 

The Dread Doctors
Left to right: The Geneticist, The Surgeon, The Pathologist

"We are on a frequency you cannot possibly imagine."

The Dread Doctorsnote  are a trio of mysterious masked villains, who perform a series of horrific experiments on unsuspecting teenagers in Beacon Hills. They allegedly were once fully human scientists, who worshipped the supernatural and experimented on it in an attempt to enhance themselves. Electromagnetic energy enables them to not only prolong their lives significantly, but also to protect themselves against attacks and discovery. As monstrous as they have become, however, their origin and ultimate purpose are heart-breakingly human: their leader, the Surgeon, was once a man named Marcel who went to impossible lengths to bring his dead love, the monstrous Sebastien Valet, aka the Beast of Gévaudan, back from the dead.

  • Alas, Poor Villain: The Doctors are monstrous, but try not to feel at least a little sorry when the dying Marcel is coldly dismissed by Sebastien, after destroying countless lives - including his own! - to bring him back.
  • All Love Is Unrequited: The Surgeon, or his true identity Marcel, for the Beast, Sebastien Valet.
  • Arc Words: "They are coming. They are coming for all of us." Uttered in several languages, too.
  • Big Bad Duumvirate: In Season 5, alongside their erstwhile minion/protegé Theo, and their final success, the resurrected Beast of Gévaudan.
  • Chekhov's Gun: The Surgeon's swordcane, which is continuously used to kill the chimeras - and one hapless orderly - during Season 5A, turns out to be the only weapon which can kill their masterpiece, the resurrected Beast of Gévaudan, because it was forged from the pike that originally killed him.
  • Creepy Monotone: Their voices are distorted and machine-like, likely to both disorient their victims - and to hide who they really are.
  • Fake Memories: Aside from making people forget they were ever there, they implant these in their victims to explain inconvenient lost time. This happens most notably after operating on Kira while she and her parents were stuck in a traffic jam - something that the audience discovers alongside Kira *seven episodes later*.
  • Gas Mask, Longcoat: Their gear. Calling them eerie is an understatement.
  • Hoist by His Own Petard: Everything the Doctors do and have done is implied to have had one goal: resurrecting the Beast of Gévaudan, or more precisely, its human self, Sebastien Valet. They succeed, only to get killed by the Beast in a matter of minutes.
  • Humanoid Abomination: Valack describes them as "not entirely human ... anymore".
  • Laser-Guided Amnesia: The Doctors can use psychoactive sound waves to prevent people from remembering them. Valack wrote a book that would subliminally help those who read it remember if they'd ever encountered the Doctors.
  • Love Makes You Evil: Marcel became The Surgeon and created the Doctors and their works only to bring his beloved monster Sebastien back from the dead.
  • Mad Doctor: They experiment both on the willing and the unwilling, and don't seem to care overly much that the experience seems to traumatise people (and usually leads to their deaths).
  • Malevolent Masked Men: Their appearances don't make them look like very friendly people, and their actions only support that impression.
  • Mass Hypnosis: They employ specific sound waves to cause hallucinations in several people at the exact same time, and trick dozens of waiting drivers in a traffic jam into ignoring their presence, as well as walking out of a hospital in plain view carrying a victim.
  • Mind Control: They seem to almost puppeteer the chimeras, especially Tracy, who experiences this as dreaming.
  • Obviously Evil: Just take a look at those masks. If those don't convince you, their habit of secretly experimenting on teenagers and then murdering them when they "fail" should do it.
  • Off with His Head!: The Pathologist gets his head ripped off by the newly resurrected Beast. Doubles as Laser-Guided Karma - without the Dread Doctors, it wouldn't be around in the first place.
  • Outside-Context Problem: They seem like this at first. In the fifth episode, "A Novel Approach," Dr. Valack provides some insight, among other things that they have been in Beacon Hills before. And then, Deaton discovers that the extend of their experiments go far beyond teenagers and US-American small towns in "Ouroboros." Season 5B reveals that they are not quite as out of context as they seemed - their ultimate goal is the resurrection of the Beast of Gévaudan, the werewolf who turned the Argent family into hunters, and was the brother of their founder.
  • Ouroboros: They use it as their symbol and also as a sigil/door handle in places where they conduct their experiments.
  • People Jars: They have one, containing a humanoid, presumably male person suspended in green goo. Said person seems to be alive, since he wears a breathing mask, and occasionally scares hapless bystanders such as Corey. The Doctors inject the green liquid to restore their declining health, foreshadowing Theo using it to resurrect four of the formerly dead chimerasnote  to make up his own "pack." In "The Beast of Beacon Hills", Theo explains that the man is an Alpha Werewolf and Nazi soldier who fought in World War II. And the stinger for "Apotheosis" reveals that he escaped his jar.
  • Playing with Syringes: They use one that is big enough it wouldn't seem out of place in a torture chamber.
  • Post-Modern Magik: They're trying to recreate supernatural creatures using only scientific means.
  • Rule of Three: There are three of them. The credits give them names: The Surgeon, The Geneticist and The Pathologist. They also have some individual details in their costuming, but mostly function as one entity.
  • Spell My Name with a "The": According to Deucalion, they are only known by their professions.
  • Steam Punk: Definitely have this aesthetic going, both in their dress and in the bizarre science they use to achieve their goals.
  • Sword Cane: The Surgeon, who is a little more individualistic than the others, carries one of these, and uses it to kill anyone from chimeras to hapless orderlies. In the season finale it turns out the blade harbors a secret: it was forged from the pike which once killed the Beast of Gévaudan.
  • Tested on Humans: They subject unwitting teenagers to their dangerous, painful, and highly unethical experiments. And according to Valack, they've been doing it for quite a while.
  • Torture Technician: The way they treat their teenage victims is nothing but brutal and traumatising.
  • Was Once a Man: The three of them used to be human scientists studying the supernatural, until they "upgraded" themselves into their current forms. The Surgeon, their leader, is the only one whose real name we find out: He's Sebastien Valet's old friend, Marcel, who braved centuries to find a way to bring Sebastien back.
  • Waistcoat of Style: We see the Surgeon wearing one of these in "Lies of Omission."
  • Yandere: The Surgeon for Sebastien Valet.
  • You Have Outlived Your Usefulness:
    • When their first minion doesn't manage to achieve sufficient results, the Surgeon straight up runs him through with a sword. It's extra creepy because ravens start pouring out of the poor guy's chest.
    • Interestingly, this also seems to be true of the Doctors themselves - after they succeed in resurrecting the original Beast, Sebastien Valet, it slaughters both The Geneticist and The Pathologist, but gets distracted before it can do more than maul The Surgeon.

     Season 5 - The Chimeras 
The experiments of the doctors, created from unwilling test subjects being turned into supernatural creatures using science rather than the supernatural. They are sent after Scott's pack, and are always punished - by death - should they fail their mission.

Tropes applying to all the Chimeras

  • Brainwashed and Crazy: It would seem that none of them have any control over their actions.
  • Buried Alive: All experiments so far have been buried in the woods (or in one case, behind a wall), and later dug their way out of the holes. It's part of the incubation process.
  • Humanoid Abomination: They're essentially mockeries ("the cheap knockoff") of actual supernatural beings stitched together from other animal parts and converted through experimentation. The end results are bizarre horrifying monstrosities that ignore all the set rules of the supernatural.
  • Hybrid Monster: So far all Chimeras exhibit traits of werewolves, but also predominantly those of other supernatural beings.
  • Involuntary Transformation: None of them consent to the doctor's experiments.
  • One Hero, Hold the Weaksauce: As creatures created through scientific rather than supernatural means, they're immune to supernatural weaknesses that affect most other characters. They can freely cross mountain ash, for starters. They can also be turned into "proper" supernaturals, as when Scott Bites Hayden to turn her into a regular werewolf.
  • Tested on Humans: They were all once normal humans before the doctors began experimenting on them.
  • You Have Outlived Your Usefulness: The Doctors don't give any second chances to anyone who fails, considering their condition "terminal".

Belasko (portrayed by Gabriel Hogan)

A werewolf with giant, glowing talons that is sent to kill Scott and drain his Alpha powers. Later examination leads Deaton to conclude he was modified to appear as a Garuda, a large, war-like shapeshifting bird.

  • Absurdly Sharp Claws: They are absurdly sharp talons - those of a shapeshifter known as a Garuda.
  • Animorphism: He wanted to be a bird - and he became one. Only it wasn't exactly a Garuda, and it's probably permanent.
  • The Brute: He's pretty strong and REALLY tall.
  • Chekhov's Gun: His talons show up several times in Season 5b, and end up helping Malia get the upper hand on her mother, the Desert Wolf, by draining the rest of her powers.
  • Creepy Crows: They pour out of his chest when he is stabbed by the surgeon. It's a little unsettling. Word of God has it that this happened because of the experiments: apparently, he was literally turned into birds.
  • Evil Sounds Deep: Befitting his large frame, he has quite a deep voice.
  • Fan: He claims to be a "devoted" one of Scott.
  • Info Dump: In his scene with Parrish, he tells us quite a bit about Parrish (not a werewolf, but something) and himself (not an ordinary creature, not tonight) and his mission (finding Scott McCall).
  • Meaningful Name: Belasko means "little raven" - and that's exactly what he's turned into, thanks to the Doctors' experiments.
  • Power Glows: His talons glow bright blue. They make a comeback in the back half of the season, when Theo acquires them from the Desert Wolf, who took them from Deaton. And they still glow bright blue, without anyone attached to them.
  • Super Strength: In his first scene, he punches through a brick wall and picks up Parrish with one hand.
  • Vampiric Draining: He can suck the life from people, as both Parrish and Scott discover.

Tracy Stewart (portrayed by Kelsey Chow)

An acquaintance of Lydia's who suffers from night terrors. The Doctors transform her into a werewolf-kanima hybrid and send her after the people who were trying to help her deal with her parasomnia, including her own father, her psychiatrist and Natalie Martin, Lydia's mother.

  • Absurdly Sharp Claws: Those of a werewolf instead of a Kanima as part of her Chimera nature.
  • Back from the Dead: Theo revives her at the end of "Status Asthmaticus," making her part of his new pack.
  • Beware My Stinger Tail: Her tail is notable different from the first Kanima, as it is what carries the paralytic venom instead of the claws, and is sharp enough to stab Lydia in the side.
  • Blood from the Mouth: One of the doctors give her an overdose of something that kills her and a mixture of blood and mercury pours out of her mouth.
  • Body Horror: We see her turn into a Kanima and it's really not pretty. We see her back split open, spouting out a gray coloured gunk, her spine move around and a tail whip out.
  • Reptiles Are Abhorrent: As a Kanima.
  • Two-Faced: When shapeshifted, she appears half human and half lizard on her face.
  • Wall Crawl: Scales the walls of the Sheriff's station and attacks by pouncing off of the ceiling.

Donovan (portrayed by Ashton Moio)

A delinquent with a vendetta against Sheriff Stilinski, whom he holds responsible for the injury that put Donovan's father, Stilinski's former partner, in a wheelchair. Tracy attacks his prisoner transport and causes him to fall into the hands of the Doctors, who transform him into a Wendigo hybrid.

Lucas (portrayed by Eddie Ramos)

A young man who frequents the gay nightclub Sinema. At some point the Doctors experimented on him and turned him into a Girtablulu, or the Sumerian scorpion-man.

  • Badass Gay: Puts up a pretty good fight for somebody who only recently became a Chimera.
  • Black Eyes of Evil: They turn solid black when his Chimera side appears.
  • Dying as Yourself: Like Tracy, he's brought back to himself, and then murdered by the Doctors.
  • Honey Trap: Exhibits this during his moment with Mason at Sinema, with Mason clearly being smitten by him and the two kissing.
  • Out-of-Character Alert: Apparently he was quite shy before his transformation. The fact that he started acting more sexually aggressive with his boyfriend Corey was what tipped the latter off that something wasn't right.
  • Poisonous Person: Can inject highly painful (but non-lethal) scorpion venom through his stingers.
  • Scary Scorpions: His motif.
  • Straight Gay: Doesn't display any stereotypical mannerisms.
  • We Hardly Knew Ye: Dies in his first appearance.
  • Your Cheating Heart: Makes out with Mason while in a relationship with Corey. Likely part of his sudden personality change.

Zach (portrayed by Ben Stillwell)

A Chimera and a captive of the Doctors, who provides information to Liam and Hayden. He seems to have been injected with bird DNA, as he still has the remains of wings on his back.

  • Clip Its Wings: Zach had wings, due to the experiments done to him, but the Doctors cut them down to stumps.
  • Deadly Nosebleed: Silver blood leaks from his nose, indicating that his transformation has failed. Inverted, since that isn't deadly by itself, it only means that the Doctors will kill him.
  • Killed Offscreen: The last we see of him in "Ouroboros" is one of the Doctors dragging him out of his cell. During the next episode, we see his dead body lying on the Doctors' operating table, impaled upon the Surgeon's SwordCane.
  • Laughing Mad: Hayden and Liam notice him first because he giggles at Liam getting electrified by the door. He promptly apologizes, but later giggles again when Liam's second escape attempt leads to the same result, darkly assuring them that they will never get out.
  • Mr. Exposition: He provides some insight into the stages of the chimeras, and at what point the Doctors consider them failures. He then promptly exhibits one of the signs - bleeding mercury-coloured blood - before the Doctors drag him out.
  • Winged Humanoid: He has the remains of wings on his back, seemingly a result from the Doctors' experiments.

Noah Patrick(portrayed by Jordan Fisher)

A sophomore from Beacon Hills High and most recent known victim of the Dread Doctors, Noah is deposited by Theo to distract Malia from helping Scott. Chased away by Braeden, he then attacks and badly injures Sheriff Stilinski. He is later sought out by Scott, Stiles and Malia to find out why the Sheriff's injuries won't heal.

  • Blood from the Mouth: Shows the characteristic signs of the Chimera body breaking down by mercury-sated blood dripping from his mouth.
  • The Berserker: According to Theo, he is a Berserker hybrid.
  • Body Horror: His bones seem brittle and stick out of his arms and hands. One ends up in Sheriff Stilinski's body, slowly poisoning him.
  • Horror Hunger: After following a row of empty bloodbags, Malia finds him still sucking on one.
  • Killed Offscreen: The last we see of him is the Doctors coming for him with a large syringe.

    Season 5 - The Beast 

The Beast of Gévaudan
Click here to see who is the host for The Beast. Click here to see The Beast's human form. 

"The body was oil black. Solid but shapeless at the same time. Like a shadow pretending to be real." - Gerard Argent

The Dread Doctors' final creation and success is the resurrected Beast of Gévaudan, a fearsome werewolf who terrorized 18th century France until it was taken down by an ancestor of the Argents, paving the path for the family to become werewolf hunters.

This engineered version of the Beast manifests from the teenage victim who acts as its host. It turns out that the victim hosting the new Beast is Mason Hewitt.

  • Alternate Identity Amnesia: It doesn't remember anything its human side does by day.
  • Casting a Shadow: The Beast forms around its host with shadows, but appears to be solid as soon as the transformation is complete.
  • Dark Is Evil: The Beast's only known purpose is to kill whoever and whatever it crosses paths with being most definitely evil and appears as an overlarge werewolf with a pitch black body, with similar coloured shadows surrounding it which appear as the Beast transforms from its human host.
  • Evil Makes You Monstrous: According to Word of God, the Beast is an extra-large and fearsome werewolf due to Sebastien's antisocial tendencies.
  • Glowing Eyes of Doom: It displays glowing white eyes whilst transformed and when its human host Mason begins to revert to its beast form.
  • Historical-Domain Character: The Beast of Gévaudan goes back to several historical animal attacks which got so out of hand, the King of France offered a reward for the killing of the creature responsible. The culprit was variously believed to have been one or several large wolves, dog-wolf hybrids, or hyenas, and of course, werewolves.
  • Human-to-Werewolf Footprints: In "Amplification," Scott discovers the beast's large, bloody footprints, which change into human-sized sneaker prints halfway through.
  • "I Know You Are in There Somewhere" Fight: A unique variety: the pack decides to enact an old werewolf myth - turning someone back into a human by saying their true name - to separate the Beast from its host chimera. Cue Lydia screaming the name at the Beast in her banshee voice, while the others are fighting it. It works!
  • Impaled with Extreme Prejudice: How the Beast originally was killed. And also how it is killed again (after it is separated from its host).
  • Knight of Cerebus: The Beast is nigh unstoppable, its power dwarfing that of nearly any other shapeshifter seen on the show, except Parrish the Hellhound.
  • More Teeth than the Osmond Family: The Beasts mouth is nearly filled with more than enough fangs - just look at the image provided above.
  • Serial Killer: In Sebastien's previous life as the Beast, he killed anyone he decided to kill, which seems to be the Beast's only drive.
  • Superpowered Evil Side: It is the superpowered evil side to its teenage host.
  • Was Once a Man: The teenager hosting the Beast doesn't know it is the Beast (just like the Beast doesn't know it is human by day), and it is implied that once the Beast remembers its original human identity, it will overwhelm the teenage chimera's personality, erasing it from existence. In "The Maid of Gévaudan" it turns out the original Beast was Sebastien Valet, the brother of Marie-Jeanne Valet, who killed him and together with her husband Henri Argent founded the Argent family legacy of being werewolf hunters.

    Season 6a - The Ghost Riders 

The Ghost Riders
Left to Right: "The Outlaw," "The Enforcer," and "The Ranger."

Noshiko: "Imagine a night like this, Kira, with storm clouds just like these. Phantom hunters would appear, riding black horses with blood red eyes, wolves and hounds at their side, baying and snarling."

Kira: "What were they hunting?"

Noshiko: "Souls!"

The Ghost Riders are Teen Wolf's version of the Wild Hunt: undead creatures in cowboy attire, they appear during storms in times of war and chaos. People who are unfortunate enough to meet them get taken and erased from everyone's memory. They are visible only to their victims and people who turn invisible themselves, and neither bullets nor claws can stop them for long.

  • Eyeless Face: Their faces are those of emaciated corpses, with only the empty sockets left of their eyes.
  • The Fair Folk: They are appear to be ghosts rather than fae, but like their inhuman cousins, they steal people and disguise their disappearance.
  • Invisibility: They are usually unseen, but when someone who is invisible themselves touches them, they become visible to everyone.
  • Non-Malicious Monster: According to Word of God, they are not out to cause destruction or erasing people out of sheer malice.
  • Reality Warper: Their powers include erasing people from existence. Their first prominent victim is Stiles, though later it turns out they also captured Peter.
  • Revenant Zombie: They seem intelligent, though not very communicative, and are driven with purpose.
  • Un-person: What they do to their victims.
  • The Voiceless: At least so far.
  • The Wild Hunt: They are an Americanized version, appearing as cowboys with bullwhips and revolvers, and catching their victims with lassos.

    Season 6a - The Nazi Alpha 

The Nazi Alpha (portrayed by Pete Plosek)

Imprisoned by the Dread Doctors for his healing abilities, this powerful werewolf languished in a tank for 70 years. He managed to escape during the chaos following the Beast's resurrection, but has remained in Beacon Hills - hiding in plain sight, biding his time for his own purposes.

  • And Then John Was a Zombie: He gets turned into a Ghost Rider in "Riders on the Storm".
  • Bitch in Sheep's Clothing: In good Beacon Hills tradition, he masquerades as a Highschool teacher.
  • Healing Factor: According to Theo, the reason why the Doctors kept him around - his powers helped them to stay alive despite their advanced age.
  • I Am A Humanitarian: He murders people and eats their pineal glands. It's pretty gross.
  • Incurable Cough of Death: For all his superior healing power, he suffers from severe burns and damage to his breathing operatus, due to his time imprisoned by the Dread Doctors, which can only be soothed by large doses of helium.
  • Ninja Pirate Zombie Robot: He is specifically a löwenmensch - part wolf, part lion, an Alpha *and* a Nazi. Also given the Pineal Weirdness, also kind of a cannibal.
  • People Jars: He was stuck in one since World War II, which was likely neither beneficial to his mental health nor his overall disposition.
  • Red Eyes, Take Warning: He likes to supernaturally glower at his victims before brutally killing them.

    Season 6b - The Anuk-Ite 

The Anuk-Ite (portrayed by Lucy Loken(Quinn Finch); Rhenzy Feliz(Aaron); Marti Matulis (true form)
This fearsome supernatural entity escaped from the Wild Hunt when Scott's pack opened a rift to the Ghost Riders' realm catching the attention of the hellhound Halwyn. This mysterious being now lurks in the shadows and is slowly revealed to be the true cause of the rising violence in Beacon Hills.

  • Arch-Enemy: The quarry for the hellhound known as Halwyn. Halwyn is the one who originally imprisoned it in the Wild Hunt, and built Eichen House specifically so he could safely wait in hibernation in case the Anuk-Ite ever escaped.
  • Big Bad: For Season 6B.
  • Big-Bad Ensemble: Alongside Gerard Argent.
  • Bigger Bad: Its fear-inducing ability is the primary reason Gerard and Tamora's efforts are as successful as they were, and the Anuk-Ite used their Hunting pogrom for its own ends.
  • The Corruptor: Through inducing supernatural fear, turns pretty much the whole of Beacon Hills into an anti-supernatural lynch mob.
  • Deadly Gaze: Once it merges into its true form, it's said it can kill with a look. Actually, it turns people to stone, and they can survive in this state for a period of time.
  • The Dreaded: Its entire MO.
  • Evil Sounds Raspy: Anuk-Ite has an immensely sinister sounding raspy sounding voice when it speaks.
  • Final Boss: Defeating it ends the supernatural fear gripping the populace, defeating the Hunter army (though Tamora, and possibly a few others, escape and build a new group of Hunters).
  • Fusion Dance: Comes in two parts, two separate people. It's trying to merge back into one entity, which would be bad.
  • Hoist by His Own Petard: Wanted the extra power of possessing a shapeshifter. Didn't realize this included the drawbacks, like vulnerability to mountain ash, which is how it's defeated.
  • Kill and Replace: Takes over the dead bodies of people it kills, leaving a "faceless" in its place.
  • The Man Behind the Man: Not strictly intentionally, but generated the fearful environment that allowed Gerard and Tamora to turn Beacon Hills into an army of fanatical Hunters, and was skilled at using the Hunters to further its own goals.
  • Nice Job Fixing It, Villain!: Implied that the Anuk-Ite's actions lead to Beacon Hills becoming a borderline Unmasqued World, with people accepting of their supernatural protectors.
  • No Mouth: In its merged form.
  • Sealed Evil in a Can: The can in question being The Wild Hunt. The characters rightly question how to defeat something so awful trapping it with the Ghost Riders was the best option previously.
  • Spiders Are Scary: Starts off as a swarm of spiders, which is how it possesses and performs Kill and Replace on its hosts.
  • Supernatural Fear Inducer: Its raison d'etre. Low-grade across all of Beacon Hills, creating tension and paranoia that boils over into violence, and extreme near one of its "faceless," to the point Melissa and Chris, both characters not easily fazed by monsters, can barely force themselves to be near one for a few minutes.
  • Taken for Granite: How its Deadly Gaze works.

Example of: