Answer: By a Beta of their own making
It is revealed in the season five finale that the only way a True Alpha's power can be taken is if a beta they created kills them and takes it.
From Quiz: "Teen Wolf" Series Trivia
Answer: Mieczyslaw Stilinski
In "Blitzkrieg", which is the 8th episode of season 6, it is revealed by Sheriff Stilinski that Stiles full name is Mieczyslaw Stilinski. It was further revealed that when Stiles was a child, he had difficulty saying his name and therefore, he called himself "Mischief". Later, a teenage Stiles adopted his grandfather's nickname of "Stiles".
Mieczyslaw is a name of Polish origins which means "Sword" and "Glory".
From Quiz: Ultimate "Teen Wolf" Quiz
Answer: Theo
The episode started in the show's present day. Lydia was locked inside Eichen House, desperate to escape. It cut back to the past, just before the start of senior year. The gang was on its way to the high school to attend a Senior Scribe event. Parrish responded to a noise complaint that led to him helping something escape from the wall of a house. That creature appeared to be a wolf. He left Parrish alive, but badly injured, and went after Scott. He was going to suck out Scott's Alpha power, and tried to do so. In the midst of the fight, another wolf appeared to help. He turned out to be Theo, a friend from the fourth grade who'd long ago left Beacon Hills. Kira had spotted him while stuck in traffic on the way home from the airport, and after the fight, Stiles looked none too happy to see him back. Scott defeated the power sucker, who was later executed by his bosses. The episode ended in the show's present as well.
The Senior Scribe was a touching moment. Derek's initials were already in the library, but we saw Stiles, Kira, Malia, Lydia, and Scott add their initials. Scott added Allison's as well.
Cody Christian played Theo. The incorrect choices are characters from the "Resident Evil" video game series.
"Wolf Watch"- Holland Roden (Lydia) and Jeff Davis (show creator) confirmed that Lydia inside Eichen House was present day, and senior year was taking place in the past. The scientists inside Eichen House were called Dread Doctors, and they had big plans for Beacon Hills.
From Quiz: "Teen Wolf" Season 5 Part 1
Answer: Kate
Early into this season, it was revealed that Kate had been turned into a Were-jaguar when Peter tried to kill her a couple of seasons earlier. She kidnapped Derek at the end of season three, and took him down to Mexico. Scott and the gang figured out he was down there, and went to rescue him from Kate. When they finally located Derek, he was a teenager with no memories of his life as an adult. Sadly, Allison died at the end of season three. Or did she?
From Quiz: MTV's "Teen Wolf" Season 4
Answer: Charlie and Max Carver
The twins, upon becoming Alphas, had the ability to join their bodies together and become one super werewolf. Charlie and Max Carver are what's known as mirror twins. They are almost identical, with minor differences, and mirror each other in terms of one is right handed and one is left. Charlie was born on July 31st and Max on August 1, about seven minutes apart. They revealed these facts on "Teen Wolf Revelation", the follow up episode to the mid-season finale "Lunar Eclipse". The pair also played the Scavo twins on "Desperate Housewives".
From Quiz: MTV's "Teen Wolf" Season 3
Answer: searching for a dead body
Scott's best friend, Stiles Stilinski, has a habit of being right in the middle of trouble, either because of or in spite of his father's job as the sheriff of Beacon Hills. Having heard the call about half of a body being found in the woods, he dragged Scott out to look for the other half.
Stiles was quickly caught by the police, who were also looking for the body, and Scott was left to fend for himself. He showed Stiles the bandaged bite the next day and insisted he was bitten by a wolf, though Stiles says there are none in California. Later that night, the bite had mysteriously healed.
From Quiz: Bitten by a Teen Wolf
Answer: Tyler Posey
Scott and his best buddy Stiles were more or less socially awkward teens on the sidelines of the popular crowd when the series began in June 2011. While exploring the forest nearby for a missing girl, Scott was attacked by an Alpha male and bitten. Afterward, he began to experience some exciting and unusual changes.
Joshua and James played Pacey and Dawson respectively on the hit series "Dawson's Creek" and Chad was Luke Scott on "One Tree Hill". Tyler Posey got his acting start early, playing the young son of Jennifer Lopez in the movie "Maid in Manhattan".
From Quiz: MTV's "Teen Wolf" Seasons 1 and 2
Answer: Cora
Scott and Allison dated through seasons one and two of the show.
Scott and Malia get together towards the end of the final season.
Scott and Lydia make out in the coach's office in season one.
From Quiz: "Teen Wolf" Series Trivia
Answer: Liam Dunbar
In the 3rd episode of season 4, Scott was forced to bite Liam to save the latter from falling off the roof of the hospital because a Wendigo had Scott's arms pinned.
Although unrelenting at first, Liam gradually warmed up to Scott and his pack, going as far as to risk his life to save his Alpha.
From Quiz: Ultimate "Teen Wolf" Quiz
Answer: Corey
Corey was the chimera who was left without "claws or fangs", but did have the ability to cloak himself like a chameleon. He was referred to as a chameleon several times in this episode. Inside his cloaked form, Corey could see the Ghost Riders, but not be marked for the Wild Hunt. He was also able to use that ability to discover the identity of the Riders' latest victim. Corey and Mason saw Jake Sullivan hanging by the Riders' ropes and then vanish, but because the Riders erase a person's existence, they immediately forgot exactly what they'd witnessed. Little by little, they were able to piece together Jake's identity, and once they did, the memories of him returned- thus the theory of quantum superposition and the earlier episode reference to the experiment known as Schrödinger's Cat. The episode title does have two Is at the end, that is not a typo. It appeared as though Corey might be the only way to make the disappeared people return to reality, or at least the memory of those people.
Also in this episode- Scott was drawn to Stiles' locker, number 1075, and even tried to break the lock on it, but was caught by a teacher. Lydia had visions of a train, and she, Malia, and Scott realized that they were all trying to remember the same person. They knew that person had once appeared in a photograph taken in the previous episode.
From Quiz: "Teen Wolf" Season 6 Part 1
Answer: His father
The sheriff realized Theo's story was actually about Stiles, and not Theo himself. Stiles had killed Donovan in self defense, and he knew that intellectually. But, in his heart, he felt like he'd murdered Donovan because he wished him dead. His father told him he needed his heart to catch up with his head.
Also in this episode, the last chimera made its presence known. According to both Theo and Gerard Argent, the creature was an old beast, resurrected by the Dread Doctors. Its only purpose was to snuff out life, whenever it came across it. It also had a connection to the Argent family. La Bete. The Beast of Gevaudan, which Allison learned was connected to her family many years earlier. Scott and Stiles decided they'd get their pack back together, one at a time. And, Lydia remained comatose at Eichen House, though she was able to astral project herself.
From Quiz: "Teen Wolf" Season 5 Part 2
Answer: Stiles
Stiles, still ever suspicious of Theo, compared his father's signatures on an eight year old speeding ticket to the signature on a very recent student transfer form. Scott wanted to give Theo the benefit of the doubt about his story, but allowed Stiles to question him about how he'd become a wolf. When that story seemed plausible, and Scott seemed no more suspicious than before, Stiles dug up the signature issue. The signatures did look slightly different, and Stiles pointed out all of the stylistic reasons why they did not match. Then, he and Liam followed Theo out to the woods. That trip turned out to be innocuous as well. Scott showed up on Stiles' stakeout and asked him why he never trusted anyone. Stiles angrily yelled that it was because Scott trusted everyone. At the end of the episode, it was shown that Theo was not a good guy. Earlier Stiles said that he remembered Theo from fourth grade, and that this guy was not Theo. I think he was right.
From Quiz: "Teen Wolf" Season 5 Part 1
Answer: Banshee
In season two, Scott was able to hear Lydia's piercing Banshee scream from miles way. But, it was Jennifer who labeled her in season three. Lydia would find herself inexplicably drawn to freshly murdered people. And, she continued to scream a deafening sound when agitated. As the season wore on, her power grew and she became very much a part of Scott's pack.
From Quiz: MTV's "Teen Wolf" Season 3
Answer: Lacrosse
Jackson, played by actor Colton Haynes, started the series off as the star of the team. Jackson was very popular, though not that nice of a person, and dated the object of Stiles' obsession, Lydia Martin. After Scott's performance enhancing transformation, he too became a star on the team. The more Jackson witnessed of Scott's talent, the more he needed to know what had caused the sudden change.
From Quiz: MTV's "Teen Wolf" Seasons 1 and 2
Answer: Laura
Peter Hale and his nurse lured Laura Hale back to Beacon Hills with the body of a deer with a spiral. After she returned, Peter killed Laura in order to steal her Alpha power so he could seek his revenge against the Argent family for the murder of his.
From Quiz: "Teen Wolf" Series Trivia
Answer: Banshee
Lydia is able to sense when someone is danger, an ability which her grandmother Lorraine also possessed. She is also able to correctly locate a dead body, and in some cases she is also able to locate a dying body.
Lydia's most prominent ability as Banshee is to emit a high pitched scream which is deafening to people who hear it. As of season 5, Lydia is able to direct this scream towards certain people, utilizing it as a defensive weapon.
From Quiz: Ultimate "Teen Wolf" Quiz
Answer: They rode in on lightning
In the previous episode, mountain ash had been used to protect Scott's house in order to keep people safe from the Ghost Riders. One got inside the house anyway, and Corey touched it. When he did, the Rider became visible to everyone, making them all marked for the Wild Hunt. In this episode, Mason figured out that lightning strikes were increasing exponentially whenever the Riders appeared, and there was a strike mark left inside Scott's house. They figured out that the Riders rode the lightning inside the house from above, there by not crossing the line of mountain ash that should keep out any supernatural creatures. They also figured out that Jordan Parrish had been the one to make that Rider go away that night, and that the Hellhound was the enemy of the Riders.
Also, after looking at Claudia Stilinkski's medical files, they began to feel like no Stiles had ever existed after all. They were also unable to find a relic for him. I initially thought Claudia was Stiles' relic, but at the end they showed his Jeep still parked in the school parking lot. Claudia had been dead before Stiles disappeared, because she suffered from frontotemporal dementia. She was alive again after the Riders took Stiles. We would find out why as the season went forward.
From Quiz: "Teen Wolf" Season 6 Part 1
Answer: Scott and Stiles
Kira's mom took her there, seen at the end of the previous episode "Damnatio Memoriae", to try and get control over the Kitsune inside her. The Skinwalkers informed them both that if Kira passed their test, they would be able to help her. If not, Kira would stay there and become a Skinwalker as well. Kira failed the test. She was told "you wield the sword, the fox wields you". Kira's mom changed her mind, and decided she wouldn't leave her daughter there. They began to fight off the Skinwalkers, and Scott and Stiles arrived in time to help. They'd been on their way for awhile, but Stiles' Jeep kept breaking down and/or running out of gas.
Theo told one of the chimeras, Tracey, that "Damnatio Memoriae" was written on the lockers at school in an attempt to get the beast to remember "who it was". Tracey asked him if it wasn't just another hybrid teenager like themselves. He said it was more than that, as the Dread Doctors needed a "body" to serve as a vessel for the beast to be reborn. Plenty of clues were leading to the possibility that the beast was connected to Allison Argent. At the end of the episode, Liam and Mason told Scott that Corey had revealed Theo was looking for a blind Alpha- Deucalion.
From Quiz: "Teen Wolf" Season 5 Part 2
Answer: Kira
Tracy was the Kanima/chimera, but not the same kind Jackson had been. She had been made into one by science, and not by birth, bite, or scratch. In a particularly gross scene, Tracy's skin split all the way along her spinal cord and a very long reptilian tail came out. Kira, in fiery Kitsune form, seized an opportunity to slice off Tracy's tail during battle. Kelsey Asbille (Chow) played Tracy.
From Quiz: "Teen Wolf" Season 5 Part 1
Answer: Canine Distemper
A teacher at the school had been recruited as an assassin for the Benefactor. He used his skills to develop a weaponized version of Canine Distemper. It was Dr. Deaton who figured it out, and Derek and Satomi who figured out the cure. Satomi had regularly drank a special kind of rare tea, and in the past had shared it with Derek's mother. Derek told Dr. Deaton that they were in luck, as some of the ingredients were saved in their family vault. The tea was made from wild Reishi mushrooms, which are commonly found in China. That last tidbit courtesy of "Wolf Watch", hosted by star Jill Wagner.
From Quiz: MTV's "Teen Wolf" Season 4
Answer: Mrs. McCall
Though she did accept a date with the alpha werewolf, Mrs. McCall remained blissfully ignorant of any supernatural activity in Beacon Hills. Allison, however, discovered that her father and aunt were both werewolf hunters and that Scott was one of their targets! Derek Hale is a werewolf like Scott, though he was born that way instead of bitten. Jackson found out over the course of the season about both werewolves and werewolf hunters. He desperately wanted the bite so he could return to his previous state of being better, faster, and stronger than Scott at lacrosse.
From Quiz: Bitten by a Teen Wolf
Answer: Sebastien Valet
In the late 1700's Sebastien Valet was a French soldier of an evil nature who drank rain water from the paw print of a wolf, turning him into a monstrous beast with smoke-like shadows. He went on a killing rampage, killing approximately 500 innocent people according to Theo Rakaen.
Sebastien was killed by his sister, Marie-Jeanne Valet, using a steel pike which was created under a full moon using her own blood, mountain ash and wolfsbane.
Sebastien was revived in season 5 by the Dread Doctors using Mason Hewitt as a chimera. During this time, Sebastien terrorized the residents of Beacon Hills, until he was finally killed by Scott using the same pike wielded by Marie-Jeanne Valet.
From Quiz: Ultimate "Teen Wolf" Quiz
Answer: April 8, 1987
Lydia, Scott, and Malia traveled to the ghost town of Canaan. Malia found the town on a map, but she could only find it on a map that was thirty years old. Once inside the town, they found a newspaper and a receipt that had the last date the town experienced in 1987. That was the date the Riders came through and took everyone except a banshee named Lenore (played by McNally Sagal). Lenore had been so devastated by the disappearance of her town that she conjured her dead son Caleb, who'd drowned in 1985. Lydia was afraid that would happen to her in Beacon Hills, if she was the last person left there.
Also in this episode, Melissa saved Chris Argent with a special mixture of nine herbs which could counteract mystical toxins. Kira's mom brought Kira's sword to Liam, who used it to conjure Theo back from the Skinwalkers. Theo informed them that the Ghost Riders must be stuck if they hadn't already moved on.
June 23, 2016 was the date of "Brexit", when the British voted themselves out of the European Union. December 8, 1980 was the date musician John Lennon was killed in New York City.
From Quiz: "Teen Wolf" Season 6 Part 1
Answer: Malia Tate
Malia traveled to a place called Fort Jewett, which she said was in Beacon Hills, to find her birth mother, the Desert Wolf. Braeden and Theo went with her, meanwhile a comatose Lydia Martin (who's not a shifter, but a Banshee) had a vision of Malia's death. Theo betrayed Malia (no surprise there), because the Desert Wolf had something he wanted. He traded Malia for a jar of ice blue talons. It was unclear whose talons they'd been. Deaton was tied to a chair, as the Desert Wolf had been using him for information and bait. When the Beast showed up, it almost got Deaton, but Malia saved him in time. He'd saved her already, by reminding her mother she had to kill Malia during a full moon to take her power. Malia, Deaton, and Braeden got away.
Also in this episode, Meredith tried to get Lydia to learn how to focus her voice in her own way. She told Lydia that her (Meredith) way had gotten people killed. Chris Argent and his devious father Gerard were able to get Jordan to remember that he was a Hellhound. In the story, the Hellhound and Beast fight in a epic battle that destroys everyone around them. Theo's band of chimeras found Deucalion, who said all he wanted in exchange for info on the Beast was Scott's eyes on the tips of his claws.
Tyler Lockwood was a shifter in the "Vampire Diaries" universe and Josh was a shifter on "Being Human". Seth Gilliam, who played Deaton, also played Father Gabriel on "The Walking Dead".
From Quiz: "Teen Wolf" Season 5 Part 2
Answer: He was now an Alpha
They had to go to a "dark place" in their ice cold, semi-drowned state, in order to find the Nemeton. They awakened 16 hours later, each with knowledge of the Nemeton's location. A big fight ensued there, with loved ones in danger, and finally Jennifer hid within a magical circle of Mountain Ash. Scott then forced his way past the magic, which allowed Deucalion to kill Jennifer. Scott was now an Alpha.
It was Harry Potter who had to allow Voldemort to kill him in order to defeat him; it was Buffy who found out that "death is your gift" in the fifth season of her series; and Angel who had to pretend to be evil to defeat the Circle of the Blackthorn in his series finale.
From Quiz: MTV's "Teen Wolf" Season 3
Answer: bowling
Stiles was very quick to point out that Scott is a terrible bowler and Scott himself admitted that he hadn't bowled since a birthday party when he was eight years old. He threw several gutter balls before a very flirty Allison managed to raise his heart rate, activating his keen werewolf senses. Jackson became very suspicious when Scott started suddenly bowling strikes.
After the date, Scott walked Allison home and they shared a kiss outside of her house. Chris, her werewolf hunter father, watched unhappily from the window.
From Quiz: Bitten by a Teen Wolf
Answer: Jackson
After Derek's transformation into an alpha, Jackson approaches him, saying that Derek owes him for saving his life and helping him kill Peter so he could get his power. We see Derek lunge at Jackson as the first season ends and the second opens with Jackson crawling from a body of water with a bite on his side. When Derek finds him later, he sees that Jackson's body is fighting the bite, he then turns Isaac, quickly followed by Erica and Boyd.
From Quiz: "Teen Wolf" Series Trivia
Answer: Kate Argent
The hallucinations Allison endured were of her aunt, Kate Argent. The intensity of these hallucinations, and Allison's own fear, nearly caused her to kill Lydia Martin and Isaac Lahey. Apart from this, Allison also developed a tremor in her hand causing her to struggle as an archer.
From Quiz: Ultimate "Teen Wolf" Quiz
Answer: They opened a portal to the Dark Tower
He said they were made by the Dreads and had a certain frequency. This frequency was known by Gerard, as seen in the previous episode. He said that Theo meant to put the talons over his own, like press-on nails, and use them to siphon off the beast's powers. It wouldn't happen though, because the talons had been made by the Dreads for a certain person only, and much like the wrong organ in a transplant, they would kill Theo if he used them. These all turned out to be lies, and the talons Theo had were not the same ones made by the Dreads, the Desert Wolf had kept those for herself.
In this episode, we are more or less caught up with the future seen in glimpses from earlier season five episodes. It's time to get Lydia out of Eichen House. They use Kira to cause a brown out to reboot the computer system. A black out would lock the entire facility down, and they'd all be trapped inside. She was able to pull it off, but there was no longer a card reader to get into the place Lydia was being held. Scott and Liam tried to push the door off, but the mountain ash inside that part of the hospital weakened them. Jordan came along to help get the boys inside the asylum, and when the time came, he turned into the Hellhound and melted his way inside.
From Quiz: "Teen Wolf" Season 5 Part 2
Answer: Lydia's scream
He needed a recording of her Banshee scream, but they were reluctant to give him something with so much power. He admitted that he wrote the book and it was a true story. The Dread Doctors being in Beacon Hill was like the next chapter in the story. Waiting just outside of Valack's cell, beyond the mountain ash, were Scott and Kira. They could not cross the ash to get near the doctor. The Dread Doctors and Theo had manipulated the gang into going to Eichen House, and Kira's Kitsune power short circuited the mystical laylines that kept out evilies like the Dread Doctors. Lydia finally gave in and recorded her scream for Valack, and the Dreads came in and took out his third eye. This gross procedure did not kill him. When they left, he used Lydia's scream to break the glass of his cell.
From Quiz: "Teen Wolf" Season 5 Part 1
Answer: Deputy Parrish
Jordan Parrish (actor Ryan Kelley) turned out to have some sort of supernatural ability, thus explaining why his name was also on the dead pool. Deputy Haigh set Parrish ablaze at the start of episode nine, "Perishable", but he survived the fire unscathed. Derek and Scott were not able to figure out what he was, supernaturally speaking, in this episode. But, his life saved Stiles and Lydia from Brunski when they went to Eichen House to figure out the secret Lorraine Martin left behind. The Sheriff, at this time, was in the hospital awaiting a bullet removal surgery. The end of the episode revealed that our Benefactor was none other than Meredith Walker (actress Maya Eshet).
From Quiz: MTV's "Teen Wolf" Season 4
Answer: Scott
Malia had been in her animal form for eight years, following the accident that killed her mother and sister. Scott had been afraid to change into wolf form, for fear he'd never change back. The former Alpha twins, Ethan and Aidan, were able to help Scott with this problem. He had to turn into a wolf, and use his Alpha roar to get her to revert to human form. It worked, and she was reunited with her heart broken 'father', played by Todd Stashwick. Todd had also been on "Weeds", "Heroes", "Justified" and "The Originals". Shelly Hennig played Malia. Shelly was also on the one season witch show "The Secret Circle". Also in this episode, Peter had a finger cut off by a mysterious older woman played by Ivonne Coll. Ivonne spent many episodes as Adriana Vasquez on "Switched At Birth".
From Quiz: MTV's "Teen Wolf" Season 3
Answer: Magic Bullet
The bullet used by Allison's aunt, Kate Argent, contained Nordic Blue Monkshood, a type of wolfsbane. After being shot, Derek developed many symptoms including pallor, inability to control his powers, vomiting, and an even grumpier mood than usual. Without another bullet to cure himself with, his last chance at living was having Stiles cut off his arm. Luckily for both of them, Scott showed up at the last minute.
The Argents are extremely skilled hunters and follow a code of conduct. Kate, however, has been known to break the code on several occasions. It was she who set the fire that killed most of Derek's family.
From Quiz: Bitten by a Teen Wolf
Answer: Derek
The season ended with Derek killing Peter and becoming the new Alpha. This prevented Scott from obtaining his werewolf cure from Peter. Jackson, Allison, Stiles and Scott all played a part in burning Peter alive, debilitating him enough for Derek to kill him in the first place. Afterward, Jackson came to Derek wanting his reward for helping to kill Peter. Derek gave Jackson what he wanted, the bite, which went on to be fully explored in season two. Allison's scary mom (played by actress Eaddy Mays) told her husband that Kate would not go down for something she didn't do, so Kate may not have been the one to start the fire that killed so many of the Hales six years prior.
From Quiz: MTV's "Teen Wolf" Seasons 1 and 2
Answer: Oni
In the season 3B finale, Scott and Stiles are searching for Lydia while Isaac, Allison, and Kira are fighting the Oni, supernatural creatures conjured by Kira's mother to kill the nogitsune. With the pack losing the fight, Allison fires her last arrow, which kills the Oni she hit, just before she is stabbed by another's sword, killing her.
From Quiz: "Teen Wolf" Series Trivia
Answer: Stiles, Lydia, Liam, Malia, Mason, Hayden, Dr. Deaton
At the end of season 6A, Scott's pack includes, Stiles Stilinski (Human), Lydia Martin (Banshee), Liam Dunbar (Werewolf / Scott's Beta), Malia Tate (Werecoyote), Mason Hewitt (Human), Hayden Romero (Werewolf) and Dr. Deaton (Druid).
Some of the allies include Jackson Whittemore (Werewolf), Melissa McCall (Human), Chris Argent (Hunter), Sheriff Stilinski (Human) and Ethan (Werewolf).
From Quiz: Ultimate "Teen Wolf" Quiz
Answer: Lowenmensch
They described him as a Lowenmensch, half wolf half lion. Though, it's more commonly known as a half lion, half man. Theo explained that he'd been a soldier under Hitler's regime, and then encased in fluid for seventy years by the Dread Doctors. While in that fluid, a wound from a Ghost Rider's whip seeped into the fluid, making Mr. Douglas more powerful. When he came out of the fluid, he had powers of a wolf, a Ghost Rider, and more. He wanted to harness the Wild Hunt as his own army of supernatural soldiers.
Also in this episode, Douglas used the whip to disappear Chris Argent and Melissa McCall. Peter Hale saved Scott and Malia from Riders, and was then disappeared. And, Noah Stilinksi finally accepted that Claudia was not real, and remembered he did have a son. He went to Scott and the pack, and admitted he knew he had a son, a son named Mieczyslaw Stilinski. We finally learned Stiles' first name. The incorrect choices are all supes seen on "Supernatural".
From Quiz: "Teen Wolf" Season 6 Part 1
Answer: Mistletoe
Valeck was going to use one of the Dread masks to help Lydia see who the Beast actually was, and he thought it was worth her life to get the information. But, before he could get it on her, she screamed and blew half his head off. In the end, it was Parrish (Jordan) who was able to save everyone from a potentially fatal Banshee scream when he fold himself over her as she let loose. The hole in her head amplified her abilities, and needed to be sealed before it killed her. Deaton pumped in what he said was mistletoe and she returned to normal. Theo ended up with the Dread mask (for lack of a better term) at the end.
Also, we found out that the original Beast was a male killer from the late 1700s. Once the Beast remembers being that particular human male, the teenager it was housed inside would cease to exist. They had to stop that from happening.
From Quiz: "Teen Wolf" Season 5 Part 2
Answer: Theo
Mason did speak with Kira about languages she spoke. She told him she did not speak Japanese, nor did she speak Korean, which was her nationality of origin. But, it was Theo who made a recording. The gang had been together to try and read the "Dread Doctors" book, which was supposed to trigger any memories of them. Everyone fell asleep, except for double agent Theo. He went to Kira and recorded her speaking in Japanese, and later told Scott he'd done so. He also told Scott that a rough translation of her words was "I am the messenger of death". Scott admitted to Theo that he wasn't sure he could trust Kira anymore and that her fox aura may be taking control of her.
From Quiz: "Teen Wolf" Season 5 Part 1
Answer: Peter
Chris followed clues to Kate and it led him to the water treatment plant. He found Peter there, instead of Kate. Peter had promised Kate not to kill her brother, but he couldn't allow Chris to leave. So, he impaled Chris with rebar and into a cement wall, and then bent the bar around him.
Peter: "Now you rest here awhile. You've had a hard time ...for a very long time."
In the episode of "Wolf Watch" for the previous episode, Ian Bohen said he'd lobbied to show creator Jeff Davis that Peter be redeemed and end up a force for good. He also added that the possibility had never really been on the table for Peter to be a good man. To me, though, he's an extremely sexy bad guy.
From Quiz: MTV's "Teen Wolf" Season 4