Niklaus Mikaelson

* Human
* Hybrid

* The Big Bad Wolf, Coward, Beast, Hideous Creature, The Deathless Vermin, Abomination, Degenerate, Bastard, Boy (All by Mikael)
* Evil Hybrid, Dick (Both by Jeremy)
* A legend, All-powerful wolf-vamp, Hybrid-freak, Honey, Lying mama-killing, dagger-happy brother, The Immortal Hybrid, Buddy, Dick (All by Damon)
* Bob (by Caroline)
* Voldemort (by Alaric)
* The Baddest Dude in all of History (by Josh)
* Nik (by Rebekah, Kol, Lucien, Freya, Stefan, Genevieve and Aurora)
* Brutal Sadistic Monster (by Davina to Klaus and Elijah)
* My Sweet Love (by Aurora)
* The Bastard Child, The Wolf King, Klaus the Mad (all by himself)

## Physical information

### Species

* Hybrid (Werewolf, untriggered, Witch, untapped; Originally)
* Original Vampire (Formerly)
* Original Hybrid (Werewolf/Original Vampire) (Currently)

### Eye color

Dark blue-green(Human form)Gold with black veins under his eyes(Hybrid form)

## Family information

### Family members

* Ansel † (Biological Father)
* Esther Mikaelson † (Mother)
* Mikael † (Step-Father)
* Dahlia † (Maternal Aunt)
* Freya Mikaelson (Maternal Older Half-Sister)
* Finn Mikaelson † (Maternal Older Half-Brother)
* Elijah Mikaelson (Maternal Older Half-Brother)
* Kol Mikaelson (Maternal Younger Half-Brother)
* Rebekah Mikaelson (Maternal Younger Half-Sister)
* Henrik Mikaelson † (Maternal Younger Half-Brother)
* Hope Mikaelson (Daughter with Hayley)
* Jax Mikaelson (Son with Camille)
* Alexander Hale (Grandson)
* Luna Hale (Granddaughter)
* Freya's Unborn Son † (Nephew)
* Marcel Gerard (Adopted Son)
* Cary (Paternal Relative)
* Davina Claire (Half-Sister-in-Law)
* Keelin (Half-Sister-in-Law)
* Nik (Nephew)

## Supernatural Information

### Significant sires

* Lucien Castle † (1002)
* Mary Porter †
* Alistair Duquesne †
* Marcel Gerard (1835)
* Jenna Sommers † (2010)
* Ray Sutton † (2010)
* Paige and her pack † (2010)
* Derek (2010)
* Tyler Lockwood † (1st time as a werewolf) (2010)
* Mindy † (2010)
* Tony † (2010)
* Daniel Warren † (2010)
* Nate † (2010)
* Dean † (2010)
* Kimberley † (2010)
* Chris † (2010)
* Adrian † (2010)
* 10 Hybrids † (2010)
* Pizza Delivery Girl † (2011)
* People at the Bar † (2011)
* Kieran O'Connell † (2012)
* Many unnamed vampires over the course of 1000 years
* Four unnamed hybrids (via Hope's blood) (2026)

### Significant kills

* Esther Mikaelson (1st, 3rd and 5th time)
* Original Members of The Five
* Petrova Family
* Marcel Gerard (as a human)
* Papa Tunde's Twin Sons
* Papa Tunde (1st time)
* August Müller (as a vampire)
* Isobel Flemming (as a vampire/compelled)
* Jules
* Jenna Sommers (as a human/vampire)
* Elena Gilbert (as a human/resurrected)
* Tyler Lockwood (as a werewolf)
* Mikael (both times as an Original vampire)
* Alaric Saltzman (6th time)
* Paige's Pack (as werewolves)
* Tyler's Pack (as werewolves/hybrids)
* Carol Lockwood
* Joshua Rosza (as a human)
* Katie
* Davina Claire (resurrected)
* Tim (compelled)
* Kieran O'Connell (as a vampire)
* Abigail (2nd time)
* Ansel (2nd time)
* Lenore (as a witch)
* Gia (as a vampire/compelled)
* Josephine LaRue (2nd time; body only)
* Dahlia
* Anton (as a vampire)
* Rayna Cruz (4th time)
* Gaspar Cortez (as a vampire)
* Lucien Castle (2nd time, as a vampire)
* Alistair Duquesne (2nd time, as a vampire)
* Will Kinney
* Sofya Voronova's family
* Dominic (2nd time)

### Cause of death

* Stabbed through the heart (as a werewolf/witch)
* Staked with a White Oak Stake (as an Original)(body only)

### Killed by

* Mikael (as a werewolf-witch hybrid)
* Alaric Saltzman (body only)

## Appearance

### Episode count

* 46 (TVD) (including 1 archive footage appearance)
* 92 (TO)
* 1 (LGC)
* 139 (Total)

### First seen

* Klaus (TVD)
* Always and Forever (TO)
* Just Don't Be a Stranger, Okay? (LGC)

**Niklaus Mikaelson** (***Elder Futhark:** ᚾᛁᚲᛚᚨᚢᛋ ᛗᛁᚲᚨᛖᛚᛋᛟᚾ*) was the main protagonist (and sometimes antagonist/anti-hero) of *The Originals*. He was a former main character, antagonist/anti-hero of *The Vampire Diaries*. Klaus was an Original vampire and a werewolf, making him the Original Hybrid.

Klaus was the biological son of Ansel and Esther Mikaelson, the step-son of Mikael, and nephew of Dahlia. Klaus is the maternal younger half-brother of Freya, Finn, Elijah, and the maternal older half-brother of Kol, Rebekah and Henrik Mikaelson. Klaus was the uncle of Freya and Mathias' unborn son and Freya and Keelin's son, Nik. Klaus is the father of Hope, whose mother is Hayley, and the adopted father of Marcel Gerard, an orphan boy he rescued and eventually turned into a vampire.

Klaus was first mentioned in the second season of *The Vampire Diaries* in *Rose*, during a conversation between Rose and Stefan Salvatore. Rose warns Stefan about the Original Vampires which led to Elena Gilbert believing Klaus was the oldest vampire in history. Elijah later mentions that Klaus is a recluse and trusts very few people, usually only in his inner circle.

For over a thousand years, Klaus had been trying to break a curse placed on him. He created the myth of the sun and moon curse in order to find the moonstone and the Petrova Doppelgänger, both of which were needed to break the actual curse. His goal was to liberate his werewolf side so he could sire his own super species of werewolf-vampire hybrids.

In 1492, he finally got the chance to break his curse when he met Katerina Petrova, the final piece necessary to break the curse. However, Katerina managed to foil his plan to use her in the sacrifice by turning into a vampire. For the next 500 years, Klaus searched for a way to break the curse without the doppelgänger, forcing generations of witches to help him. During his search for a way to break the curse, Klaus hunted down his family and neutralized them. He also hunted Katerina, who had escaped him and stolen his moonstone. However, it should also be noted that he was also on the run from his step-father, Mikael, as Klaus had an abusive childhood.

Besides his family, during the 1920's, Klaus formed a strong bond and brotherly relationship with Stefan. He then met with the vampire, Caroline Forbes, and starts to care about her, eventually falling in love with her and tried to win her love, and after a long time they were friends. In New Orleans, he had a father/son bond relationship with Marcel whom he works with in ruling New Orleans until Klaus discovered his treachery for bringing Mikael to New Orleans. They reformed their friendship when Marcel saved his daughter and they worked together to bring down their enemies. He also cared for the bartender Camille O'Connell, with whom he had fallen in love before her death.

**Klaus** was primarily a member of the **Mikaelson Family**, and a member of an unnamed **Family of Werewolves**. He was connected to the **Labonair Family**, a royal werewolf family via his daughter, and a member of the **North East Atlantic Pack** as well as an unnamed **Witch Family**.

## Early History

Main article: Timeline
* Human Life
* 1002
* 1114 A.D.
* 1300s-1500s
* 1700s
* 1800s
* 1900s

### Mystic Falls, The Middle Ages, 10th Century

Niklaus Mikaelson was born to Esther and Ansel in a small village that would eventually become known as Mystic Falls, but was raised by his step-father Mikael, both believing he was his true father. Niklaus has six half-siblings fathered from his step-father Mikael, a Viking warrior and wealthy landowner who moved with his wife, Esther, to the New World after their home village was devastated by a plague. Mikael believed his beloved first born daughter Freya was a victim of it, not knowing she was taken by Esther's sister Dahlia as payment for a fertility spell to let Esther have children. Klaus was close to his family with the exception of Mikael. Mikael was inordinately hard on Klaus, having become an aggressive, violent, and strict man after he thought Freya died, always trying to teach his children to survive so he would not lose another child. In Klaus' case, Mikael was abusive to him for his impulsive and reckless behavior, justifying that his punishments would make Klaus stronger, but Mikael was only ever disappointed in everything Klaus did and beat him repeatedly throughout his mortal life. Elijah said that, as a mortal, Klaus was full of love and wanted to be loved in return. After becoming an Original Vampire and werewolf hybrid upon triggering his werewolf gene, his amplified temper and emotions, along with the psychological damage of Mikael's cruelty, turned Klaus into a violent and cruel person, much like his step-father Mikael. Many years before, his mother had an affair with a man from their neighboring village, whose inhabitants were known to be werewolves, men who transformed into wolves on the night of a full moon.

Once as kids, Elijah takes Niklaus into the woods to teach him how to hunt. Elijah encourages his brother,

stating that his aim has been improving, when he misses a shot; however, Mikael intervenes and scolds Elijah for encouraging his brother and snatches the bow from Niklaus, stating that he wasn't man enough to hold a weapon. Niklaus tries to apologize, but Mikael sees him as a weakling and starts kicking him. Elijah tries to stop his father from hurting his brother but he is scared off by Mikael who stated that if Elijah intervened he would be next.

He was once beaten, half to death, as a boy, when his father's blades went missing. In the days following the incident, Rebekah was particularly kind to him, which Klaus later realized meant that she had been the one to take them.

Niklaus and all his siblings used to play in the woods when they were kids, showing they all loved each other dearly. He even stayed awake, to comfort a scared Rebekah by holding her hand during a stormy night, and giving her a carved wooden knight, which he made for his father, stating that it will protect her, something that he has kept safely to this date as memento of his childhood.

Esther found a young Klaus in the woods once when he was hiding from Mikael, as Mikael wanted to bring him along to hunt, but Niklaus was afraid to go with Mikael. He was afraid so she gave him a necklace which he believed would protect him and remind him that Esther will be with him always and forever. A few years later, Mikael hurt Klaus in the woods during a fight between them, with Klaus starting the fight by believing that if he beat his father once, Mikael would show his approval to Klaus. Esther helped Klaus to heal. Klaus told her about the fight and that Mikael wanted to take his necklace she gave him. In *Every Mother's Son*, Klaus found out that the necklace made him weak, not strong. Because of Esther's spell, Klaus was weakened and his anger suppressed as she didn't want him to be strong, kill somebody and trigger the werewolf gene. This would reveal that Klaus was not Mikael's son, and she feared Mikael would kill them for her unfaithfulness and betrayal.

Both Niklaus and Elijah were in love with Tatia, even though she had a child with her husband who died in battle. They both vied for her attention and even had arguments and traded blows over her. She eventually chose to be with Elijah. Centuries later, Elijah finally told Niklaus he killed Tatia. Niklaus was very angry with Elijah over this, but he chose to forgive him. They later found out that Tatia's blood was used for the Immortality Spell placed on them, being the doppelganger of Amara, the world's first Immortal woman, as her blood was a powerful tool for a witch's spells.

Niklaus was once flogged by Mikael severely for taking his knife to carve chess pieces. When Elijah comes in and tries to stop his father from beating Niklaus to death, he gets pushed back. Rebekah then intervenes by threatening to kill their father with a sword if he doesn't stop beating Niklaus. Mikael snatches the sword from Rebekah and leaves in a rage.

When Niklaus and his brother Henrik went to see the wolves transform, Henrik was killed by one of the transformed werewolves. Devastated at the loss of another child, Mikael convinced Esther to use her magic to protect their remaining children. Upon Mikael's request, Esther performed a spell, called The Immortality Spell, which transformed Niklaus, his siblings, and his step-father into Original Vampires, the first vampire's to exist, and progenitors to the vampire species.

When Niklaus made his first human kill, his werewolf gene was activated and he became a vampire and werewolf hybrid, thus revealing Esther's infidelity. Soon after becoming a Hybrid, Mikael had Elijah help him restrain Niklaus, and Esther to use her Dark Magic to place a curse on him which forced his werewolf side to lie dormant, and then rejected and abandoned him.

Mikael then hunted down and killed Niklaus' father and his entire family, not realizing that doing so would ignite a war between vampires and werewolves that has been perpetuated across the ages. In retaliation for the curse and rejection, Klaus murdered his mother and framed Mikael for the act.

After killing Esther, his family scattered and Niklaus stayed behind with Rebekah to bury Esther. Rebekah promised to never turn her back on him, like Esther did and so did Elijah. They swore to each other they would stay together always and forever.

### Southern France

While fleeing from Mikael after the death of their mother, Klaus ran with his siblings for a significant amount of time, feeding on people along the countryside but always being careful to hide the bodies. Unsure of where they were going, Kol brought up the idea that maybe they should split up so as to better avoid their father. Finn agreed with the idea, tired of the killing and running, taking no pleasure in their descent into vampirism. Elijah was quick to remind his siblings of their vow to remain together always and forever.

When they discovered a caravan filled with fine clothing belonging to victims they had just killed, Rebekah suggested they steal the clothes and pose as the victims since they were heading to a nearby castle. When they found a servant of the castle who was escorting the cart to its destination, he told them he could help them in their potential ruse. They put it to a vote, whether they should let him live. Kol and Elijah wanted to kill him, while Finn and Rebekah wanted to spare him. Ultimately, Klaus had the deciding vote and he voted to spare the servant. The servant, Lucien Castle, presented them to the count after trying to help them blend in and present themselves as nobles. After almost being caught, their plan worked and they were welcomed into the count's court. Some time later, Niklaus started an affair with the Count's daughter, Aurora de Martel. Despite knowing that his then friend; Lucien, loved her as well, he continued seeing her. But one day, they were caught by Lucien, who was so angry with Klaus, he started a fuss, that led Aurora's older protective brother Tristan de Martel to hear them. Aurora, not knowing Klaus was a vampire, feared for his life, and told him to flee - and he did. But Lucien didn't run on time, and Tristan caught him and tortured him because he was with his sister. Elijah and Klaus (who felt guilty) tried to talk Tristan out of it, but he revealed that because of Kol's antics he know what they are, and about their lies, and threatened to expose them if they don't stay out of it. Later Klaus came to rescue Lucien, but he was too angry of his betrayal that he stabbed him, despite knowing what he is. But then some of Klaus' blood spilled on Lucien's wounds, healing them. Lucien thought that he became like Klaus, and went after Tristan for revenge. But he got speared by a guard before he could get to him.

Later that night, Niklaus and Elijah stood over Lucien's funeral pyre, with Elijah asking his little brother if he was sure that Lucien didn't become one of them. Klaus replied that he tried to heal him with his blood but failed. Elijah then realized that they can only cure the living, and left. Just as Klaus was about to burn Lucien's body, he rose back, waking up in transition. Later, Klaus found his new vampire progeny feeding on women in the chapel. He tried to calm Lucien, and asked him to show restraint and asked if was still mad at him, but Lucien said that he wants Klaus to show him what it means to be like him, and said that he is no longer angry with Klaus, as he has given him a rare gift, and so, the two of them started wreaking havoc together. At the same time Klaus and Aurora's affair continued, until she saw him, Rebekah, and Lucien feed together, and she ran screaming. Later Klaus wrote her a letter explaining his family's unique condition, and she eventually understood and continued seeing him. But after that she begged him to turn her, and he refused. After some time, it was Aurora's birthday, and he brought her flowers. But he found Aurora crying in the chapel, she told him that she killed her mother as she gave birth to her. Klaus, wrecked with guilt, and saddened about killing his own mother -and unable to tell anyone about it- blurt out his secret to her. Afterwards, he found out that Aurora tricked his sister to giving her blood, and jumped from the roof - and turned to a vampire. The two slept together in the chapel.

Short time later, an upset Finn informed his siblings that the villagers talks about demons feeding on human blood. The Mikaelsons realized they have been exposed, and that their father is on his way. Klaus came to Aurora's room, to take her with them, but she refused to leave her brother, and said she didn't love him, breaking his heart; and so, he left, leaving her. Unknown to anyone, Elijah compelled Aurora to think that, as he learned from her that Klaus killed their mother - and this was his revenge. Afterwards, desperate to avoid to their father, Elijah compelled Aurora, Lucien, and newly turned Tristan to think that they are Rebekah, Klaus and Elijah; respectively, so they can be a decoy. Some time later, the Mikaelson siblings run from their father, left France, and settled in Tuscany.

### Italy

Klaus was with Elijah and Rebekah in 1114 AD Italy when they met a man named Alexander, a vampire hunter who was part of The Five. They spent a lot of time with him—the brothers in order to discover his plans for killing vampires and Rebekah because she loved him. Alexander did not seem to suspect them; they wore their daylight rings, allowing them to walk in the sun without burning, unlike the vampires whom Alexander killed on public display. However, when Klaus and his siblings were invited to a party at Alexander's home, the members of The Five daggered them in their sleep. Klaus, with half werewolf lineage, could not be neutralized by the White Oak Ash Daggers and upon awakening killed all of The Five, including Alexander. He undaggered his siblings (except for Finn) and found out from Rebekah that the weapon Alexander had told her about was a "cure" for vampirism. As a result of slaying The Five, Klaus was forced to endure 52 years, 4 months and 9 days of the Hunter's Curse - torturous hallucinations that haunted his dreams and every waking moment in an attempt to make him kill himself, but unable to, given his near-indestructible state.

### 1359

According to Elijah, Klaus has lost much of his humanity, hiding his loneliness with cruelty and anger.

### England, 1492

Klaus was an English nobleman during the late 15th century when he met Katerina Petrova, the second doppelgänger whose appearance he had been awaiting for five hundred years. Planning to use her in the ritual, he had kept her entertained until the full moon, but she learned of his plan before it could take place and escaped, taking the moonstone with her. As she fled, she encountered a vampire named Rose, whom she tricked into turning her into a vampire, thus ruining forever Klaus' plan to use her to break the curse. After Katerina turned into a vampire, Klaus assumed that her family line ended with her and that his chance to break his curse was gone forever. In retaliation, Klaus traveled to Bulgaria and murdered Katerina's entire family for her defiance.

### Copenhagen, Denmark. 1500s

It was mentioned by Freya in Save My Soul, that the Mikaelson siblings resided in Copenhagen in the 1500s.

### Cádiz, Spain, 1702

In 1702, Kol's violence in Spain drew too much attention and brought Mikael, straight to the family, burning the country in his wake. While the flames drew closer and Mikael beheaded Klaus' horse, Theo. Elijah and Klaus searched for Kol while Rebekah brought the daggered Finn on-board a ship to flee from Europe. They found him in a tavern where he drank and feasted on humans carelessly. Despite their warnings of Mikael's coming, he refused to flee. When Klaus and Elijah insisted, Kol attempted to resist them but was subdued by Elijah as Klaus pulled out one of the white oak ash daggers and successfully neutralized Kol.

### New Orleans, 1700s

[

Having fled the Old World, escaping Mikael , Klaus, along with Rebekah, and Elijah, and their daggered brothers sailed across the Atlantic ocean to the new world, their once childhood land; through the Mississippi River, and arrived in New Orleans, 300 years from the present. Upon arriving off the coast of New Orleans, they slaughtered all the men who boarded their ship, but left one alive to question and carry their luggage. In 1720, Klaus and Elijah helped the Governor in building the New Orleans' first levees.

### New Orleans, 1800s

At some point in this century, Klaus came across Rayna Cruz after she returned to New Orleans. She terrorized the French Quarter and killed many of his best men which made him nervous of her power.

### New Orleans, 1820

In 1820, Niklaus, Elijah, and Rebekah were living in New Orleans at the Governor's mansion; and were paying the governor in gold to keep quiet about the existence of vampire's. One day the Governor threw a party for the Mikaelson's. Rebekah went up stairs with the Governor's son, who she wanted to turn. Rebekah went to Elijah with the Governor's son and asked if she could turn him, to which Elijah suggested it wouldn't be a wise move to turn the Governor's son into a vampire. In that moment, Klaus took the Governor's son and threw him off the second story, killing him immediately. Klaus and his brother attended the funeral of the Governor's son, when Klaus sees a man whipping a child. Klaus saves the child; and decides to care for him. He names the child Marcellus.

He later meets the Governor to ask for Marcellus' freedom and chokes the Governor's neck until he grants the freedom. Niklaus asks Marcel about his father and quotes that family can be more than just those with whom they share blood and that they can choose. Marcel looked touched by his words.

In 1820, Klaus is seen challenging a man in a duel; but Klaus wins the duel. Elijah then becomes a little worried and asks Klaus if it is not enough, that he has slaughtered dozens in just these past several weeks. Klaus explains that a city littered with bodies will surely travel the oceans. Elijah asks his brother if he wants to bring their father upon them; but Klaus tells Elijah to relax. Klaus then explains that he has sent rumor that the bodies are a result of the witches seeking blood sacrifice for their rituals. Elijah is shocked because he is in love with a witch named Celeste; but Klaus isn't concerned. Elijah takes a revolver and shoots at Klaus, who groans with pain. Klaus sees that Elijah cares about Celeste and warns that they're rounding up the town's witches as they speak.

### New Orleans, 1821

Klaus grew jealous as Marcellus grew closer to Elijah rather than him. Feeling lonely, he undaggered his younger brother, Kol, so he'd have someone to have fun with. The two began happily causing chaos across New Orleans, even slaughtering an entire tenement building for fun. When Klaus revealed that he'd choose Marcellus over Kol, though, Kol grew angry and threatened to turn Marcellus into a vampire. Klaus, realizing his brother was too wild to control, daggered Kol yet again.

### New Orleans, 1835

By 1835, Marcel and Rebekah spent practicing fencing, when Marcel was finally an adult, he could best her in a duel he attempted to make his move on her only to be stopped by Klaus. Despite pleading with Klaus to let him be with Rebekah, Klaus still shot him down and forbid him from pursuing her. However this did not stop Marcel from trying again and making out with Rebekah. They were abruptly torn apart physically by Klaus who decided to punish them by daggering Rebekah.

In the same year, Marcel gets shot by the the Governor while trying to free some slaves. A dying Marcel forces Klaus to turn him into a vampire or let him die as a human. Niklaus against his wishes, gives in and fulfills Marcel's desire to become a vampire.

### New Orleans, 1887

In 1887, Klaus undaggered Rebekah, revealing he had left her daggered for 52 years. When she had asked to see Marcel, as she feared Klaus had killed him, Klaus sadistically revealed that he gave Marcel an ultimatum. Either live a long human life with Rebekah and die; or become a vampire, but to stay away from Rebekah. He chose the latter, even walking into the room as a proof, devastating Rebekah.

### New Orleans, 1914

During the holidays, after catching his brother Kol in the act of stealing a rare paragon diamond (which he confiscated from Kol, together with Marcel), Klaus learned from Rebekah during a Christmas dinner party, that Kol was conspiring with some of the New Orleans witches against him. During the party that was hosted at the compound, Klaus made a speech about loyalty and betrayal, prompting Kol to try and flee from the party. Klaus pursued him and, in front of all of their guests, yet again daggered his brother with Elijah's help.

### New Orleans, 1918

In 1918, Klaus wanted to convince Marcel not to fight in World War 1. He told him that he needs to stay with him at New Orleans, where the people who care for him are, but Marcel left New Orleans anyway- to fight the Germans. Much later Klaus visited Marcel on the war front in France, to entice him to drink blood of young ladies. At the same time he offered Marcel return to New Orleans. Marcel was starving, but he refused Klaus' offer again because he didn't want to leave his men.

### New Orleans, 1919

In 1919, Klaus tried to make arrangements with werewolves in the city, so his rule could remain hidden. But their meeting is soon interrupted by the witch Alphonz Bellatunde Delgallo, also known as Papa Tunde, who demands to know how would it benefit for the witches. He demands a tribute as he thinks he is also the king in this city and brings them the head of the mayor who he has killed. Klaus doesn't like it and decides to find out who this enemy is. Klaus befriends him to find out his weaknesses so he could destroy him. With help of the Marcel (who just returned from WW1) he finds out that Papa Tunde channels two twin witches who always accompany him and kills them to get rid of this rival.

During this time, Klaus was very critical of Marcel and Rebekah's relationship, and they were determined to remove Klaus from their lives, and unbeknownst to Klaus, used a witch to call Mikael to New Orleans.

Six months after this, Klaus and Elijah attend a local club underneath the Opera Theater, and Klaus flirts briefly with Lana, the "Werewolf Queen" and owner, before he and Elijah contemplate the unification of New Orleans. Elijah tells him they worked together to build up the city, but it was originally Niklaus' vision.
Sometime later whilst sharing a drink with Elijah, Klaus notices Marcel and Rebekah attempting to convincingly avoid each other, as he stands, Elijah tries to pull him down to refrain him from causing trouble.

Instead of condemning the pair, Klaus admits that as they move into the new era, attitudes must change. He toasts to Marcel and Rebekah, that they find joy in each other and that he has killed Rebekah's lovers to protect her from a broken heart if they have to move. However they are now home and he wants her to be happy.

After a morning with Lana, she proposes tickets for the Theater that night. Rebekah and Klaus are later seen in a box at the Theater, and Rebekah heads towards the lobby to find Marcel. As Klaus is left alone and the curtain about to lift, Mikael appears behind him, poking his back with the White Oak. Mikael taunts him over the word "father" and that his real father would be just as embarrassed before telling him his plan. After Klaus demands Mikael just kill him, he is proud of his achievements in creating the city, Mikael taunts death will come, however afterwards he will stay in New Orleans.
He will stay long enough to make sure everybody who remembers Klaus will be dead, and it would be as if he never even existed. As Klaus mulls this over, the curtains lift and Mikael announces he made some changes, sarcastically baiting he would love them. The audience applause's and laughs, compelled by Mikael as the curtain reveals Lana, impaled with a stake and Marcel is staked to a cross, barely conscious.

Klaus tries to save Marcel however he is thwarted by Mikael, and Rebekah intervenes only for Mikael to stab her and push her aside. Only when Elijah appears, they decide to run, that it was too late to save Marcel who Mikael was feeding on. As they flee, Klaus feeds Rebekah his blood to heal her as they hear Mikael approach. She is devastated at Marcel's apparent death and reveals it was her fault. Klaus denies this, instead apologizing to her, saying this was his fault, and as the Opera burns to the ground ahead of them with screams rippling from inside, that he thought they found a home. Elijah tells them to leave, that he will hold Mikael off. After hesitation, Klaus grabs Rebekah and the two leave New Orleans.

### Chicago, 1920's

During the 1920's, a few years after the New Orleans incident Klaus and Rebekah were yet again on the run from Mikael. The siblings were in Chicago in 1922 where they met the vampire Stefan Salvatore, whom Rebekah fell in love with. At first Klaus hated Stefan, but he grew to like him once he discovered that Stefan was a Ripper and they became good friends.

One night, the speakeasy they were at was attacked, apparently by the police, though it turned out the raid was led by Mikael. Before he left, Klaus compelled Stefan to forget him and Rebekah. Later, when he and Rebekah were about to leave Chicago, Rebekah told Klaus that she was tired of running and wanted to be with Stefan. Klaus then forced her to choose between him and Stefan; she chose Stefan. Afraid of being left alone, he neutralized his sister with a White Oak Ash Dagger, then took her body with him in a car and left Chicago.

### Rostock, Germany, 1933

In 1933, in Rostock Germany, Klaus and Elijah meet August Müller; they criticize his art. Klaus looks into the werewolf massacres and learn that August was slaughtering "beasts". He eventually kills August, but spares his family, Greta, Antoinette, and Roman Sienna; ultimately shaming them in the process.
## Personality

* Untriggered Werewolf-Witch Hybrid
* Original Vampire-Original Hybrid

While he was still an untriggered Werewolf-Witch hybrid, Klaus had a complicated life. He was close with his half-sister Rebekah, whom he affectionately called "Bekah", and with his half-brothers Elijah and Henrik. He also had a close relationship with his half-brother, Kol, but he did not get along at all with his half-brother, Finn, since childhood. However, he had a bad relationship with his overbearing step-father Mikael who was harder on him than any of his siblings. He was a victim of his step-father's physical and verbal abuse since childhood. Klaus even admitted to Rebekah that Mikael frightened him which made him constantly seek his approval without ever finding it. His mother Esther often tried to calm Mikael when he became angry with Klaus, but she never tried to stop him from humiliating or from physically/mentally abusing her son. Also as an untriggered werewolf, Klaus had the aggressive behavior of one, but he could not act on it due to his mother making him wear a magical necklace, created to weaken his strength and thus leaving him vulnerable to Mikael's abuse. These following reasons led him to resent both his parents and possibly to be jealous of his maternal half-siblings for having their approval. In the director's cut of the backdoor pilot of The Originals, Elijah pointed out that as an untriggered werewolf, Klaus was so full of love and life, and that all he ever wanted was to be loved in return, especially by his step-father. This belief that no one loved him and that he was doomed to be alone forever was the main factor that changed Klaus' personality.

When Klaus was just in the early stages of being a hybrid, he slaughtered six villagers. Which afterwards, he was devastated and cried into Elijah's shoulder. After finding out that Mikael is not his biological father, he was shocked and betrayed. Klaus is continuously described as being cruel, sadistic, careless, paranoid, reckless, impulsive, short-tempered, aggressive, volatile, unpredictable, slightly unreasonable, narcissistic, manipulative, jealous, obsessive and competitive. Though he shows little to no regard for human life in general, Klaus feels guilt and remorse for most of his actions, he just does not show it, and he also has morals. Despite his negative traits, Klaus has shown to be very protective of his younger half-sister Rebekah, who stayed by his side for centuries, and he is not pure evil, he is just sadistic. Unbeknownst to any, Klaus was not the son of Mikael, but the son of an alpha werewolf named Ansel, in another village which made Klaus aggressive, violent and angry. When he became a vampire, all these emotions were heightened and Klaus' temper became worse than ever. Years of humiliation and physical/emotional abuses at Mikael's hands and Esther's indifference, coupled with her rejection of him as her son, led Klaus to kill his own mother in revenge and for betraying him. After this, Klaus shut off his humanity to any but his family, killing any who crossed his path. Vengeful and power-hungry, he will stop at nothing to achieve his ends and remove those who stand in his way. However, Klaus does not believe that death is a punishment as seen when he denies Katherine death, instead keeping her alive so that she will suffer for having betrayed him. He will also place usefulness before pleasure and keeps people alive when it suits his needs. He has also shown a penchant for working with witches which was mentioned by Katherine in *Know Thy Enemy*. Klaus also has a sense of honor and will not go back on his word although, he will always look for loopholes in the deals he makes.

In 1933, despite the fact that his werewolf side was dormant at the time, Klaus still held werewolves in high regard. When he discovered August Müller, a vampire, had been massacring innocent werewolves as well as spreading his beliefs about the purity of species, i.e. that vampires are the apex predators, Klaus ruthlessly killed August and his followers. Despite this, he would spare August's wife and children.

Klaus has also shown a sadistic side notably when he deals with humans or vampires who have crossed him, such as Elena, Damon and Katherine (his sadistic nature is often mistaken as psychotic) however, Klaus' hunger for power actually hides a deep fear of being alone which must stem from his step-father's treatment of him. He wants the hybrids so that he will not be the sole member of his race as Esther intended when she placed the curse on him. He also desires, beyond anything else, to be reunited with friends and family as shown by his desire to have Stefan, his one-time friend, and his family back at his side. According to Elijah, Klaus also uses his cruelty to hide his fear of being alone. He has shown to have a softer side when he is around Caroline, or a member of his family, but rarely shows it around other people. Caroline brings out Klaus' humanity. He also holds grudges against the people who try to kill him, or members of his family, and rarely lets it go. Klaus is self-preserving whenever he is in a situation where he could be killed permanently, he reveals information that keeps him from being killed, like when he told Elijah that he didn't bury their family at sea, or when he told Stefan and Damon he is the one who sired their bloodline. Klaus rarely gets made a fool out of and also doesn't like to be made a fool out of either. He is rarely caught off guard. Klaus is highly intelligent, calculating, thinks of contingencies, he (secretly) admits he makes mistakes and learns from them as well, he is always two steps ahead of his enemies. Klaus is not a very forgiving person; as he rarely forgives people in general. Despite him being the world's most physically powerful immortal supernatural being, he often pretends to be arrogant to mask his fear of being alone, he is not completely fearless, he is afraid of the White Oak Stake, because it is the only physical weapon that can permanently kill him, other than the white oak stake, Klaus is also afraid of becoming like his step-father, Mikael. Klaus has a sarcastic sense of humor and he is sarcastic even towards members of his own family. Despite his lust for power, Klaus still cares about the remaining members of his family. Despite being manipulative, he does not like being lied to or manipulated. He does not take being betrayed very well, especially if it is from a member of his family. He is not tolerant of people who disappoint him in general. He has very little tolerance for disloyalty, if any of his friends or members of his family have try to kill him, or betrayed him to his enemies who wants him dead, Klaus disowns them and no longer see them as his friends or family; like Esther, Finn, Rebekah and Marcel. Klaus is ruthless and brutal towards his enemies, as he rarely shows any of his enemies mercy. Also if anyone tries to hurt or kill a member of his family, most of them will not live to regret it.

Klaus can sometimes be cold and ill-mannered, he is also not above killing children, if they are a threat to him or his family, despite this Klaus dislikes people in general who mistreat or abuse their children; due to how he was mistreated and abuse by his step-father, Mikael. Due to the fact that he was betrayed by Esther, Klaus does not trust people in general, he only trust those who have proven themselves trustworthy to him. He wants people in general, to be loyal to him and respect him of their own free will, he does not like to compel people to be loyal to him against their free will, he only does this if he believes they are plotting against him or his family.

Like Elijah, Klaus can easily be provoked when disrespected, as he has no tolerance for those that disrespect him, like his best friend Marcel, who spoke down to him. Klaus retaliated by biting Marcel's best friend Thierry Vanchure, to teach his best friend a lesson, to never disrespect him again or there will be consequences. Although he puts up a tough demeanor, deep down Klaus cares about his family; he just has a lot of difficulty showing it. Initially, Klaus hated being a vampire, after he was turned into one, but he eventually accepted his vampire nature, although he revels/embraces both his werewolf and vampire natures, there is still some part of Klaus, that resents Mikael and Esther for turning him and his maternal half-siblings into vampires against their free will. He later admitted to Esther that he forgives her for turning them and prefers them as vampires.

During his time in New Orleans, Klaus has grown to genuinely care about his unborn child, and was deeply hurt/enraged when Elijah and Hayley falsely accused him of using her to sire more hybrids; that he violently bit Elijah in retaliation. Although, he does still maintain a twisted sense of humor about his child as he once referred to his child as "that" when discussion how to keep it and Hayley safe from Marcel. Klaus is also shown to be more mellow as he was shown to genuinely regret daggering Elijah and went out of his way to show how sorry he was, even going as far as to spare Agnes for trying to kill his unborn child just so Elijah could keep his word. It is possible that being in his former home, with his family, has caused his humanity to show more. Klaus has also shown to have matured greatly as he no longer uses the White Oak Dagger to put down his maternal half-siblings when he disagrees with them like before but instead settles things in a civil and sometimes violent matter. As the baby's birth approached, Klaus became more and more protective of both her and Hayley. He even had a nursery built right next to Hayley's bedroom so she could be near her baby. His undying love for the child is evident as he willingly sent the child away from the chaos in New Orleans so that she could grow up properly in the loving arms of her aunt Rebekah.

Even if he is cruel, we can see he still has a part of humanity which is shown when he's about to cry when he sees his dead half-brother (Kol), when he admits his love for Caroline or when Hayley is pregnant of their child and he's fighting for her safety. Unlike Elijah, Klaus is far less calm, composed, and strategic in battle. Despite his temper, Klaus is shown to be very keen as he was able to figure out that Hope would be sacrificed at the cemetery because it was where the Harvest and the Reaping took place as well as the location of the ancestral witches' burial place. Klaus does seem to care about Tyler to a degree. When he told Caroline he defeated Tyler, he left out the detail that Tyler tried to kill Hayley and his unborn child. This could be due to not wanting Caroline to hate Tyler, however, it is very likely that he just wanted to keep his child's existence a secret as much as possible, as Klaus has made many enemies over the years, (until his child is old enough to protect herself). Klaus also did mention after Stefan watched knowingly as he walked into a trap by his hybrids, he wanted to kill Stefan but he fought the urge to and mentioned it took three days to finally lose the urge to kill Stefan, when he could have ended it in an instant by killing Stefan. In Season Two of *The Originals*, Klaus is shown to have developed strong paternal instincts since the birth of Hope. One such case is his belief a parent who trades their child for anything deserves a punishment worse than death. Klaus has also mellowed great deal a since season one, so much so he, in an ironic twist of fate, restrained Elijah when he lost his temper when Finn threatened Rebekah (and unknowingly Hope) unlike before where he would just let the blood flow. Klaus' main concern is keeping his daughter safe now that she has returned home.

Klaus has also developed strong friendship instincts. One example was when he gave up an opportunity to kill Mikael when he threw Papa Tunde's Blade at Camille and chose to safe guard her life over killing Mikael. Although he is paranoid and mistrustful, these traits have proven to be correct on more then one occasion, like with his maternal half-sister Freya, who he does not trust to begin with, due to the fact that she resurrected his maternal half-brother Finn, and indirectly helped the latter find Hope. Since the birth of his daughter, Klaus has become far more mature, responsible and selfless, and far less reckless, impulsive and selfish, as Hope has brought out the best inside him. Despite this, he still can be, though to a far less extent; cruel, sadistic, vengeful, ruthless, manipulative and jealous as when he declared only he will decide what is the best way to protect his daughter, not his maternal half-siblings or Hayley, and Dahlia picked up the fact that he fears Hope will grow up to call her step-father Jackson "Daddy". Klaus is a brilliant strategist, and skilled in making people suffer, traits he inherited from his mother. however, unlike Esther, he never underestimated members of his family, or his enemies, he committed immoral acts; he killed Elijah's girlfriend Gia, and daggered him with Papa Tunde's Blade, compelled Marcel to kill Rebekah, (who is in the body of the late Eva Sinclair) if she tries to escape the compound, had Dahlia reactivate the Crescent Curse on the Crescent Wolf Pack and Hayley. All these actions of his was partly as revenge/punishment for betraying him/for trying to take his daughter away from him, and mainly to gain Dahlia's trust to take her down.

Klaus still has guilt and remorse for most of his actions, however, he still refuses to show it; but he only shows his remorseful nature towards Camille. He also still has morals and a sense of honor. By the end of the second season, Klaus no longer has a sensitive side; as he no longer cares about what people in general think about him, particularly his maternal half-siblings and Hayley, with the exception of Hope. In his new role as a parent, Klaus has gradually begun to reveal an unexpected aptitude towards the demands of fatherhood by placing his daughter's needs above his own. In the act of abdicating his rule over the French Quarter and handing the reigns of control back to Marcel for the sole purpose of focusing his attention on raising Hope, Klaus exhibits a phenomenal turn-around in his priorities and power-hungry nature as well as in embracing the advent of parenthood and the experience of a new, self-sacrificing love. As a member of the North East Atlantic Pack by blood, Klaus does not get along with any member of the Crescent Wolf Pack at all, for good reason, with the exception of Aiden and Hayley, until the latter betrayed him; by trying to take Hope away from him.

In Season Three, Klaus is warned of a prophecy by Lucien Castle (the first vampire he ever sired) that the remaining Original Vampires will fall in one year, he initially brushed it off, but realizes that Lucien may be right about the prophecy. He also realizes he has to become the ruthless hybrid he once was (prior to him fathering Hope), he joins forces with Elijah and Freya to try to stop the prophecy.

By the end of the third season, Klaus chooses to sacrifices himself to save the rest of his family, going to his trial, for the sins he has committed over the centuries, despite knowing the fact that the trial was nothing more than a joke as Marcel and his former sireline already found him guilty before he was put on trial, condemning him for his actions that he had committed, while he claims he did it in order to protect his family. Klaus condemns them saying they would do the same thing. Klaus is upset that his friendship and family bond with Marcel had ended, as he understands Marcel's anger and vengeance, however, (silently) he cannot make excuses for his ex-best friend's behavior, the look on Klaus' face moments before Marcel stabbed him with Papa Tunde's blade; clearly indicates that he plans to make Marcel suffer for his treachery against him and his half-siblings.

Even five years after his imprisonment, Klaus' personality has not changed much as Marcel had failed to break him emotionally. Initially, he did not want to be reunited with his daughter, as he was afraid that he would fail Hope as her father (as he did not want her to become like him) just like he did with Marcel, despite his best efforts. After some encouragement from Camille O'Connell, a manifestation of his subconsciousness in responses to the torture of the Tunde Blade, he overcame this fear.

When an entity known as The Hollow threatened his daughter's life, he reluctantly returned to New Orleans to deal with this threat once-and-for all, though he gained a disdain for New Orleans, due to the fact that it reminds him of all the horrible things that had happened to the people he cares and love for, such as Camille's death. Despite this, and in an effort to change for Hope, Klaus has become far more merciful. This is evident by the fact that he gave two of the Hollows' followers a choice; they could renounce their allegiance to their master, and leave New Orleans; or they can be killed where they stand, instead of killing them out right as he normally does when there is a threat to his family.

Prior to being rescued by his family from Marcel, Klaus has developed slight PTS (post traumatic stress) as he dislikes being locked up, even if it is for his own protection. Despite this, he shows no remorse for his actions in regards to others in the same aspect, such as with Marcel, knowing the feeling of being secluded for an extended period of time.
## Attitude Toward Humans

Based on what has been seen throughout both *The Originals* and *The Vampire Diaries*, like Katerina Petrova, Klaus has no regard for human life. However, like Stefan Salvatore, Klaus has been known to keep memoranda of his kills.

In *The Originals*, upon learning of his unborn child, Klaus was willing to allow the witches to kill his unborn child and Hayley to show that he will not be given an ultimatum. Klaus, however, realized what the child could do to his life and saved them, suggesting that he cares about his family. He is shown to kill humans if it suits to his advantage or for feeding. However, he is shown to care for some humans, such as Kieran O'Connell, someone he respected; prior to his death, and Camille O'Connell, his trusted therapist, friend, and a woman he was in love with; prior to her death.

## Physical Appearance

Klaus is an attractive man. His height is 5'11 (1.80 cm). Klaus possesses curled dirty-blond hair and dark blue eyes that contrasts with his pearl-white skin. His physical appearance is that of a man between 19-21, despite being over 1000 years old. As a vampire and a warrior (from the 10th century), he is well-built. Klaus possesses a delicate and yet masculine face, possibly due to the fact that he was a nobleman between the 11th and the 18th centurys.

Klaus' clothing style is quite casual, usually seen wearing shirts, jeans and jackets, although he can also use a more classic and refined outfit if the situation requires it (ex: the ritual of the moonstone; the Original ball thrown by Esther). He uses accessories, such as leather bracelets or necklaces as seen in most of his scenes on both shows.

## Powers and Abilities

**Original Hybrid Physiology: Klaus** has the powers and abilities of both werewolves and Original vampires, both physically enhanced powers and abilities of mind compulsion. Klaus will grow stronger and faster when he is using his lycanthrope enhancement due to his werewolf side. His strength and speed will also increase during a full moon. Klaus is slightly more physically powerful than his maternal half-siblings, even more so when enraged, using his lycanthrope enhancements or when he is in his werewolf form; due to his werewolf heritage.

* **Super Strength:** Klaus is much stronger than many other supernatural beings and humans. He is able to decapitate other species with a single chop and shatter windows and doors with small objects. He is even slightly physically superior to the Original vampires, even more so when enraged, using his lycanthrope enhancements, or when he is in his werewolf form. Both Elijah and Kol have displayed the ability to fight Klaus on almost equal terms, though not enough to defeat him. Elijah has been able to fight Klaus to a stalemate and has even defeated him once, while Rebekah has been easily subdued, though unlike Elijah, Rebekah very rarely fights back. Klaus' strength is enough that he could kill twelve non-Original werewolf-vampire hybrids single-handedly, and was able to fight and kill twenty-four non-Original vampires on his own with only some difficulty as well as kill six Evolved werewolves with little difficulty. Klaus has also been able to put up more of a fight against beings who have overpowered his siblings in strength, such as holding Alaric to a standstill over the White Oak Stake when he had become an Enhanced Original vampire whereas Rebekah was easily overpowered. In *The Devil Comes Here and Sighs* and in *Where Nothing Stays Buried*, Lucien, an Upgraded Original vampire, was proved to be much stronger than Klaus in their confrontations.
* **Super Speed:** Klaus' intensified quickness, agility, reflexes, and endurance makes him much faster than immortals, non-Original vampires, werewolves, evolved werewolves, non-Original werewolf-vampire hybrids, supernatural hunters and humans, he is slightly faster than his Original Vampire maternal half-siblings, as he once said, "I'm faster than your average vampire", even more so when he is using his lycanthrope enhancements or when he is in his werewolf form; due to his werewolf heritage. He is able to stop other supernatural species in their tracks and run miles in mere minutes. His reflexes are similarly heightened, as he once caught Connor's arm before the latter could stab him with a small stake; he later saved both himself and Connor from an explosion intentionally triggered by Connor to kill both them and Damon. Only Marcel and Lucien, as Upgraded Original vampires, have been able to surpass his speed.
* **Super Agility:** Klaus possesses much more superhuman stamina, flexibility, reflexes, agility and dexterity than any immortals, non-Original vampires, werewolves, evolved werewolves, non-Original werewolf-vampire hybrids, and humans, even slightly more than original vampires. He can move, jump very high, flip, climb, and run incredibly fast without difficulty or exhaustion.

* **Super Senses:** Klaus has a more enhanced sense of hearing, sight and smell that far exceeds those of other supernatural beings.
* **Super Durability:** Klaus can take far more trauma than other supernatural beings without much discomfort or injury. However, like with his maternal half-siblings, he has never been dismembered, implying that his durability may be close to invincibility though he can still be hurt. Wood and White Oak Ash Daggers do not weaken him, making him virtually indestructible.
* **Enhanced Healing Factor:** Klaus heals and recovers faster from any and all injuries than those of other supernatural beings. He also seems to heal much more quickly when exposed to vervain, wolfsbane, or wood than the individual species. Vervain or wolfsbane laced liquid has also been shown to weaken him, though he recovers from the effects much more quickly. Human blood has also been known to make the healing process faster.
* **Immortality:** With the last White Oak Stake destroyed, no physical weapon on earth can kill Klaus. Nothing but immense magical power worth a hundred witches summoned by an exceptionally powerful witch, or the bite of an Upgraded Original vampire, can kill Klaus. Despite the extent of his immortality, Klaus still needs to feed otherwise he will desiccate and become immobile just like any other immortal or vampire-based species.

* **Day Walking:** Due to his werewolf heritage, Klaus is immune to the lethal effects that UV rays and sunlight have on vampires thus allowing him to walk in daylight without the use of a daylight ring.
* **Emotional Control:** Due to his vampire heritage, Klaus is able to exert certain control over his own emotions and can turn off his humanity.
* **Enhanced Emotions:** Because of his vampiric and werewolf traits, Klaus experiences emotions more powerfully than humans and other supernatural beings. Particularly due to his werewolf heritage, he experiences emotions such as anger, rage, aggression, and violence more deeply and more prone to violence and rage than the other Original vampires. However, emotions such as love, joy, and happiness are intensified for him as well, allowing him to live life more intensely. This ability allows him to feel emotions at his peak regardless of his age.

* **Lycanthrope Enhancement:** Klaus is capable of using his werewolf features to further supplement his powers. Klaus can grow werewolf claws and fangs even when he is still in his human form. Klaus can display both sets of vampire and werewolf fangs. His eyes also change into those of his werewolf form, presumably granting him better eyesight. Due to his werewolf heritage, Klaus' strength and speed are heightened further during a full moon and at its peak in his werewolf form.
* **Mind Compulsion:** Klaus can compel the minds of most sentient creatures; humans, non-Original vampires, and non-Original hybrids. He cannot compel supernatural hunters that are members of the Five due to them being immune to mental manipulation. Klaus cannot compel werewolves, evolved werewolves, or any of the other Original vampires. His inability to compel werewolves was even confirmed by Ray Sutton.
* **Shapeshifting**/**Transformation Control:** Klaus has the ability to transform into his werewolf form at will. Elijah informed Klaus that he remained a wolf for two days, even when the sun was up. He can transform some features partially, displaying his werewolf eyes and teeth.
* **Sire Bond:** Non-Original werewolf-vampire hybrids turned by Klaus had a deep sense of gratitude and commitment to him, causing them to obey his every command.
* **Telepathy:** Klaus has the ability, albeit a weak variant, to enter the minds of others as long as he is stronger than them. Normally, this ability works in a tactile fashion and requires physical contact to work successfully. Klaus has also been able to share his memories with others.
	+ **Dream Manipulation:** Klaus can control dreams and subconsciousness. He can produce and modify dreams, bestow nightmares, or lucid dreaming. Other effects of this ability are the distortion of reality and trapped in the dreams.
	+ **Illusions:** Klaus has the power to trick the minds of others into seeing or feeling things that aren't actually happening.
* **Werewolf Bite:** Due to his werewolf heritage, Klaus has venom which is fatal to non-Original vampires and Klaus himself is immune to werewolf venom. Klaus' venom seems to take effect much faster than a normal werewolf venom and a non-Original werewolf-vampire hybrid venom.
* **Werewolf Bite Cure:** Klaus' blood is the only cure for a normal werewolf or a non-Original werewolf-vampire hybrid venom, this ability seems to be unique only to Klaus and his daughter, Hope. However, Klaus' blood won't cure a bite from the Upgraded Original vampire.
* **Immunity to Silver:** Due to his werewolf heritage, magic bonded to silver doesn't affect Klaus. Weapons made of silver might wound him, but the wound heals at super-normal rates than regular wounds.
* **Procreation:** Sophie explained that Klaus was only able to procreate due to being the Original hybrid — a born werewolf, turned into a vampire by magic — Nature's loophole. This has since been made impossible.

His supernatural attributes aside, Klaus' greatest asset is his sharp intellect. His penchant for strategies and forming contingencies way ahead of time, despite the fact that Elijah's penchant for strategies and forming contingencies surpasses his, Klaus has outsmarted Elijah on more than one occasion, Klaus is able to discern a great deal of whatever or whoever is presented to him after only a few keen observations, he was able to figure out that Hope would be sacrificed at the cemetery because it was where the Harvest and the Reaping took place as well as the location of the ancestral witches' burial place, He was able to deduce that his mother was possessing Cassie, he also came up with a plan, to make it look like he has turned against his maternal half-siblings and Hayley, after Elijah daggered him, and after Hayley tried to take his daughter Hope away from him, in order to gain Dahlia's trust to take her down. According to Dahlia, Klaus is arguably the most intelligent of his maternal half-siblings with Elijah occasionally rivaling him.

## Weaknesses

* **Broken Neck:** Breaking an original werewolf-vampire hybrid's neck will result in temporary death, though they will revive a short time later.
* **The Cure:** If an Original werewolf-vampire hybrid takes the cure, they will revert back to being a werewolf again. Once taken, the cure prevents them from being immortal again, causing the body to reject vampire blood.
* **Desiccation:** Being completely drained of blood or the heart-stopping will cause an original werewolf-vampire hybrid to desiccate due to their vampire side, losing most of their strength and any ability to move. This process can be replicated artificially by magic.
* **Invitation:** Due to their vampire heritage, Original werewolf-vampire hybrids are unable to enter a home without an invitation.
* **Magic:** Original werewolf-vampire hybrids are susceptible to the powers of witchcraft. This is inclusive of mystical and dark objects such as the Starling Necklace, Gilbert Device, Papa Tunde's Blade, Cursed Stake.
* **Physical Trauma:** Minor physical injuries such as gunshots, stab wounds, and broken bones will cause an Original werewolf-vampire hybrid pain and also slow them down. However, this is momentary as they will heal completely within seconds. It seems physical trauma can hurt them anywhere on the body (i.e. eye gouging, drowning, etc).
* **Poison:** There are various poisons invented by Dr. Wes Maxfield and Aya, to name a few, that are capable of incapacitating or desiccating a vampire when administered. Klaus also used a poison to kill Tim that not even vampire blood could cure. It is unknown what effect, if any, any of these poisons would have if ingested by a non-Original werewolf-vampire hybrid.
* **Vervain:** Vervain prevents an Original werewolf-vampire hybrid from compelling anyone who takes it and burns them on touch. Original werewolf-vampire hybrids will heal very quickly from vervain wounds, however.
* **Wolfsbane:** When ingested, wolfsbane causes an original werewolf-vampire hybrid to become severely weak and feverish. Also, If an original werewolf-vampire hybrid's skin is exposed to wolfsbane, it will burn them. Original werewolf-vampire hybrid will heal very quickly from wolfsbane wounds, however.

## Former Weaknesses

### Original Hybrid

* **Golden White Oak Ash Dagger:** A weapon originally forged by witches and transmuted by Kol and Davina using Kemiya as a way to subdue Niklaus since he is unaffected by White Oak Ash Daggers. If dipped into the White Oak ashes and then stabbed into Klaus' heart, he will be neutralized and desiccate and will remain that way for as long as the dagger stays in place. As of *Ashes to Ashes*, the dagger was melted and destroyed by Dahlia.
* **White Oak Stake:** The White Oak Stake was the only weapon on Earth that could permanently kill Klaus. As of *When The Saints Go Marching In*, Klaus and Elijah used the last remaining stake to stake each other.

## Possibility

* **Enchanted Thorns**: Magically infused thorns created by the Hollow, that were grown in the ground laced with Marcel's blood, an Upgraded Original Vampire. A single scratch from these thorns will kill an Original; as of *Phantomesque*, the rosebush and thorns have all been destroyed.

## Relationships

* Niklaus and Marcus(Best friends, brother bond)
* Niklaus and Elijah(Half-brothers, Best friends, family)
* Klaus, Hayley and Hope (Parents and Daughter/Allies)
* Niklaus and Kol(Half-brothers, brotherly bond, close friends)
* Niklaus and Rebekah(Half-Siblings, Family Bond, Love Each Other)
* Niklaus and Marcel(Family (Father/Son Relationship), Best friends)
* Niklaus and Hayley(Sexual (One Night Stand), Family, Frenemies/Friends, Former Enemies, Allies)
* Niklaus and Camille(Close Friends, Lovers, Former Frenemies, Former Enemies, Allies)
* Niklaus and Hope(Family, Father/Daughter, Allies, Love Each Other)