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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. Beware: only developments of the newest season will be spoilered. (Right now, that's Season 6.)


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Scott's Friends


Danny Mahealani (portrayed by Keahu Kahuanui)

"If I come back and you're lying dead underneath a pile of weight, I'm taking the Porsche."

The goalie of the lacrosse team, and Jackson's best friend. Secretly a massive tech genius, he helps Scott's gang with their computer issues while being none the wiser about what's going on in Beacon Hills. At least that's what everyone believed, until he admitted to knowing about the supernatural to Ethan in the Season 3 Finale.

  • Chuck Cunningham Syndrome: After revealing he knew about the supernatural all along, he doesn't appear in Season 4 with no explanation of his absence in story.note 
  • Closet Geek: He's so far helped both Stiles and Jackson with rather complicated tech work, but is generally a pretty typical Lovable Jock whose main interests are athletics and playing in the school orchestra.
  • Deadpan Snarker: Danny has a tendency to make dryly snarky comments in response to Jackson's more self-obsessed moments.
  • If You Die, I Call Your Stuff: The moment that inspired his character quote has Jackson obsessively piling up weights to test his transformation.
  • Lovable Jock: He's one of the nicest guys on the lacrosse team and even Jackson is never mean to him.
  • Meaningful Name: In keeping with the werewolf theme, "Mahealani" refers to the day when the full moon begins to lose its roundness.
  • Morality Pet: He's Jackson's best friend and probably the only one not suffering from Jackson's nastier sides. In Season 3, he's also the major reason for Ethan's Heel–Face Turn.
  • Nice Guy: Almost all of the characters like him and he's consistently nice to everyone around him, except when Stiles is pestering him.
  • Playful Hacker: Danny's computer skills are apparently high level as he has a criminal record from a computer hacking incident when he was 13 years old. He says the charges were dropped, and there's no indication he's done anything malicious with them.
  • Straight Gay: When he's not, you know, playing lacrosse, his interests extend more towards hacking and other programming than, say, musical theatre.
  • Teen Genius: In contrast to Lydia's academic prowess and Stiles' detecting skills, his expertise is technology.
  • Weirdness Censor: Subverted: For three seasons, the audience is let to believe that Danny knows nothing about the supernatural, but in his final appearance he admits to having known quite a bit of what's been going on but was smart enough to stay away from it as much as possible.
  • Woman Scorned: Played for Laughs; after being paralyzed by the Kanima, Danny is asked if he's okay. After receiving confirmation that the paralysis happened to his ex as well, he smiles blissfully and says he's great.


Isaac Lahey (portrayed by Daniel Sharman)

"I came to win."

Isaac is the first member of Derek's Pack, bitten due to his horrid home life. After an initially rocky start in dealing with his powers, he becomes one of Derek's "guard dogs", until eventually joining with Scott's 'Pack' of sorts and moving in with him.

  • Abusive Parents: Isaac's father mistreated him physically and emotionally, constantly belittling him, throwing glasses at him, and even locking him in an empty freezer in the basement. When Allison and Scott examine the said freezer, they are horrified at discovering scratches left by Isaac's fingernails all over the freezer's inside.
  • Adorkable: Isaac becomes much more adorable and approachable after being under Scott's influence. He is easily one of the most endearing characters on the show. The most adorable moment for Isaac was in 2x11 when he used his powers to take some of the pain away from a dying dog. Isaac shed a few tears and was feeling happy that he could heal puppies. One of the most adorable moments on the show.
  • Berserk Button: After he starts trusting Scott, he'll attack anybody who even seems to mean Scott harm. He's also furious at the Alpha Pack, and especially the twins for causing Erica and Boyd's deaths and even tries to take revenge when he's under the Nogitsune's Hate Plague.
  • Beware the Quiet Ones: Isaac is not overly talkative and keeps to himself the vast majority of the time. But when he or anyone he holds dear is threatened, his more aggressive side will come out to play.
  • Dark and Troubled Past: His father was extremely abusive.
  • Deadpan Snarker: Not as much as Stiles but often dips in wry remarks in every conversation he has.
  • The Determinator: In "Raving" when he's supposed to give Kanima!Jackson an injection to subdue him.
  • Drunk with Power: In his first episode as a wolf, he's shaken and unsure; after this, he revels in being one, becoming cocky and snide. After a while, he gets over it.
  • Dysfunction Junction: Isaac comes from a highly abusive and dysfunctional family and home life, leading to trust issues and general problems of opening up to anyone. Befriending Scott and Melissa, falling in love with Allison, and getting accepted by Chris Argent help him past a lot of that.
  • Fake Guest Star: Isaac never made it into the opening credits, but is essentially a main character in Season 3.
  • Fully-Embraced Fiend: Initially, Isaac revels in his werewolf powers, including by scratching a line of lockers with his claws just for the hell of it. Even after he mellows out, he still has no qualms using his strength to intimidate some Lacrosse players when Scott needs something from them.
  • Heel–Face Turn: Towards the end of Season 2, Isaac goes from being a cocky, standoffish, impulsive werewolf whose intentions weren't so noble, to a much kinder, more compassionate, sensitive individual who just wants to do the right thing.
  • Heroic Willpower: Out of the three new Betas he’s the one who fully controls his transformation through using his Anchor - helped by the fact that he's the only one who seems to have asked Derek about it.
  • The Lost Lenore: Alison. He's so broken up over her death that he ends up leaving Beacon Hills behind and starting over fresh in France.
  • Living Emotional Crutch: Inverted, Isaac isn't one for someone else, he uses others as his own. Word of God says that Isaac tends to take his emotional cues from whomever he happens to be following at the time. Thus while he's a member of Derek's Pack he's snarky and arrogant. When he switches to Scott's Pack he becomes nicer and more empathetic.
  • Missing Mom: It appears Mrs. Lahey hasn't been around for a while, though we never discover what happened to her.
  • Nice Guy: Isaac seems to have been this as a human. After a short stint as a Jerkass following his transformation into a werewolf, he returns to his old personality.
  • Puppy-Dog Eyes: Several times, but most notably after Alison dies.
  • Put on a Bus: Daniel Sharman went on to become part of The CW's The Originals, so at the end of Season 3, Isaac and Chris Argent travelled to France, where Isaac has been staying since to get a fresh start after Alison's death.
  • Sixth Ranger: Isaac becomes more of this to Scott, Stiles, Allison, and Lydia over the course of Season 3A. This development already starts at the end of season two, where unlike Boyd and Erica he decided to stick around and help in the fight against Gerard and the Kanima.
  • Tender Tears: When he uses his Healing Hands ability to drain some of the pain of a puppy.
  • Took a Level in Badass: Before Isaac was bitten and became a werewolf, he was rather weak, vulnerable and didn't really defend himself, especially against his abusive father. After he was Bitten, he became much stronger and more confident.
  • Took a Level in Jerkass: Initially after his transformation into a werewolf, he revels in being stronger and faster, and plans to take revenge on people who were mean to him - such as Lydia. Eventually, after becoming more used to his new circumstances and reducing a sick puppy's pain, he takes several levels the opposite way.


Erica Reyes (portrayed by Gage Golightly)

" I have beautiful everything."

The second member of Derek's Pack, Erica was originally a girl with severe epilepsy, and a frequent patient under Melissa's care. Once she's Bitten, she becomes an extreme vamp with eyes for, well, pretty much everyone, having made advances on Derek, Scott, Stiles, and Allison.

  • Action Girl: Erica was not an action girl before she became a werewolf. After she turned, she became significantly stronger and a much more capable fighter.
  • Action Fashionista: Erica is an Action Girl but also seems to have a penchant for fashion and trendy clothing.
  • Alpha Bitch: Tries on this persona upon getting the Bite, but slowly develops a more down-to-earth personality over the course of Season 2.
  • Buxom Is Better: She has a pretty impressive bust that she enjoys to show off in some revealing outfits.
  • Cleavage Window: A lot of her outfits she wears after she received the bite usually includes tops that show off a little bit of her cleavage.
  • Convulsive Seizures: Erica was an epileptic before Derek turned her.
  • Curse That Cures: Her epilepsy disappeared after she was turned into a werewolf.
  • Dark Action Girl: For the first half of Season 2, Erica was quite villainous and had several fight scenes with the heroes during this time.
  • Dogged Nice Girl: She claims to have had "the worst crush in the world" on Stiles, but he was so focused on Lydia that he never noticed her.
  • Establishing Character Moment: In one of her first scenes, then still as a human, Erica tries to scale a wall in the gym she didn't master in class before. She's not very athletic and scared she might have a seizure, but she manages to climb a few feet completely by willpower.
  • Even the Girls Want Her: Several students immediately throw up their hands to be her lab partner when her name is called for pairings. Its a quick shot, but two of them are girls.
  • Foe Romance Subtext: Erica and Stiles flirt a bit while they are technically on opposite sides, but Stiles is at that point still head over heels for Lydia, and Erica soon develops a deeper connection to Boyd.
  • From Nobody to Nightmare: When Erica's first introduced, she's a troubled, skittish epileptic ostracized by the entire school. Then Derek gives her the bite. Who's Laughing Now?
  • Fully-Embraced Fiend: Of all of the newly-turned werewolves in the show, she is the one who most embraces her new powers, becoming the center of attention at school. Though she initially has a lower social status than even Scott, she intentionally jumps to the top of the heap, contrasting Scott's rise as an unintended (though not unappreciated) result of trying to be better at lacrosse.
  • Head-Turning Beauty: She succeeds in grabbing the attention in the lunchroom when she shows up after receiving the bite.
  • I Will Only Slow You Down: When Allison shoots her with arrows while she and Boyd are trying to run away from Beacon Hills, she screams at Boyd to keep running.
  • Killed Offscreen: As Gage Golightly left the show between Seasons 2 and 3a, Erica disappeared rather abruptly from the narrative. Allison finds her dead body in the Alpha Pack's hideout, and a later flashback reveals that she was killed by Kali, defiant and fighting to the last.
  • My Eyes Are Up Here: When she confronts a flustered Stiles, she notices how he's trying hard to look at her eyes. She teases how she thinks he wants to take a good long look at her, to which he hesitantly says no.
  • No Sense of Personal Space: It's not that she doesn't, but she knows it's best way to make others feel flustered whenever she is confronting them.
  • Rebellious Spirit: After the bite, Erica seems to enjoy causing conflict and testing everyone's boundaries.
  • The Vamp: After a childhood of feeling sickly and unattractive due to her epilepsy and the meds she had to take for it, Erica wants as much attention as she can possibly get when the bite makes her healthy and beautiful. It goes to the degree of overcompensation.
  • Took a Level in Jerkass: She revels in being callous to everyone around her after becoming a werewolf as her revenge for having received that same callousness from everyone around her.
  • Tsundere: Erica used to have a crush on Stiles when they were younger, and manhandles him a lot after becoming a werewolf, which seems to double as flirting.


Vernon Milton Boyd IV (portrayed by Sinqua Walls)

"I just want to not eat lunch alone every day. [...] I want to be like you."

The third member of Derek's Pack, Boyd was originally a loner at school. Now, he has friends in Derek, Isaac, and Erica.

  • The Determinator: Despite being spiked with arrows, Boyd didn't cease trying to take down Allison to protect Erica. Even Chris Argent was completely surprised at his willpower.
  • Embarrassing First Name: His full name is Vernon Milton Boyd IV.
  • Gentle Giant: Of the three members of Derek's pack, he's the calmest, and the only one who hasn't had a marked change of attitude after getting the bite.
  • Hidden Depths: He seems to have a much deeper understanding of werewolf lore than anyone else that's gotten the Bite so far. He explains the symbolism of Derek's triskelion tattoo to Isaac and Erica (as well as the audience).
  • I Just Want to Have Friends: The reason he agrees to join Derek's Pack.
  • Impaled with Extreme Prejudice: The Alpha Pack force Derek to kill him, by essentially mounting Boyd on Derek's claws. Dying, Boyd assures Derek that having been a werewolf only for a short time was still worth it.
  • Ordinary High-School Student: Boyd was this before he was turned into a werewolf and gained superhuman abilities.
  • Taking the Bullet: Shields Erica from Allison's arrows.
  • The Quiet One: Boyd is considerably quiet, especially in comparison to the rest of Beacon Hills. He tends to speak only when he has something worthwhile to say.
  • The Stoic: Takes calm and composed on a whole new level - as long as it isn't a full moon.
  • Token Minority: Boyd was the only African-American werewolf for quite a while.
  • Undying Loyalty: Boyd does not leave Derek's side during a fight, no matter how grim things get. In spite of having an opportunity to save himself, he comes back to protect Erica from Allison, Taking the Bullet for her without question or hesitation.

Liam's Friends


Mason Hewitt (portrayed by Khylin Rhambo)


A freshman at Beacon Hills Highschool, he's Liam's best friend. After Liam is Bitten he's as such, thrown into the supernatural world with no warning. He holds himself well, though, and more than that, when is completely let in the know, is completely beside himself with excitement. Afterwards, he becomes a close friend and ally to the Pack.

  • Adorkable: He certainly qualifies now and then. His scene where he's seen with the Pack, boisterous, beside himself with glee after he's told of all their supernatural natures.
  • Batter Up!: He and Lydia charge one of Kate's berserkers in the season 4 finale with bats.
    • In Season 6B, when Liam is locked in battle with a hellhound, Mason jumps in to help his bestie with this signature weapon.
  • Black Best Friend: For Liam.
  • Brains and Brawn: In Season 5, he's shaping up to be the brains to Liam's and possibly also Brett's brawn.
  • Dating Catwoman: Mason and Corey are quite attracted to each other, even while Corey is still a member of Theo's pack.
  • Distracted by the Sexy: Mason has a healthy appreciation for male beauty in general, and Brett's in particular.
  • Doing Research: After being confronted by a Berserker and living to tell the tale, he reads up everything he can find about the supernatural monster. It comes in handy once he's properly introduced to the supernatural world, making him a very helpful addition to Scott's Pack.
  • Eating the Eye Candy: Mason always appreciates the chance to lay his eyes on Brett's attractiveness.
  • Heterosexual Life-Partners: Mason and Liam are basically joined at the hip, and apparently have been at least since grade school.
  • Locked Out of the Loop: He's been very patient with Liam so far, but after battling a berserker with Lydia and the Sheriff, he's likely to demand some answers. In "Parasomnia", he finally gets them - and is completely thrilled.
  • Muggle Best Friend: Just an ordinary, if bright and astonishingly mature high school kid who is friends with a teenage werewolf.
  • Nice Guy: He's supportive of Liam, even though he's aware his best friend is keeping secrets. He also compassionately listens to Lydia, when she tells him about her family's recent money woes.
  • Ordinary High-School Student: He actually uses the knowledge that comes with this status for some clever detecting in Season 4, figuring out that something's wrong with Garrett and Violet, because they lied about their home addresses.
  • The Smart Guy: Displays traits of this from the beginning, but full-on grows into the role in Season 5 and starts researching several important topics for the group, figuring out among other things why Kira is unable to read Valack's coded novel and how Liam can locate the the supernaturally concealed Nemeton.
  • Straight Gay: Without his appreciation for Jerk Jock Brett's impressive physique, there would be no overt hints at his orientation in Season 4. In Season 5, he makes out with Lucas and later on, he starts dating Corey.
  • Superpowered Evil Side: The Dread Doctors turn him into the host for the resurrected Beast of Gévaudan, who goes on several killing sprees, with Mason completely unaware what's going on. Ironically, he's instrumental in unmasking himself, by being the first to figure out that the Doctors control the Beast through specific frequencies.
  • Suspiciously Similar Substitute: In Season 4, he seems to fill a certain Danny-formed role, what with being the gay best friend of color to a cocky lacrosse player. Less obviously, he is a Generation Xerox for Stiles, who is the Muggle Best Friend of the older teenagers. In Season 5, he is a lot more his own character, combining emotional intelligence and compassion with a knack for research and a keen eye for weirdness.
  • Token Minority: He becomes the sole African-America member of Scott's Pack.
  • Took a Level in Badass: Memorably charges a Berserker with a baseball bat in the Season 4 finale.


Hayden Romero (portrayed by Victoria Moroles)

"By the way, if you get me out of this. I'll forget all about sixth grade."

A new sophomore at Beacon Hills High, Hayden is frosty towards her grade school nemesis, Liam Dunbar, still resentful that she became collateral damage for one of his rages during sixth grade. She sees their reunion as a chance for Revenge - much to Liam's distress. However, things start to change when it turns out she's a victim of the Doctors' experiments, and Liam does his best to protect and help her. In constant danger, they quickly fall for one another, and Hayden comes to rely on Liam as the one person she can fully trust.After having been brought back to life by Theo, a broken Hayden struggles to move past the fact she was dead. Though conflicted over being in debt to Theo and recovering her humanity, Hayden is confident in her relationship with Liam, saying that her feelings for him are the only thing that feels right.

  • Action Girl: Grows into this towards the end of Season 5, the girl is willing to fight the Beast and later the Ghost Riders in Season 6.
  • Back from the Dead: Hayden was dead for maybe just an hour or two, but without Theo wanting a pack, she certainly would have stayed that way.
  • Battle Couple: She fearlessly fights the Ghost Riders alongside Liam in Season 6A.
  • Belligerent Sexual Tension: Naturally develops this with Liam. One of the high points is a mixed training session on the lacrosse field, where Hayden shooting soccer goals and Liam practising Lacrosse shots turns into a competition of scoring points.
  • Cool Big Sis: Has one in the form of Deputy Clark, who also seems to be her guardian. It's so far unknown what happened to their parents or why they have different last names.
  • Defecting for Love: Theo's attempts to intimidate her and his obvious distrust certainly pushed Hayden's decision to leave the chimera pack, but she says herself that Liam was the decisive factor.
  • Defrosting Ice Queen: Towards Liam, once she realizes that he is honestly trying to make amends for the "incident" in middle school - and that he's quite a nice, sweet guy besides.
  • Emergency Transformation: In the Season 5 finale, she's fatally wounded by Sebastien. Scott assuredly saves her life by giving her the Bite, and she transforms into a true Beta werewolf.
  • Healing Factor: Is hurt by Tracy, but shows no wound after she washes off the blood. It turns out she's unknowingly one of the Chimeras herself.
  • Involuntary Transformation: She's quite shocked at developing the trademark teeth, claws and Supernatural Gold Eyes of a werewolf, as she was unaware of the Dread Doctors' experiments.
  • New Transfer Student: New to BHHS, since she hasn't been in Liam's classes up until now.
  • Protectorate: Once the Dread Doctors come for her, Liam and later on the entire Pack immediately come to her defense.
  • Rescue Romance: With Liam, after she's identified as a Chimera, and he does everything he can to help and protect her, which leads to them falling for each other.
  • Revenge: She is determined to make Liam suffer for an old slight. Turns out he accidentally broke her nose in sixth grade as collateral damage in a fight he got into with another boy. Unfortunately for her, it was the day the yearbook picture was taken. Unfortunately for him, she promptly retaliated by breaking *his* nose.
  • Put on a Bus: She left Beacon Hills between Season 6A and 6B to protect her sister from any more supernatural threats.
  • Sickeningly Sweethearts: With Liam in Season 6.
  • Supernatural Gold Eyes: From to the Doctors' experiments, she turns into a werewolf-werejaguar hybrid. Later, she sports those of a true werewolf after Scott gives her the Bite to save her life.
  • Unwitting Test Subject: She's one of the Doctors' victims.


Corey (portrayed by Michael Johnston)

"OK, then. It's been fun. Especially the part where a werewolf forced his way into my brain with his claws."

Corey is a sophomore at BHHS, and the boyfriend of Lucas. Like him, he's also a Chimera. He's killed by the Doctors, but resurrected by Theo a short while later. Later on, he becomes Mason's boyfriend.

  • Adorkable: When he tests his new super-strength at the gym and wants to keep going, showing off to Mason, and giving him a big smile (see picture).
  • Back from the Dead: Theo resurrects him in "Status Asthmaticus" to form his pack.
  • Blood from the Mouth/Deadly Nosebleed: After a brief time enjoying his new powers, he suffers a bad hemorrhage from his nose and mouth, and has to be taken to the hospital.
  • Brainwashed: Like the other victims, he has been made to forget the Doctors' experiments, but he may also have had his memories specifically altered to help Theo "find" the kidnapped Liam and Hayden.
  • Break the Cutie: First he gets poisoned with painful scorpion-venom by his boyfriend Lucas, who is then killed by the Doctors. Then he is kidnapped from the hospital by the Doctors, which he is made to forget, leading to Scott forcefully invading his memories to find clues. Then he suffers the hemorrhage mentioned above, and gets murdered by one of the Doctors. Finally, he gets resurrected by Theo and is told that he and the others now "belong" to Theo. In Season 5B, when he and the chimeras break into Eichen House to get hold of the hellhound - in the ensuing struggle, Corey is almost killed, which originally makes him want to leave Beacon Hills. Mason convinces him to stay, only to turn out to be the host of the Beast, and, after Corey tries to protect him from the pack, promptly get kidnapped by the Doctors.
  • Dark Chick: He takes this role in Theo's chimera pack, due to being the one least likely to fight, but still more willing to play the pack and their friends than Hayden. However, it's only temporary.
  • Defecting for Love: His relationship with Mason proves strong enough that he leaves Theo and the other chimeras behind.
  • Distressed Dude: He basically falls from one horrible situation into the next. Mason, Scott and Kira try to help him at various points. It does not quite work, though Theo at least revives him in the end.
  • Evil Feels Good: He seems to enjoy spying on the pack, and appears to have taken on Theo's opinions whole-heartedly after initial hesitation. At least until he gets badly hurt, and Mason becomes a target to both the Doctors and Theo.
  • Exact Eavesdropping: Justified in his case, since his invisibility allows him to simply morph with his surroundings. He uses it to spy on the pack for Theo.
  • Healing Factor: Due to being one of the Dread Doctors' chimeras, he is able to heal a very painful wound caused by Lucas' scorpion stings. He's really surprised and upset by it, and researching books on miracle healings in the library when Mason meets him.
  • Impaled with Extreme Prejudice: The Surgeon kills him using his swordcane.
  • Invisibility: One of his powers. He can also make others invisible through touch.
  • Mind Rape: Aside from the Doctors tweaking his memory, an increasingly desperate Scott invades his thoughts to find the location of the Doctors' headquarters. Corey is naturally quite unwilling to help the pack afterwards.
  • Non-Action Guy: Corey seems like a rather average highschool boy before the Doctors change him into a chimera. Even after he gains Super Strength, he uses it mostly for weightlifting and escaping from the hospital.
  • Parental Neglect: According to Corey, his parents hardly noticed him before he died, and seem mostly happy he's back because they can now sue the hospital for malpractice.
  • Straight Gay: Like his boyfriend Lucas, he doesn't show any stereotypical mannerisms.
  • Super Strength: Is suddenly able to lift massive weights at the gym.
  • True Companions: In Season 6, has this dynamic with Liam and Mason.
  • Unwitting Test Subject: Like all the other Chimeras, he's unaware of being an experiment, and kept from remembering.


Other Students


Rebecca "Harley" Harlowe (portrayed by Jamila Thompson)

A friend of Scott and Stiles who goes to their high school. However, she hasn't been seen much.

  • All There in the Manual: Her real first and last name is only included in the original pilot script.
  • Chuck Cunningham Syndrome: Has not been seen or mentioned since season two's premiere "Omega."
  • Deadpan Snarker: Has a moment of snark when she see's Allison getting befriended by Lydia after only a few minutes.
  • Demoted to Extra: Is originally introduced as Scott's and Stiles' Black Best Friend but quickly waded into the background after the first few episodes.
  • Dropped After the Pilot: Played With. She does appear in the three episodes after the pilot, "Pack Mentality" and "Omega", but she barely had a role and never appeared after the latter episodes.
  • Ordinary High-School Student: One of the few characters who makes several appearances yet never encounters anything remotely supernatural, proving a normal life in Beacon Hills is theoretically possible.
  • Recurring Extra: What she ended up amounting to.
  • Vitriolic Best Buds: Originally had this relationship with Stiles if their argument in the pilot is an indicator.


Matt Daehler (portrayed by Stephen Lunsford)

"Jackson is my fury."

A charming student and photographer, who first appears in Season 2, he's also on the lacrosse team with Scott, Stiles, Jackson, Danny, and Isaac. He has a tremendous crush on Allison, and a tenuous friendship with Jackson and Danny.

However, he's also the Master of the Kanima, who controlled the beast to murder all the people who were involved in traumatizing and humiliating experience where he almost drowned.

  • Break the Cutie: Matt suffered a horrible day once upon a time, and the rest is history.
  • Death by Irony: Gets drowned by Gerard.
  • Disc-One Final Boss: Unceremoniously offed by Gerard, which lets him assert himself as primary Season 2 Big Bad and take Matt's place as master of the Kanima.
  • Dogged Nice Guy: For Allison, who only has eyes for Scott. It later turns out that he's not as nice as he seemed.
  • Evil All Along: Hiding behind the eyes of a tech-savvy photographer jock is a vicious killer hungry for the blood of anyone he feels did him wrong.
  • From Nobody to Nightmare
    Derek: This is the one controlling the Kanima? This kid?
  • He Who Fights Monsters: Yeah, being drowned by a bunch of drunken teenagers is awful. Also awful? Murdering all of those teenagers in cold blood 5 years later.
  • If I Can't Have You...: He says this almost word for word. He originally defies it, but he ultimately plays it straight.
  • Incompatible Orientation: Matt's heterosexuality and obvious crush on Allison will get in the way of Danny trying to find someone nice after his breakup. Too bad Matt isn't as nice as he appears.
  • Jerkass/Kick the Dog: Shoots Scott in the stomach right in front of Melissa, to the former's horror.
  • The Man Behind the Man: Jackson as the Kanima seeks a master. He's it.
  • Monster Sob Story: Matt drowned in a pool when he was younger, which kicked off a...
  • Obviously Evil: In Stile's opinion. He calls that Matt must be somehow behind everything from day one despite not having evidence at the time and is ultimately proven absolutely correct.
  • Roaring Rampage of Revenge: He even compares himself to Orestes, seeking vengeance against those who wronged him by standing by while he drowned.
  • Stalker with a Crush: His camera is full of candids of Allison that she didn't know about. Lampshaded by Allison herself, who shoots down his 'I couldn't help myself, you're just so beautiful' Edward Cullen act and judo-flips him.
    Matt: Photographers call them candids.
    Allison: Well, police officers call it stalking.
  • The Stoic: Whenever he wasn't overtly acting as the vengeful Master of the Kanima, his face didn't move much and practically everything he said was in a deadpan indifferent tone.
  • The Unfettered: He really has one single solitary goal: Allison Argent. Her, and getting revenge on the swim team for drowning him.
  • Walking Spoiler: Is revealed to be the Master of the Kanima towards the end of his arc on the show.


Garrett (portrayed by Mason Dye)

Garrett is a freshman at Beacon Hills High School who befriends Liam and Mason, and becomes a member of the lacrosse team.

This, however, is just a disguise: he's actually one of the many assassins trying to win the "Deadpool," the bounty put out by the Benefactor on the supernatural community of Beacon Hills.


Violet (portrayed by Samantha Logan)

Another freshman student and Garrett's girlfriend. Like him, she's also an assassin.

  • Asshole Victim: Gets killed by Kate after failing to reveal the Benefactor's identity.
  • Ax-Crazy: Violet really enjoys murder.
  • Bitch in Sheep's Clothing: A Nice Girl at first glance, she switches from partying to murder in the blink of an eye.
  • Dark Action Girl: She handles most of the fighting, while Garrett provides the backup, and is strong enough to fight beta werewolves.
  • Hoist by His Own Petard: Violet gets caught - and by extension, killed - because she's too greedy and tries to kill Scott instead of going after Beta Brett as planned.
  • Impossibly Cool Weapon: Uses a thermo-cut wire disguised as a necklace.
  • Off with His Head!: Her preferred method of killing.
  • Older Than They Look: She's just pretending to be a student to get closer to the supernatural teenagers.
  • Villains Out Shopping: She seems to be genuinely into lacrosse, cheering the team on when they are playing.
  • Walking Spoiler: Introduced as a freshman student, but is revealed in the same episode to be an assassin.


Sydney (portrayed by Claire Andrew)

Sydney is a classmate of Scott and his Pack, who first appears in Season 4.

  • Bit Character: Sydney can often be seen at games or sitting next to other characters in the classrooms, and sometimes has small storylines that move the plot forward.
  • Innocent Bystander: Sydney has been facing danger nonstop since she first appeared, be that from assassins, monstrous werewolves, or Mrs. Finch, her biology teacher.
  • Unlucky Extra: Poor Sydney simply can't catch a break: in "Weaponized" she is the first human student contracting the canine distemper virus,in "Required Reading," she turns out to have stress-related hair loss due to the pressures of Senior Year, and in "The Maid of Gévaudan," she is in the audience when the Beast attacks after a Lacrosse game.


Theo Raeken (portrayed by Cody Christian)

"I'm taking what's mine."

Theo was in fourth grade with Scott and Stiles. A new werewolf in Season 5, Theo wishes to become part of Scott's Pack. However, behind his charming, serene demeanor, it becomes more than apparent Theo is hiding more than a little inner darkness, harboring a not-so-harmless agenda regarding the Pack amongst the threat of the Dread Doctors. Later down the line, Theo's actions, lies, influence and scheming have broken the Pack apart with huge consequences and he now leads his own Pack of resurrected, demoralized Chimeras - Hayden, Corey, Tracy and Josh - to make them strong and to further his agenda which does not include good intentions for the citizens of Beacon Hills.

  • Animorphism: Is able to transform into a full wolf form. This is possible due to him being a Chimera for the Dread Doctors, a mix of werewolf and werecoyote.
  • Asshole Victim: When he and Stiles try to find out who is stealing the Chimera's bodies, he gets punched out by an unconsciously acting Parrish (who is the unwitting thief and apparently not fond of having an audience).
  • Belligerent Sexual Tension: He's trying rather unsubtly to seduce Malia, and though she's suspicious of him - and even after his true intentions are revealed - sparks indeed fly.
  • Big Bad Duumvirate: With the Dread Doctors in Season 5. He initially appears as wishing to join his Old Friend Scott McCall's Pack. In truth, he's an Ax-Crazy False Friend, who spies on the Pack for the Dread Doctors, aiming to break them apart by casting doubt and mistrust among them. It's revealed Theo wants to usurp Scott as Alpha and lead the Pack in his image. When that doesn't work, he builds his own Pack of newly resurrected Chimeras who blindly follow him due to being brainwashed.
  • Big Damn Heroes: Theo shows up just in time to help Scott and Kira against a very dangerous foe. Later in "Condition Terminal", he saves a bleeding Lydia's life using his belt as tourniquet, he saves Stiles by pulling him out of his flaming Jeep in "Strange Frequencies", and locates Liam and Hayden in "Ouroboros" bringing them both back to Scott's house. Too bad it's all a ruse so he can get in the Pack's good graces.
  • Bitch in Sheep's Clothing/A Wolf in Sheep's Clothing: He takes great efforts to present himself as a friendly Beta, who just simply wants to join a Pack and finish high school in peace while at the same time affiliating with the Dread Doctors, trying to break apart Scott and his friends in order for him to usurp leadership of the pack, going as far as turning a traumatized and raging Donovan towards murdering Stiles, then killing Scott when his plan fails
  • Chronic Backstabbing Disorder: He plays all of Scott's Pack like fiddles throughout Season 5A, only to turn around when he finds an opportunity and kills Scott. He also goes against the Dread Doctors when it suits him as seen when he resurrects several Chimeras against their wishes to form his own Pack. It's not a question of if Theo will betray someone for his own purpose, it's who it will be.
    • He does this literally with Tracy, the last member of his Pack and the most loyal to him. First he seduces her into making out with him, then, when she's let her guard down, he buries his claws into her back, killing her, taking her power.
    • Lampshaded when he turns on Deucalion, who notes "Someday, your penchant for stabbing people in the back is going to be your undoing."
  • The Corrupter: In Season 5A, he attempts to be this to the whole pack, particularly to Stiles and Malia. He encourages Stiles' attempts to keep Donovan's death a secret, and supports Malia in her decision to kill her mother in revenge. In 5B, he does the same for the Chimeras, feeding Josh's hunger for thrills and nurturing Tracy's lethal tendencies.
  • Creepy Child: When he was nine, Theo had his injured older sister fall in a river bed, then calmly stood by and watched emotionlessly as she suffered and died instead of helping her. It turns out he wanted to harvest her heart, so that he could become a biological chimera, and thus a viable test subject for the Dread Doctors.
  • Devil in Plain Sight: Stiles is convinced from the start there is something off about Theo. Turns out he was right.
  • Dragged Off to Hell: In the Season 5B finale, Kira and the skinwalkers open a hellish underground chasm beneath Theo, and the ghost of his sister emerges, dragging him down into the underground with her, to his horror, see Kick the Son of a Bitch below for details.
  • Early-Bird Cameo: Is interacting with Kira during the traffic jam that keeps her and her parents from reaching Beacon Hills, about ten minutes before he is introduced properly.
  • Entitled Bastard: And isn't he - once he's shows his true colors when he tries to usurp Scott's Pack, then when he takes command of the broken resurrected Chimeras to form his own Pack and when he's determinedly aiming to find the Beast and take its power.
    Theo (to the resurrected Chimeras): "I'm your Alpha. And all of you ... all of you belong to me."
  • Evil Is Petty: Kills Scott in a tantrum after Scott tells him, that his Pack will never be Theo's because he lacks humanity (see You Monster! below). Luckily, Scott is only briefly dead.
    • When the Surgeon pushes his buttons telling him he was a failure and a stepping stone all along, Theo loses his temper and completely severs his partnership with them, attacking them.
    • When the Beast of Gévaudan is defeated by Scott's Pack, preventing him from stealing its power, an angry Theo attempts to murder everyone present.
  • Fake Guest Star: In Season 5, he's maybe not the main antagonist, but certainly the one with the most personal and emotional consequences for the pack, and his screentime rivals that of several main characters.
  • False Friend: Takes great effort and pains to get into the Pack's good graces, while cheerfully working on sabotaging them, breaking them apart behind their backs.
  • Frenemy: With Liam in Season 6, where they commonly come to fight alongside each other, though his duplicitous actions are by no means forgotten or forgiven.
  • Inferiority Superiority Complex: Despite his intense smugness, Theo secretly despises the fact that he is "just" a Chimera - "a cheap knockoff" to a real shapeshifter as he once calls it. He obsessively searches for a way to become a real werewolf and an Alpha, and will do anything to achieve it - including kidnapping, blackmail and definitely even murder.
  • Kick the Son of a Bitch: In Season 6, the mystical prison Kira and the skinwalkers prepared for and imprisoned him in is revealed to be an endlessly repeating Nightmare Sequence - where his undead sister Tara hunts him down and rips her heart out of his chest.
  • Laser-Guided Karma: He became the Doctors' first Chimera through having his sister killed and the Dread Doctors harvesting her heart to transplat it into him. He also greeted Kira during the traffic jam, even though he was aware the Doctors had just experimented on her only moments earlier. In the season finale he is seemingly dragged underground by his sister's ghost, courtesy of the skinwalkers and Kira.
  • Manipulative Bastard: Seee several examples that follow:
    • Cajoles the not-so-stable Donovan to go after Stiles to cause Stilinski the worst possible pain. When Donovan is accidentally killed in self-defense by Stiles, he pretends to hide Stiles' secret in exchange for Stiles keeping quiet that Theo killed one of the Chimeras, Josh Diaz, seemingly to save Stiles' life and his own, so to get his hooks into Stiles.
    • Encourages Scott to research the author of the Dread Doctors novel. This leads to the Pack visiting Eichen House, and unwittingly bringing down its defenses, so the Doctors can enter. Not to mention it gives Valack the means to break out.
    • Seemingly worried, he tells Scott about Kira speaking Japanese in her sleep, implying that her Kitsune spirit might be dangerous to plant seeds of doubt in Scott about her.
    • Exposes Stiles' secret about Donovan to Scott, while also lying about how it actually went down, making Scott believe what Stiles did was on purpose and unnecessarily violent. Because of this, it ends up driving a wedge between Scott and Stiles later in the episode, possibly destroying their friendship.
    • Basically applies the same strategy he used on Donovan to Liam. He plants the idea in Liam's head the only way to save Hayden, who is slowly dying of poisoning courtesy of the Doctors, is for Scott to turn her into a werewolf. When Scott refuses, explaining that Hayden might not survive, Liam goes postal, thanks in part to the supermoon feeding his anger, almost killing Scott.
  • Mr. Fanservice: Is usually seen in the buff whenever he turns back into human from his wolf form. He is by no means shy about it. He deliberately invokes this when he works out shirtless in Malia's prescence. She sees him naked when he shows her he can fully shapeshift into a full animal form, to her amazement.
  • The Mole: Theo is this in Scott's Pack for the Dread Doctors.
  • Old Friend: Claims to be Scott's friend from fourth grade. Stiles however is suspicious.
  • Pet the Dog: In the Grand Finale he uses the pain transference ability he has as a werewolf to alleviate the agony that Gabe is going through. Gabe was his enemy who tried to kill him moments earlier but still only a high school student; Theo making his final moments painless marks the first truly selfless and altruistic thing Theo has ever done. Whilst it's a huge stretch to claim that Theo ever made a Heel–Face Turn during the show's run it does show that he's on the right path and may be capable of redemption in the future.
  • Sadistic Choice: Forces Stiles to choose between saving his father or helping Scott.
  • Secret Keeper: Inverted: He keeps secrets for Stiles and Malia, but only to manipulate them.
  • The Sociopath: Make no mistake, Theo has no conscience, no guilt nor remorse for his actions.
    • When he was eight years old, Theo decided to watch his older sister (who had constantly looked out for him, according to Theo himself) freeze to death in a ravine, even when she desperately called out to him.
    • In the present day, he manipulates Donovan and Liam into attacking and nearly killing Stiles and Scott respectively. Later he batters and kidnaps Lydia, when she comes close to figuring out his plans, and later forcibly enters her memory to uncover the Nemeton's location. He then leaves both her and the sheriff for dead just because it suits his needs.
    • Later he sells out Malia, whom it turns out he was genuinely fond of, and even admits he felt regret for doing so, because of their shared werecoyote nature, to The Desert Wolf without hesitation, all so he could acquire the Garuda talons, and leaves her to die.
    • In his Chimera Pack, Tracy was his most loyal packmate to the point she possibly had feelings for him, which he reciprocates by kissing her then kills her just to take her Kanima abilities right afterwards.
  • Team Killer: He murders Josh and Tracy just to take their powers.
  • Token Evil Teammate: Shares this role with Peter Hale, in Season 6B, when the pack undeniably needs help against The Wild Hunt, then Gerard and Monroe's linch mob-esque hunters.
  • The Trickster: He's cunning, intelligent and treacherous. Fittingly, he's part werecoyote.
  • Walking Spoiler: From 5x02 onwards, most things you can say about him are spoilers.
  • Yandere: For Scott. All throughout Season 5, he came off as very obsessed with Scott and eventually displayed dangerous and suspicious behaviour regarding him (unfortunately for Scott, Stiles was pretty much the only one who was suspicious of Theo since the beginning). Theo seemed desperate to gain Scott's trust and to be a part of his Pack. He even managed to follow Scott around at school and made sure that he had the exact same schedule as him. It turns out that Theo wanted everything that Scott had, including his Alpha status and his Pack.
  • You Monster!: Scott hands it to him in the mid-season finale when he tells Theo Scott's Pack will never follow Theo.
    Scott: "They're not like you. They never will be."
    Theo: "Because I'm a Chimera? Because I'm not a real werewolf?"
    Scott: "Because you're barely even human."


Tracy Stewart (portrayed by Kelsey Chow)

"My dad defended someone on death row once, I know how lethal injection works. One of the drugs they use paralyzes your diaphragm, makes it impossible to breathe."

Tracy is a senior who seeks out school counsellor Natalie Martin's advice because of her night terrors; however, her newest disturbing dreams of black birds and masked men turn out to be something much worse. Lydia tries to help her, enlisting first Parrish, and then the entire pack. It turns out Tracy is a Chimera, one of the Dread Doctors' experiments - with traits of both a werewolf and a kanima. In Season 5B, Tracy has been brought back to life by Theo. Her morals and previously harmless exterior lost, and still equipped with her lethal capabilities, Tracy completely pledges her loyalty to Theo, becoming his right hand. Gone from victim to victimizer, Tracy shows no emotion to anyone and everyone around her.

  • Alas, Poor Villain: Tracy seems to have turned into an unapologetic killer after her resurrection, being unerringly loyal to Theo, and cold and emotionless to everyone else, but given her tragic background, combined with her unerring trust in him and her evident distress when he betrays and murders her still tuck at the heartstrings.
  • Back from the Dead: Theo revives her in "Status Asthmaticus" with three others to form his new pack.
  • Bad Dreams: Seemingly through anxiety, Tracy dreams of birds knocking on her skylight, and masked men lurking in front of her window at night. It turns out that she has actually been experimented on by the Dread Doctors, and recalls her traumatic experiences only through nightmares.
  • Brainwashed and Crazy:
    • She seems partially under the control of the Dread Doctors. Later on she increasingly loses control, and ends up wounding and paralyzing deputies and murdering her father and her psychiatrist, before Malia manages to snap her out of it.
    • It's implied to be still the case when she revives by Theo's hand, as she, along with the others, follows Theo upon his announcing he's their Alpha by instinct. Turns out she isn't.
  • Break the Cutie: Tracy's senior year is just horrible. From bad grades and night terrors, Tracy goes on to being an unwilling participant in the Dread Doctors' experiments, to accidentally killing her own father and finally being murdered by the Doctors. Then she and a few other chimeras are revived by Theo who wants his own pack, and claims they all belong to him now.
  • Broken Bird: In Season 3A, her ordeal has left her frightened, traumatized and confused.
  • Came Back Wrong: Before dying and when she's in control of her actions, Tracy just seems like a shy, timid, innocuous teenage girl. After Theo resurrects her, she's just cold and emotionless, and shows no remorse for the actions she commits whilst under Theo's command. She disaffectedly murders the only surviving witness of the prison van savaging she committed under the Doctors' behest. She later on takes an injured Lydia hostage and simply speaks ill of Josh in a sexually dissatisfied manner after Theo kills him.
  • Dark Action Girl: When under the influence of the Doctors, she is a ruthless and competent killer. Later on, she is the best fighter in Theo's Chimera Pack.
  • Dark Chick: She becomes this for They'd pack of chimeras.
  • Dies Wide Open: When Theo murders her for her powers, she falls to the ground with open eyes. Hayden gently closes them later in a moving short moment]].
  • The Dragon: In Season 5B, she's now this to Theo, as his most loyal Chimera and the strongest fighter in his pack.
  • Dying as Yourself: Malia succeeds in snapping Tracy out of her night terror and returning her to her senses after her out-of-control killing spree - just then, the Dread Doctors arrive, and murder her.
  • Emotionless Girl: After her resurrection, Tracy remains just cold and dispassionate, hardly showing any feelings at all.
  • Kick the Dog: When Mason is identified as the host for the Beast of Gévaudan, she unemotionally tells Liam to his face Mason could be a lost cause.
  • The Lancer: In Season 5B, she comes to be this to Theo in his Chimera Pack, becoming his right hand and is often seen reporting to him.
  • Self-Made Orphan: Tracy kills her own father whilst sleepwalking and experiencing a night terror.
  • Speak Ill of the Dead: After Theo murders Josh to take his powers, Tracy simply states her opinion that Josh was "small and inexperienced".
  • Trauma-Induced Amnesia: This seems to keep her from fully remembering what happened to her.
  • Walking Spoiler: She is the first teenage Chimera victim seen on screen, then after being murdered in ep 5x03, then getting a cameo as Lydia's hallucination in 5x07, she surprisingly is resurrected by Theo in 5x10. Pretty much none of her appearances are just "average."


Josh Diaz (portrayed by Henry Zaga)

Josh is a junior at Beacon Hills High School who becomes another victim of the Dread Doctors' experiments, transforming into a Chimera. He's initially killed by Theo in "Required Reading," but is revived as a member of Theo's "Pack" in "Status Asthmaticus."

  • Addiction Displacement: After getting resurrected, Josh's new supernatural metabolism keeps alcohol and recreational drugs from working for him. Theo shows him how to use electricity instead.
  • Back from the Dead: Brought back by Theo in "Status Asthmaticus."
  • Big Brother Instinct: Towards Corey. Josh agrees to help an unconscious Kira, so that Malia will relieve a badly burnt Corey of his pain.
  • Bit Character: Josh starts out like this in his first episode, "Required Reading": He's the kid complaining to Hayden about his broken glow light at the club, and then later the boy running out to the lacrosse field asking for an inhaler when Scott has his asthma attack.
  • Energy Absorption: Can drain energy out of electric cables and stun batons.
  • Hidden Depths: During "Lie Ability," he shows both doubts of Theo's leadership and concern for Corey, who has been heavily injured.
  • Horror Hunger: In a somewhat bizarre twist, his is not for human flesh, but for electricity.
  • Impaled with Extreme Prejudice: Theo murders him for his powers in "The Beast of Beacon Hills." And it's the second time!
  • Mauve Shirt: He got some development after his resurrection, but then Theo kills him to add his power to his own.
  • More Teeth than the Osmond Family: He seems to be something similar to a wendigo, displaying the largest teeth of any creature seen on the show.
  • Psycho Electric Eel: Word of God revealed that part of the creature used to turn him into a Chimera was an eel.
  • Shock and Awe: Immunity to Electricity seems to be part of his powers, as he gnaws through various electric cables without suffering any ill effects. Also after absorbing electrical currents from a source, he can shock opponents.



Gabe (portrayed by Andrew Matarazzo)

School Staff

    Bobby Finstock 

Bobby Finstock (portrayed by Orny Adams)

"The bigger they are ... the bigger they are!"

The mentally unstable lacrosse coach and economics teacher at Beacon Hills High School. Has major issues with a member of the lacrosse team named Greenberg (who may or may not exist!).

  • Absentee Actor: During the filming of Season 5 Orny Adams took time off to concentrate on his Standup Comedy act. Apparently his character spent the time in rehab.
  • The Alcoholic: According to Natalie Martin, he's been sober for 15 years. He, however, claims he still drinks every night.
  • Attention Deficit... Ooh, Shiny!: When Scott is tackling his teammates, despite being goalkeeper, to get into sniffing range, Finstock pulls Stiles over and demands to know what the hell is wrong with his friend. Stiles lists bad grades, social awkwardness, and a misaligned jaw. Finstock is so intrigued by Scott's jaw that he lets the issue drop.
  • Bully Hunter: He will not tolerate bullies. The orderlies of Eichen House found this out the hard way.
  • Badass Teacher: Threaten or even worse hurt one of his students—or any young person in his school, for that matter—and God help you.
  • Bunny-Ears Lawyer: He's ambiguously crazy, yet he's also a competent coach and economics teacher.
  • The Bus Came Back: Returns in Season 5b for "A credible Threat" to host a charity Lacrosse game. The boys have to get him out of rehab for it.
  • Cloudcuckoolander: Talks to people that don't even exist and his motivational speeches go off on some strange tangents.
  • Embarrassing Nickname: Inverted. He wants to be called "Cupcake".
  • Imaginary Friend: Word of God states that Orny Adams was not given specifics on who to look at when yelling at Greenberg, with Jeff Davis presenting the possibility that Greenberg doesn't actually exist.
  • Jerk with a Heart of Gold: At the end of season two, he's visibly concerned by Stiles' kidnapping and upset by Jackson's apparent death.
    "I know I yell a lot. But it’s not like I hate you guys. Well, I kind of hate Greenberg, but... That’s different. It’s Greenberg."
  • Large Ham: It's best highlighted in the speeches he gives before games in the locker room.
  • Messy Hair: There is not a strand of Coach Finstock's hair that sticks in the same directions as any other; he's like an anime character, in keeping with his character as eccentric hard-ass who probably doesn't own a comb.
  • Only Sane Man: In Season 6B, where most of the adults of Beacon Hills seem to be falling prey to the Anuk-ite's influence to the point that the stern but fair Mrs. Finch was willing to let Nolan and Gabe brutally beat Liam to a bloody pulp, Finstock immediately jumped in the middle and threw the two into the hall before checking on Liam.
  • Papa Wolf: Despite his instabilities, he's not a bad person and he genuinely cares about his students and team. And he will not tolerate anyone bullying another person.
  • Rousing Speech: Finstock gives one of these to his lacrosse team before the championship game. Turns out it's the exact same speech used by the American president in Independence Day. This little fact doesn't escape the notice of Stiles and Ms. McCall.
  • Sadist Teacher: And coach, though for comedic effect.
    Finstock: *laughing* I don't know why, McCall, but your pain gives me a special kind of joy.

    Adrian Harris 

Adrian Harris (portrayed by Adam Fristoe)

"Try putting the highlighter down between paragraphs. It's chemistry, not a coloring book."

The snide chemistry teacher at Beacon Hills High School with a particular hatred for Stiles.

  • The Alcoholic: Formerly, and it was during a drunken night at the bar that he told Kate Argent what type of chemicals would most efficiently burn down a large, wooden structure. This, of course, lead to the arson-murder of the Hale family.
  • Asshole Victim: Gets sacrificed by the Darach at the end of 3x04 "Unleashed".
  • Jerkass: On top of his usual behavior, Harris also knew about the true culprit behind the Hale family murders, but never came forward because he didn't want to be charged as an accomplice. He was also working with the Darach, only to be betrayed and murdered.
  • Sadist Teacher: Consistently singles out and verbally abuses Stiles in class to levels that would (and should) get him fired.
  • The Scapegoat: Whenever something bad happens, he is usually the first person to be suspected by both the audience and the characters.
  • Stoic Spectacles: The glasses only add to the strangely intense chemistry teacher schtick. If this show wasn't live-action, you could expect Scary Shiny Glasses to be invoked for emphasis.

    Jennifer Blake 

Jennifer Blake aka Julia Baccari (portrayed by Haley Webb)

"You call them sacrifices, but you're not understanding the word. It's derived from the Latin sacrificium, an offering to a deity, a sacred rite. A necessary evil."

The new English teacher appearing in Season 3A, she is soon embroiled in Beacon Hills' supernatural community after nearly being killed by Cora and Boyd, and saved by Derek. She starts a relationship with Derek and all seems well, except...

...she is later revealed to be the Darach, a dark, corrupted Druid Emissary who has been committing mass sacrifices across Beacon Hills, trying to gain massive power to destroy Deucalion's Alpha Pack.

  • Adorkable: She initially appears as a kind, bubbly, friendly and very enthusiastic teacher, and geeky about all things literature. Too bad she also sacrifices innocent people in her spare time.
    Jennifer: Obviously, you've never taught high school. In 20 minutes, I have to start two dozen teenagers on The Crucible, and I honestly have no idea what I'm gonna say.
  • Arch-Enemy: To the Alpha Kali, to whom she was the Druid Emissary - and possibly more. Kali murdered her pack to become part of Deucalion's Alpha pack, but couldn't bring herself to killing Julia, leaving her horribly disfigured but alive. Julia recovered, and swore bitter revenge on the Alphas - and Kali especially.
  • Best Served Cold: Waited for almost a decade to act out revenge on Kali and Deucalion.
  • Big Bad: Of Season 3A.
  • Bitch in Sheep's Clothing: And frigging how. She appears totally like a harmless, delightful and friendly individual, and a supportive teacher - only to turn around and casually commit mass murder, including attempting to kill Danny and Lydia.
  • Character Death: Is killed by Peter Hale after Scott, Derek and Deucalion defeat her.
  • The Chessmaster: Is quite busy manipulating and tricking people left and right, while also performing sacrifices and keeping up her masquerade as a harmless Highschool English teacher.
  • Chronic Backstabbing Disorder: Secures Harris' help, then kills him as part of her sacrifices. Claims to truly love Derek, yet poisons his sister to ensure his protection. Teams up with the heroes to defeat the Alpha pack, only to turn around around and kidnap their parents for her final sacrifice.
  • Cool Teacher: In Season 3A premiere "Tattoo", she texts her students the closing line of Heart of Darkness, both to get them interested in the book and to inform them that it is the last text they will receive in her class.
  • Dark and Troubled Past: Mentions being in psychotherapy, and having been emotionally okay "for a long time". Fails to mention that she was also an emissary, who got horribly mutilated by her Alpha, Kali, and is now on a Roaring Rampage of Revenge.
  • Deadpan Snarker: Upon having to treat Derek’s injuries, she jokes that it’s the weirdest first date she’s ever had.
  • Distressed Damsel: Subverted: she pretends to be one to get people to underestimate her, as she later admits to both Lydia and Derek.
  • Evil All Along/Evil Teacher: She is perceived as a friendly teacher - right up until Season 3 "The Girl Who Knew Too Much".
  • Game Face: Has one in the form of the Darach.
  • Glamour: She's still horrifically mutilated from Kali's attack, but hides behind the comely face of young teacher Jennifer Blake.
  • Healing Factor: After sacrificing "healers," she can heal a gunshot wound to her leg.
  • Hive Mind: Right after she's revealed as the Darach, she psychically controls the entire school band to perform her final Philosopher sacrifice - she forces them to play a magical chant so intensely, one of the piano strings breaks and cuts the piano player's throat.
  • I Have Your Wife: Uses this a lot to force people into helping her. She poisoned Cora with mistletoe to make Derek protect her from the Alphas and offered Derek to release the kidnapped parents for the Guardian sacrifice if he'd be her Guardian.
  • I Owe You My Life: After she's revealed to be the Darach, she appeals to Derek that she isn't manipulating him, that her feelings for him are genuine. She claims to be in debt to him because when he killed his girlfriend Paige in the Nemeton years earlier, he inadvertently gave the tree a spark of power again, which saved Jennifer's life after her attack by Kali.
  • Manipulative Bitch: She pretends to be innocent and fragile as long as it suits her, but will also use emotional blackmail to further her plans: examples are poisoning Cora with mistletoe to secure Derek's help, and seemingly teaming up with the heroes to defeat the Alpha pack, only to kidnap their parents as the final sacrifices.
  • Meaningful Rename: Formerly called Julia Baccari, she chose the name Jennifer Blake for her harmless teacher persona - Jennifer is an anglicized version of the Welsh name Gwenhwyfar, which can be translated as "White Enchantress" or "White Ghost/Fairy," Blake a named derived from Old English, which can mean either fair or dark.
  • Mind over Matter: How she exacts her vengeance on Kali - by levitating multiple shards of broken glass, pointing them towards her, then rocketing the shards into her body turning Kali into a Human Pincushion.
  • My Significance Sense Is Tingling: She's aware of events occurring far away from her location at the time, such as her seeing Scott's attempt to rescue Deaton and Deaton discovering Scott can become a True Alpha in "Currents" while she was at the time being held hostage by the Alpha Pack in Derek's loft.
  • Nice Girl: Averted. Jennifer appears to be a very sweet individual in a Crapsack World, but this turns out to be quite wrong; in reality, she's an Ax-Crazy dark druid pulling off a mass sacrifice to further her own vengeance.
  • Not So Different: Invokes this when Derek accuses her of killing innocents, claiming that he, too, has murdered people.
  • Psychic Powers: Abilities she's gained from her mass sacrifices.
  • Reasonable Authority Figure: As opposed to Finstock or Harris, she’s a soft-spoken, caring, and friendly teacher ... or so it seems.
  • Rescue Romance: Enters one with Derek, after he saves her from getting mauled by Cora and Boyd, and she saves him from dying of wounds received in a battle with Ennis.
  • Secret Keeper: For all of the heroes and their supernatural activities. It turns out that she's far more aware than she lets on.
  • She Who Fights Monsters: Jennifer claims to be working to find balance in trying to defeat and kill off the Alpha Pack - by abducting, murdering several people including innocent teenagers for her own ends, to grant herself massive power and killing innocents who uncover her secret, like Danny and Lydia.
  • Ship Tease: With Derek after he saves her from the feral, moon-crazy Cora and Boyd.
  • Super Strength: She can crush a Sheriff's badge with her bare hand and send Alpha werewolves sprawling across a room with a push. She also delivers a Neck Snap to Ethan and Aiden in their merged form.
  • "Take That!" Kiss: Plants one on Sheriff Stilinski in front of Stiles, Lydia, and Scott before running off with him.
  • Well-Intentioned Extremist: She honestly believes the world to be better off without the Alpha pack - and that this justifies sacrificing twelve people and murdering the occasional bystander.

    Mrs. Finch 

Mrs. Finch (portrayed by Michelle Clunie)

"Who else here thinks they're in the right class? [...] You have two weeks to drop. Tomorrow's test will just weed out the ones who shouldn't be here. And that could be any of you."

Mrs. Finch teaches AP Biology and expects her students to be at the top of their game. She'll ruthlessly cut out anyone she suspects isn't up to her high standards.

  • Dirty Coward: Presumably due to the influence of the Anuk-Ite, in season 6B she just stands by while Nolan and Gabe brutally beat Liam, who refuses to fight back. When Mason begs her to stop them, she is visibly perturbed, but just says "Sometimes it's best to let them work things out on their own."
  • Ice Queen: Mrs. Finch doesn't exactly have a warm personality.
  • Nerves of Steel: Unsurprisingly, given her strong character, she's rather firm in a medical crisis, caring for the victim, and enlisting the help of bystanders.
  • Pet the Dog: When Scott tries to quit her class, she seems disappointed, and encourages him to give it another chance, reminding him that he'll need AP Biology to become a vet. She's also shown to be rather worried when Scott suffers an asthma attack, demanding that one of the surrounding students gets the nurse, and asking for an inhaler.
  • Smug Smiler: Usually wears a rather disdainful expression, but displays the occasional smirk when she's pleased.
  • Stern Teacher: She is openly irritated by slackers and students who don't take her class seriously, and encourages them to leave quickly to the point of bullying. Nonetheless, she acknowledges hard work when she sees it, and is willing to give struggling students a chance - she just expects them to give their best.

    Garrett Douglas 

Garrett Douglas (portrayed by Pete Plosek)

In Season 6, Mr. Douglas is the new physics teacher at Beacon Hills High. Like many of his colleagues, he harbors a dark secret.

  • And I Must Scream: He languished in a vat of chemicals to be used as a science experiment for the Dread Doctors for seventy years.
  • And Then John Was a Zombie: He gets transformed into a ghost rider after all his plans fail.
  • Bad Boss: As shown in the Flashback episode detailing his origins, he killed one of his officers who scoffed art his speeches of the Wild Hunt. He held another at gun point and forced him to step through a rift to the Ghost Riders' realm resulting in man's death just to test his powers.
  • Big Bad: Of Season 6A.
  • Bitch in Sheep's Clothing: Mr. Douglas at first appears to be a charismatic, well-meaning high school physics teacher. He is in truth the vicious, power-hungry werewolf known as "Der Soldat", (German for 'The Soldier'). He also murders people to steal and eat their pineal glands.
  • Compelling Voice: After stealing the powers of a Ghost Rider he has the ability to command and enslave hellhounds - i.e. Parrish.
  • Energy Absorption: He can do this by eating the pineal gland of his victims.
  • Evil Is Hammy: After he reveals his true colors and plans.
  • Evil Teacher: He at first appears to be a harmless high school teacher. Later however it turns out he's not so harmless, killing random people to eat their pineal glands.
  • Expy: Of Jennifer Blake from Season 3, being an Evil Teacher with a sinister plan, a Bitch in Sheep's Clothing and an overall Big Bad.
  • Face of an Angel, Mind of a Demon: Played by the definitely handsome Pete Plosak, but his good looks absolutely mask the sociopathic monster Douglas really is underneath.
  • Healing Factor: This is why the Dread Doctors kept him in a tank ever since they captured him so they could use his healing power - to prolong their lifespans.
  • Hot Teacher: Hilariously demonstrated in his first appearance, when all of the girls and a few of the boys gaze at him dreamily as he conducts the lesson - including Hayden and Corey!
  • I Am A Humanitarian: He murders people so he can eat their pineal glands. Word of God revealed this was to increase his power and help recover from his seventy-year captivity at the Dread Doctors' hands.
  • Incurable Cough of Death: Has a hideous coughing fit during one of his classes, worrying Liam and the others. His coughing is due to his seventy years as a People Jars by the Dread Doctors.
  • It Must Be Mine!: Douglas wants to control of the Wild Hunt and stopped at nothing to achieve this.
  • Kick the Dog: After taking a Ghost Rider's power, he takes to them, erasing various people all around. And let's not forget his using a bleeding Corey to merge the Wild Hunt with the physical plane.
  • Kick the Son of a Bitch: When he sought the help of the Dread Doctors to take control of the Wild Hunt, they double-crossed him, rendered him helpless, then had him languish in a vat as a science experiment for seventy years. Couldn't have happened to a nicer guy?
  • Ninja Pirate Zombie Robot: He's a lowenmensch (a werewolf-lion shapeshifter), an alpha, has the powers of a ghost rider and is a Nazi.
  • Red Eyes, Take Warning: As he's an alpha. His eyes later turn the color of teal after he takes the power of a ghost rider.
  • Serial Killer: In his spare time. He's revealed to be responsible for the murders happening at the start of the season.
  • The Sociopath: Douglas stopped at nothing to achieve his plan to take command of the Wild Hunt for his own means and ends, not even reaping the souls of others who got in his way, the suffering of others see Kick the Dog or the lives of innocent people.
  • Un-person: After he consumes a Ghost Rider's powers, he can erase people at will in the same way.
  • White Hair, Black Heart: He has model blonde hair played by Pete Plosek, but what with his dastardly plan to fuse the world with the Ghost Riders' realm so to rule it, his cruel, narcissistic intentions are displayed.
  • Your Soul Is Mine: After eating a victim's pineal gland, he can grow stronger and heal faster. Word of God explains that his intention was to obtain the power of souls. Once he kills a Ghost Rider, then eats its gland, he gains the powers of one.
    Show creator: "The seat of the soul, he (Douglas) believed that, in order to be on the same level as the Ghost Riders, he also needed to collect the power of souls."

    Tamora Monroe 

Tamora Monroe (portrayed by Sibongile Mlambo)

Meet Beacon Hills new guidance counselor; Tamora Monroe. She’s described as “charismatic and smart” and is said to inspire students with her passion, “a passion that can get too intense."

  • Alas, Poor Villain: At the beginning. Less and less sympathetic however as the season goes on.
  • Bitch in Sheep's Clothing: She initially depicts herself as a simple guidance councillor who wants nothing more than to help the students in her care; only to be revealed that she's a hunter who wants to destroy everyone supernatural in Beacon Hills.
  • The Corrupter: To her students at Beacon Hills High, specifically Gabe and Nolan grooming them to become ruthless killers against the supernatural.
  • Dark Action Girl: Comes with being a werewolf hunter.
  • The Determinator: Not even the prospect of threatening a shootout with the police will stop her. Pragmatic Villainy doesn't really cross her mind in that department.
  • The Dragon: Although she technically leads the hunters, it's pretty clear between the two, Gerard is the ultimate leader of the hunters. Monroe is little more than a protegè and Puppet King.
  • Evil Is Petty: See The Resenter below.
  • Evil Teacher: Is a guidence counsellor who uses her position to corrupt students into being recruits for Gerard's army.
  • Freudian Excuse: Stems from being the survivor of an attack by the Beast of Gévaudan when it attacked her and several other people. When Scott and his friends find those bodies, they do nothing to save her (mostly because they had no reason to think she was still alive). This is what brought about her hatred for anything supernatural.
  • Hate Sink: When we learn her backstory, she tries to play herself for sympathy, but when you take into account her pettiness (see The Resenter), her smug attitude and the lengths she's willing to go as part of her plans, which include manipulating her students, attempting killing innocent people, her "with us or against us" mentality, really just makes her one of the more despicible characters in the show.
  • Hunter of Monsters: To her, anything supernatural is something that needs to be killed.
  • "It" Is Dehumanizing: Insists on calling supernatural creatures "it", and encourages her followers to do the same.
  • Karma Houdini: Even though all her plans go completely topsided, she manages to escape with her life and goes on to try to continue her and Gerard's work. Of course in the And the Adventure Continues ending, Scott and his friends are still out to put a stop to her.
  • The Leader: Technically this to the hunters, as per tradtion for having female leaders. Of course like Kate, Victoria and Alison before her, it's clear Gerard is using her as a Puppet King.
  • Not-So-Well-Intentioned Extremist: Claims throughout the season that she is trying to protect the people of Beacon Hills from the supernatural threat around them. She does this by going after innocent people, including teenagers, threatening to shoot up a police station, and even congratulates Nolan (when it was actually Gabe) for shooting up the McCall house. Doubled with her eagerness to torture Ethan before a small crowd, she admits in that same scene that it's pretty much about making supernaturals afraid of them.
  • The Resenter: Pretty much her primary motivation is that Scott and his friends didn't do anything to save her from the Beast of Gévaudan. This is despite the fact they had no rewasonn to know or even suspect that she was still alive at all.
  • Secret Keeper: Tries to play herself off as this, telling the students they can talk to her about anything, no matter how strange it might be, and anything they tell her is strictly confidential. Fortunately, none of the protagonists fall for it before she's outed as a Hunter.
  • She Who Fights Monsters: Her Start of Darkness begins with surviving an encounter with a monsterous werewolf, however she takes her wrath out on innocent people, supernatural or otherwise and takes a smug satisfaction while doing so.
  • Smug Snake: Pretty much her default setting in a confrontation.
  • Van Helsing Hate Crimes: Her character begins and ends with the fact she simply wants to kill anything supernatural and that anyone who isn't with her is against her, regardless of their innocence or even age.
  • Would Hurt a Child: Is willing and even eager to kill anyone supernatural, including her students. She even admits she doesn't care how old they are.

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