Merlin

"Merlin. You are a riddle wrapped in a mystery."

- Gaius

Merlin was a young warlock and the last dragonlord in existence, the only son of Hunith and legendary dragonlord Balinor. In his twenties, Merlin was sent to Camelot by his mother to stay with Gaius, his uncle and the court physician of Camelot, to help him understand his unusually powerful magic. There he met Arthur Pendragon, the crown prince of Camelot, and was made his servant after saving him from an assassination attempt.

However, magic was not welcome in Camelot, as the then-king Uther Pendragon had any creature of magic found in the kingdom slaughtered. Merlin was forced to hide his abilities from nearly everyone. However, Merlin was told by Kilgharrah, a great dragon who had been imprisoned as an example of what happens to magical creatures, that Merlin's destiny was to ensure that Arthur survived long enough to become the king of Camelot, as he would become the greatest king in the history of Camelot.

Early Life
Merlin was born in Ealdor, a small village in the Albionian countryside. His mother is Hunith and his father is Balinor, a Dragonlord. Gaius helped Balinor escape from Uther's persecution of magic and hid him with Hunith. The two fell in love, but Uther discovered Balinor's hiding place and sent knights to arrest him. Balinor was forced to flee and leave Hunith behind. Whether she knew before or after his departure, Hunith discovered she was pregnant and later gave birth to Merlin. Merlin wouldn't see his father until many years later. Merlin was born with a strange power that enables him to slow down the movement of time, both mentally and physically, and move objects to wherever he wishes. According to The Great Dragon, Merlin's birth has been prophesied by many cultures. For example, the Druids refer to him as "Emrys" (meaning "immortal") and it is the name Mordred calls him by. (The Beginning of the End) The Dragon states that it's Merlin's destiny is to protect Arthur Pendragon and aid him in uniting the kingdoms of Albion and return magic to the land.

Arriving in Camelot
Upon his arrival in Camelot, Merlin saved Gaius from a fatal fall off a balcony in his apartments. He gave Merlin a magic spell book in order to advance his skills, but advised Merlin to hide his powers as the king, Uther Pendragon, has made all forms of magic illegal.

During his first week in Camelot, Merlin heard a voice calling him. One day, he followed the voice to the dungeons of the castle and discovered The Great Dragon. The dragon told Merlin that he is destined for great things, and that he will aid Arthur in his destiny to become king. Throughout the series, the dragon frequently gave Merlin advice, although Merlin rarely understood it at first as the advice was usually in riddles.

As well as being Gaius' dogsbody, Merlin became Arthur's manservant after he saved him from being impaled by a dagger thrown by Mary Collins. Although the pair shared an antagonistic relationship at first the two quickly began to trust each other. Merlin also befriended Guinevere, known as "Gwen", servant to Morgana, and later Morgana herself.

Early Adventures
Merlin frequently uses his magic to help others, sometimes without thinking of the consequences. When Gwen's father's life was threatened by a strange plague in Camelot Merlin used his magic to heal him; an action which subsequently lead Arthur to assume that Gwen had healed her father with witchcraft and had caused the plague in the first place. (The Mark of Nimueh). Merlin also used his magic to help a swordsman named Lancelot by using his powers to forge a false seal of nobility in order to enable him to join the Knights of Camelot. He used his powers again to enchant Lancelots lance to aid him in killing a Griffin. Lancelot discovered that Merlin had magic through this act. (Lancelot).

Merlin used his powers to save Uther from being killed by one of Edwin Muirden's beetles, despite the risk of his powers being discovered. (A Remedy to Cure All Ills). He took this risk again when his home village was attacked by raiders and he raised a wind in front of Arthur in order to help them win the fight. However his friend Will, who was fatally wounded during the battle, took the blame for the magic before he died. (The Moment of Truth).

However, Merlin's magic has also helped expose witches and warlocks with more sinister motives. He managed to expose Knight Valiant's magical snake shield during the final of the sword tournament, saving Arthur's life. (Valiant)

Merlin frequently also has to make life altering choices, often dealing with the Dragon's advice to him. The first of two notable examples occur when he has to choose whether to help Mordred escape from Camelot or to allow him to be caught and killed; Merlin ultimately chose the former when Mordred begged him to help him. (The Beginning of the End). The second is after the death of Gwen's father and Morgana plots with the rougue sorceror, Tauren, to kill Uther and the Dragon advises him to do nothing. Despite his intense dislike of Uther because of his persecution against his kind Merlin refuses to believe that it is right to kill him. He ultimately chose to save him when Gwen states that she wouldn't kill him because that would make her no better than Uther himself. (To Kill the King).

Showdown with Nimueh
After an encounter with a Questing Beast, Arthur and Merlin went on a hunt for it. Merlin killed it, but Arthur was bitten by it. Knowing that a bite from a Questing Beast meant death, Merlin went to the Dragon. The Dragon told him to travel to the Isle of the Blessed and accept the heavy price that he would have to pay to the priestess of the Old Religion he would find there, in order to save Arthur's life. (Le Morte d'Arthur).

Once at the Island, Merlin once again encountered Nimueh. He was told that to save Arthur's life, he had to sacrifice another. Merlin chose to sacrifice his own, and Nimueh gave him a vial of water from the cup of life that would revive Arthur. But the life that was taken was not Merlin's, but his mother became ill with a terrible illness that would kill her. Merlin went to the Dragon and accused him of tricking him. The Dragon said his own life was too valuable to waste, since he had to protect Arthur until he claimed the throne, at which time the Dragon would be freed. Realising that was all the Dragon ever cared about, Merlin turned his back on the Dragon, vowing to never allow him to be released for what he had done. (Le Morte d'Arthur).

Merlin intended to once again visit Nimueh to bargain his own life for his mother's, but Gaius beat him to it, and sacrificed his life for Hunith, who later recovered from the illness. Merlin blamed Nimueh for Gaius' death, and attacked her. Nimueh easily overpowered him in a magical battle, and seemingly killed him. But as she turned her back to him, Merlin rose up and and used magical lightning to strike her down. He then used the power of life and death to revive Gaius, using Nimueh's death as payment. (Le Morte d'Arthur).

Meanwhile, the Dragon appears to have a terrible rage about Merlin's desertion and angrily calls Merlin's name (which appears to have been heard by Morgana.) (Le Morte d'Arthur).

Cornelius Sigan's Return
During the time a buried treasure was unearthed, a con-artist named Cedric attempted to muscle in on Merlin's position as Arthur's manservant, which he succeeded in doing for a time. When the spirit of Cornelius Sigan was unleashed by Cedric and threatened to destroy Camelot, Merlin revoked his vow and returned to the Dragon for help. He promised to free the Dragon if he helped Merlin to defeat Sigan, and the Dragon complied by giving him the spell he needed to defeat the evil sorceror. When Sigan realized how powerful Merlin was, he offered Merlin a chance to join him, saying Arthur didn't deserve his loyalty. Although he appeared to be tempted by this offer, Merlin refused and sealed Sigan's spirit away again, using the knowledge that the Great Dragon had given him. Arthur also gave Merlin his position back after Cedric's betrayal was exposed. (The Curse of Cornelius Sigan).

Helping Morgana
When Morgana's magic began to reveal itself, she was terrified. Merlin wanted to help her, but Gaius refused to tell Morgana the truth, and the Dragon refused to help Merlin do anything that would help Morgana, saying it would be best if she never knew the full extent of her powers. But Merlin refused to abandon Morgana and advised she visit the Druids to get help with her powers. Unfortunately, Morgana's disappearance led Uther to believe she had been kidnapped and ordered for everyone who was under suspicion of having anything to do with magic to be arrested and executed unless she was returned. Merlin immediately went after Morgana and tried to convince her to return to Camelot. But an army, led by Arthur, raided the camp, forcing Merlin to use magic to protect the Druids. Morgana was found and returned to Camelot, but she was no longer afraid of her magic and thanked Merlin for what he did. Arthur, meanwhile, thought Merlin had fallen for Morgana, and advised him to not pursue his feelings for her since Uther would "have his head" for it. (The Nightmare Begins).

Rescuing Gwen
When Gwen was kidnapped by bandits, believing her to be Morgana, Merlin and Arthur set out to rescue her. During the journey, Merlin noticed Arthur's odd behavior, and managed to get Arthur to confess that he was in love with Gwen. Arthur insisted that nothing could happen between him and Gwen, namely because of his father, but Merlin said that could change when he became king and that Gwen would wait for him if she returned his feelings. Merlin and Arthur arrived at the bandits' hideout in time to save Gwen and Lancelot (who had also arrived to rescue her) from being killed. During the return home, both Merlin and Arthur noticed that Lancelot and Gwen had feelings for each other. But after Lancelot learned of Arthur's feelings for Gwen from Merlin, he decided to leave so he wouldn't come between Arthur and Gwen. (Lancelot and Guinevere).

The Witchfinder
One day, Merlin was gathering wood in the forest when he saw a pillow of smoke rising nearby. For his own entertainment, he used magic to temporarily turn the smoke into the shape of a horse. But a nearby peasant, named Catheryn, saw the magic, and, fearing for her life, informed Uther of what she had seen. Uther, determined to wipe out the last traces of magic in Camelot, sent for Aredian, a feared witchfinder. When Aredian started searching the kingdom for sorcerors, he came across a magical amulet in Merlin and Gaius' house. Merlin was publically accused of being a sorcerer, but Gaius took the blame in order to protect Merlin. (The Witchfinder).

Distressed over what he had caused, Merlin went to the Great Dragon for advise. But the Dragon, in genuine regret, couldn't help him because he didn't know how to do so on this matter. Merlin later visited Gaius in the dungeons, and both came to realise that the amulet found belonged to neither of them. Merlin then discovered that Aredian would plant false evidence of magic wherever he was called to further his own gains. Merlin then took revenge upon Aredian by exposing his treachery as well as framing him for being a sorcerer, which ultimately resulted in the witchfinder's death. Gaius was also released after he was found to be innocent. (The Witchfinder).

The Secret of Arthur's Birth
Arthur was later challenged by a mysterius woman named Morgause who, unknown to everyone except Gaius, was Morgana's half-sister. After defeating Arthur, much to Merlin's amusement, Morgause made him promise to come visit him and accept another challenge. After helping Arthur break out of Camelot, Merlin accompanied him on his quest. When they reached Morgause's castle, Arthur passed Morgause's test and, as his reward, he was allowed to speak to the spirit of his deceased mother, Ygraine. From her, Arthur and Merlin learned that she had been unable to bear a son and Uther turned to magic as a way to do so, which resulted in her death. (The Sins of the Father).

Enraged at his father, Arthur returned to Camelot and attempted to kill Uther. Merlin, meanwhile, talked to Gaius about what they had been told. Gaius confirmed that Arthur was conceived by magic, and that he never said anything because he feared what Arthur would do. Realizing that Arthur and Uther were going to kill each other, Merlin ran into the hall to stop them. While he was tempted to let Arthur kill his tyrannical father, Merlin knew Arthur would never forgive himself if he did so and convinced him that Morgause had lied to him. Uther personally thanked Merlin for what he did, ironically saying that he was a true ally in the fight against magic. (The Sins of the Father).

Freya
Merlin later rescued a druid girl named Freya from a bounty hunter. He hid her in the tunnels beneath Camelot, where he brought her food and clothing. They became very close, and even started to fall in love and kissed on two occassions. But it turned out Freya had been cursed by an ferocious monster called a Bastet for killing the witch's son in self defence. This curse turned Freya into a winged,bloodthirsty, black panther every night, meaning that Freya would kill forevermore. Freya went on a rampage twice while she was in Camelot due to this curse. Both times she killed to people. Despite this, Merlin still loved her and was even thinking about abandoning Camelot to be with her. But sadly, during one of her rampages, Freya was fatally wounded by Arthur. Merlin carried Freya to a nearby lake, where she died after telling him she would repay him someday for caring for her. (The Lady of the Lake).

Morgana's Fall
A sorcerer named Alvarr came to Camelot with the intention of stealing a crystal that can tell the past, present and future if wielded by the right person. He also enlisted Mordred into his group of bandits, knowing that Mordred could use the crystal. Merlin and Arthur later found that the crystal had been stolen, and Merlin came to believe that Morgana was behind it. He followed her, and saw that he was right. He went to the Great Dragon, who told him his reason for advising him not to trust Mordred and Morgana: an ancient prophecy spoke of an evil alliance between the two. The Dragon advised Merlin that the alliance had to be prevented, whatever the cost.

Merlin later ended up leading a number of Camelot's guards to the bandit camp. When he tried to prevent Mordred's escape, the young druid simply killed the guards that were after him, as well as telepathically telling Merlin that he wouldn't forgive or forget his actions. Morgana, meanwhile, freed Alvarr from Camelot's dungeons.

Also during this time, Merlin got hold of the crystal and saw a future where the Dragon attacked Camelot once he was freed. While Gaius told him that was merely one of many possible futures, Merlin was clearly shaken from seeing this. (The Witch's Quickening).

Morgana continued her descent into darkness when she later sided with Morgause when she returned with the Knights of Medhir and put all of Camelot to sleep in an attempt to destroy the noble kingdom. Merlin went to the Great Dragon, who informed him that Morgana was sustaining the sleeping spell with her life, and her death would end it. When Morgana and Merlin were alone, he reluctantly tricked her into drinking hemlock, an obscure form of poison. Morgause found out, and demanded Merlin tell her the poison he used, supposedly in order to save her. Merlin refused to do so unless she stopped the Knights. Morguase did so, and Merlin showed her the hemlock. Morgause then took her half-sister away before anyone could stop her, leaving Merlin believing that Morgana was dead for all time. Merlin also returned to the Dragon and finally fulfilled his oath by setting him free. (The Fires Of Idirsholas).

Release of the Great Dragon
Merlin's worries about what the Great Dragon would do once free were justified as the creature proceeded to attack Camelot and kill many innocent people. Merlin attempted to stop the Dragon himself, but his magic was ineffective. Merlin later learned that only certain people known as Dragonlords could control and kill a dragon and that all Dragonlords were killed as part of Uther's Great Purge. But, according to Gaius, one Dragonlord known as Balinor still lived by himself far away from Camelot. Before Merlin set out with Arthur to find Balinor, Gaius told him that Balinor was Merlin's father. A noticably shaken Merlin then traveled with Arthur to find Balinor and persuade him to help Camelot rid itself of the Dragon.

After Balinor healed Arthur of his wounds from a previous battle with the Dragon, Merlin revealed to him that he was his son. It was soon after this that Balinor revealed that Dragonlords pass on their powers down the generations from father to son and carves a wooden dragon for Merlin. Unfortunately, the three of them were ambushed by enemy Knights, and Balinor was fatally wounded in the ensuing battle. Merlin was heartbroken at this and Arthur deduced that Camelot was now doomed. However, when the two returned to Camelot, Merlin realized that he now has all of Balinor's powers as a Dragonlord and is able to stop the Dragon once and for all. He decided to go with Arthur into battle.

The Dragon decimated Arthur's men in this battle and Arthur himself is knocked out by a blow from the Dragon, leaving Merlin on his own to face the beast. Merlin then spoke in a language that appeared to stop the Dragon attacking him. Merlin then commanded the Dragon to leave Camelot for good and never return. The Dragon agreed to do so, but said as a parting message that he would not forget how Merlin spared him and that he was sure that they would one day meet again. Once Arthur regained consiousness, Merlin told him that Arthur had dealt the Dragon a fatal blow to avoid revealing his Dragonlord heritage. (The Last Dragonlord).

Morgana's Return
His relationship with Arthur has greatly improved, as even though he is still merely a servent, he is also an advisor to Arthur, and they still have their silly moments. Merlin makes a big deal of the effort he puts into his job, but Arthur just makes fun of him for it. Arthur still finds him the same person he thinks he is, where he "cowers in fear" and "hides behind tree's".

In the year Morgana has been missing, it is obvious to see he has been worried about finding Morgana and what she may do to him. Not only that, but his powers has also greatly increased, learning new spells. When Morgana was finally found, he began to worry more than he did, as Morgana could tell the king that he had poisoned her and he could be executed for it. However, when Morgana spoke to him, she told him that she forgives what he had done and stated that she would have done the same. This made Merlin cheer up greatly. But when he found the magic mandrake under Uther's bed, he found out that Morgana was up to no good. He followed her into the forest, but she knew that he was following her, and his cover was blown by her. It is obviously shown that no matter what danger he is in, he tries not to reveal his magic, fleeing from Morgana and Morgause when confronted, rather than fighting back. (The Tears of Uther Pendragon)

Personality
Merlin shows exceptional talent and potential in his magical abilities and his keenness to further his education despite the risks carried with using magic. He can be outspoken and foolish, as with his first meeting with Arthur. He will at times use his magical abilities for himself, as when he fights Arthur in the market place (The Dragon's Call) and to soften his workload. (Valiant) However most of the time Merlin will use his magic to help others, although this sometimes has consequences.

Merlin is naive; he appears unaware that Gwen had romantic feelings for him (or doesn't feel the same way), telling anyone who asks that they are just friends. (Lancelot) He is also very selfless; when Gwen is sentenced to death for witchcraft he confesses that it was him who cured Gwen's father with magic, despite the fact it would have cost him his life. (The Mark of Nimueh) Also, after he had been poisoned by Nimueh, he sent a light to guide Arthur out of the caves beyond the Forest of Balor and advised him not to take the Mortaeus flower despite the fact that without it he would die (The Poisoned Chalice). He later offered to give his life in return for Arthur's on several occasions (The Labyrinth of Gedref, Le Morte d'Arthur).

Kilgharrah also noted that Merlin had a habit of attempting to see good in everyone and warned him that this could prove to be his undoing. Even after Morgana turned against Camelot, Merlin pleaded with her not to help bring down the kingdom, pointing out that there were innocent people living there.

Nonetheless there is also a darker side to Merlin's personality where he will go to extreme measures to protect those he cares about, even if it means killing enemies. He has been directly responsible for the deaths of Mary Collins when she tried to kill Arthur (The Dragon's Call), Edwin Muirden when he tried to kill Gaius (A Remedy to Cure All Ills) and, indirectly, Tristan De Bois's wraith by allowing Uther to use Excalibur (however, this particular death is up for debate, as the wraith was already dead). (Excalibur) At times Merlin has been forced to actively kill people to protect others, such as Sophia and her father Aulfric (The Gates of Avalon), Tauren's henchmen (To Kill the King) and Nimueh. (Le Morte d'Arthur) He recently had to poison his close friend Morgana when he thought that her death was the only way to save the people of Camelot. (The Fires Of Idirsholas)

Hunith
Merlin is very attached to his mother Hunith. When her life was in danger, he was willing to sacrifice himself so she would live. The Great Dragon has remarked that Merlin cares more about his mother than he does about himself.

Balinor
The Dragonlord Balinor is Merlin's father. Merlin grew up with no memory of him since he and Hunith separated because Uther was hunting him. Merlin sought him out when the Great Dragon was released and attacked Camelot. While Balinor at first refused to help Camelot, he was eventually persuaded to change his mind. However, he was fatally wounded by a patrol of enemy soldiers before he could do so. Before dying, Balinor told Merlin that he was proud of him. Merlin was heartbroken when his father died.

Gaius
Merlin is very close to Gaius once saying "you are more than a father to me". His mother sent him to live with Gaius in the hopes that Gaius could help him with his powers. Although magic has been banned and Gaius respects the law, he gave Merlin a spellbook to study from in order to increase his magical skills. Gaius loves Merlin like a son and is willing to sacrifice his life for him which has been shown at least twice. One time was when he travelled to the Isle of the Blessed to save Merlin's mother Hunith at the cost of his own life (though he was saved when Merlin managed to kill the powerful sorceress Nimueh) and another time when he took blame for sorcery to protect Merlin and was almost burned at the stake as a result.

Arthur
Merlin originally had an antagonistic relationship with Arthur, seeing him as nothing more than an arrogant bully and even saying that he'd help anyone who wanted to kill him. This changed very quickly once he found out they were linked by destiny. Merlin became Arthur's manservant after saving his life for the first time. They have since become close, almost like brothers though they constantly insult and bicker with each other to cover it up. Arthur confides in Merlin, trusting him enough to let him know that he loves Gwen (knowing that if Uther found out it would place her in danger). Merlin is sympathetic but that doesn't stop him from teasing Arthur about it from time to time, Arthur regularly threatens Merlin when Merlin treats him with disrespect but Merlin remains unafraid of him and takes great pleasure in making fun of Arthur.

There are also things that impede on their relationship and make it difficult for them to be proper friends to one another. Firstly, they are separated by their differences in status. As a prince, Arthur is expected to treat those of lower class, like servants, with less respect than those of a higher class. They are not supposed to see each other as equals and so this causes problems in their friendship. There is also the issue that Merlin and Arthur have a hard time confiding in one-another. This is especially true for Merlin, who won't open up to Arthur about some of the biggest upheavals of his life (leaving Ealdor, his magic, Freya's death, his father's death, Morgana's fall), due to the fact they might raise suspicions of him. And though Arthur did once open up to Merlin about his feelings for Gwen, Arthur typically denies the idea that he has any feelings and tries to keep his emotions locked away. This causes issues in their friendship because they are unable to be honest with each other about the things that are really important to them.

Guinevere
Merlin first met Gwen when she introduced herself to him while he was in the stockades. They became fast friends quickly, bonding over a mutual dislike for Prince Arthur (although as the series went on they both grew to like and respect him). Merlin was willing to sacrifice himself for her when she was accused of being a witch, and Gwen often offers Merlin help when he has nobody else to turn to (The Witchfinder, Lancelot, Sweet Dreams) When Merlin recovered after he was thought dead, Gwen kissed him, and Merlin responded that it was "more than fine" when she apologized for it. However, Merlin is unaware that Gwen had romantic feelings for him, loving her only as a friend. Gwen, meanwhile, appears to have lost her romantic feelings for Merlin. Merlin is the only person who knows Gwen and Arthur are in love and has told Arthur that he thinks that Gwen is "very worthy of your love." He appears delighted that his closest friends in Camelot have fallen for each other, despite the difficulties.

Morgana
When Merlin first saw Morgana, Uther's ward, he appeared to be smitten with her, and they became friends when they needed to work together to cure Camelot of a magical plague and prove Gwen wasn't the one who had caused it. They appeared to grow closer when they were harboring Mordred from Uther's guards. However, their friendship appears to have taken a downturn in the aftermath of Morgana's attempt on Uther's life. Merlin has distanced himself from her, and appears to be less sympathetic towards her.

By the time Morgana's magic began to reveal itself, Merlin's attitude towards Morgana had become friendly once again. Merlin, despite being advised not to do so, helped confirm to Morgana that she had magic and that it was not something to fear. Merlin's actions during this time led Arthur to believe that he had fallen in love with Morgana.

However, Merlin later learned from the Dragon that Morgana was destined to ally with Mordred and become an enemy of Camelot. Morgana later sided with her sister Morgause to bring down Uther, and Merlin poisoned her to get Morgause to stop. While Merlin told Morgana that he was sorry, assuming she survived, she has most likely turned against him for trying to kill her and their friendship is now over.

When she returns to Camelot Morgana tries to get Merlin to forgive her for what she did- though she was and led him into a trap, so that Morgause could attempt to kill him. It should be noted however, that Morgana has not told Uther that Merlin poisoned her, even though she must have known Uther would believe her with no evidence and execute him without hesitation if he found out. Why she hasn't attempted to have Merlin executed is unknown, but it was possible that she still remembered the friendship they once shared.

Kilgharrah
Kilgharrah, also known as the Great Dragon was the one who informed Merlin of his destiny. Whenever Merlin didn't know what to do, particularly when it involved magic, he turned to the Great Dragon for advise or outright assistance. The Dragon acts as a mentor to Merlin, even though he doesn't always do as the Dragon advises him. Merlin actually considered the Dragon a friend but when he discovered the Dragon only cared about his own freedom and had tricked him into sacrificing his mother, Merlin turned his back on him, vowing to never allow him to be released.

Merlin returned to the Dragon when he needed help defeating the spirit of Cornelius Sigan. The Dragon agreed to help him, on the condition that Merlin promised to one day free him, which he agreed to do. Merlin appears to have regained some level of trust in the Dragon, and continues to seek his aid when he needs it. The Dragon appears to be quite fond of Merlin and he has proven that he can care about more than his own freedom as he felt genuinely sorry for Merlin, when he told him he was unable to help Merlin save Gaius.

Merlin later released the Great Dragon, who proceeded to lay waste to Camelot as revenge for his imprisonment and his species' near-eradication. Merlin, who inherited the powers of a Dragonlord, managed to get the Dragon under his control, but chose to spare him instead of kill him. The Dragon was grateful for Merlin's choice to not kill him, and departed after telling him he was sure they would meet again. Merlin learned Kilgharrahs true name from his father Balinor and shortly before he used his Dragonlord powers to stop the Dragon, he heard his fathers voice which told him that he and Kilgharrah were spiritual brothers.

Lancelot
Merlin first met Lancelot when the swordsman saved him from a Griffin. They became friends quickly after that. Merlin helped Lancelot join the Knights of Camelot, though Lancelot later had to leave because it was found he was not of noble birth. Lancelot later returned to fight the Griffin, and Merlin enchanted his spear to allow him to kill it. However, while this would most likely have gotten him reinstated as a knight, Lancelot declined since he knew Merlin was the one responsible for the slaying of the creature. Lancelot promised Merlin that he would not tell anyone about his magic.

Lancelot and Merlin met again when they teamed up with Arthur to rescue a kidnapped Gwen. After the rescue, Lancelot learned from Merlin that Arthur and Gwen had feelings for each other. Lancelot chose to leave once again since he didn't want to risk coming between them.

Uther
Merlin despises King Uther Pendragon because of his views of and persecution of magic. He has been tempted on several occasions to allow Uther to die when his life was in danger. However, his personal morals stopped him from letting that happen. Uther is unaware of Merlin's dislike of him and has been shown to be grateful to him for looking after Arthur.

Freya
Merlin had a very strong relationship with Freya and helped her by giving her food and safety. He promised to protect her and over a short period of time, he fell in love with her. Merlin cared about her so much that he was willing to abandon Camelot, along with Gaius, Morgana, Gwen and Arthur just so that he could be with her. But Freya, who had been cursed to become a monstrous creature called a bastet, was fatally wounded by Arthur when she was in her beast form. Merlin carried her to a nearby lake, where she died after promising to return the favor of being loved some day. Merlin was heartbroken when Freya died. Despite his grief Merlin did not blame Arthur for killing her as he still remained a faithful friend to the prince. Notably Freya's bond with Merlin was so strong that she didn't attack him while she was in her beast form, despite normally being unable to control herself.

It has been hinted she will return in a more traditional "Lady of the Lake" capacity in later seasons.

William
Merlin was close friends with William a young man from his village and William was one of the few people that knew about his magic. William sacrificed himself to save the life of Arthur Pendragon. At first Merlin and Will had opposite opinions of Arthur and Will even planned to leave Ealdor before a group of bandits arrived but changed his mind. When Will was killed by Kanen Merlin was upset. Even after Will died Merlin claimed that he was still a close friend.

Abilities
Merlin's magical abilities go far beyond that of other sorcerers. According to Gaius magic needs to be studied and perfected for many years, but Merlin's basic magic ability has been there since his birth. (The Dragon's Call) Merlin possesses considerable natural magical resilience, even surviving the force of his own killing spell when it was reflected due to the power of Tauren's mage stone. (To Kill the King)

Merlin is able to learn magic at an incredibly fast rate. Some of his powers include the ability to slow down an objects movement through time and the ability to move objects telekinetically such as when he stops an axe in mid air and turns it around on Edwin Muirden. (A Remedy to Cure All Ills et al) He does this without using incantations and can use it to enhance incantations. (The Gates of Avalon). His magic powers have greatly increased over the period of three years to the point where he can now use blasts of telekinetic energy to push enemies away either with an incatation (The Fires of Idirsholas) or nonverbally (The last dragonlord). He can also use telepathy to contact other people with magical abilities. (The Beginning of the End) as well as learn magic through telepathy. Merlin could sense powerful magic, such as the Mage Stone. (To Kill the King)

Merlin even mastered the power of life and death, which he achieved after only two encounters with it. It should be noted that the only other person known to master this power was Nimueh. (Le Morte d'Arthur) He shows great aptitude in the use of elemental spells.He can summon fire, as he did against the dark knight, who remained unaffected purely because he was already dead. He can also manipulate wind, using it to conjure a whirlwind driving away Kanen's force of brigands in the battle of Ealdor, and to help defeat the Avanc. He can also conjure lightning which he used to destroy Nimueh. He can also throw blasts of magical power, through the use of Sophia's Sidhe staff. The power of these blasts is capable of killing enemies instantly such as Aulfric and Sophia or the members of Tauren's renegade sorcerer band. He can also throw a similar blast of magcal power with his bare hands such as the one he used against Nimueh (Le Morte d'Arthur) but the sorceress effortlessly absorbed it in her bare hand.

Merlin is also capable of forming a magical shield which he used to defend himself from the Great Dragon's fire, which indicates his great magical power because Dragons are very powerful creatures. (Le Morte d'Arthur).

Though not strictly an ability, it is stated that Merlin is a Creatures of magic (with his father revealed as a Dragonlord who are brothers to Dragons it is possible because of this fact that Merlin is either partly a Creature of the Old Religion and a human making him, as many fans stated, a half-human of some kind. It is unknown of what a Dragonlord is so this debate is still going until Makers of Merlin reveals them).

The only people who know of Merlin's powers are his mother Hunith, his mentor Gaius, his deceased friend William ("The Moment of Truth") and Lancelot. Some fans feel that Arthur is aware as well but finds it difficult to accept the idea that Merlin is a sorcerer on account of his low opinion of Merlin's competence, as well as knowing what would happen to him if the king found out. (The Poisoned Chalice, The Mark of Nimueh) Morgana also appears to have some awareness of his powers, but Merlin makes a huge decision by refraining to tell her so, as she is intrigued by his keenness to help a young druid boy from execution (The Moment of Truth) and feels the need to seek him out to warn him about her fears about the future. (Le Morte d'Arthur)

Merlin currently has possession of the Sidhe staff (a wooden staff with a blue gem and inscriptions of words of life and death, capable of helping Merlin cast spells and firing blasts of magical force) and the Book of Magic, containing numerous spells Merlin has used as well as a great deal of arcane knowledge.

Merlin also had some skill with a sword which he learned from Arthur. At first he was a clumsy and unskilled swordsman but over time his swordsmanship improved to a point where he was able to defend himself against some of the men that raided his village, killing a few. (The Moment of Truth) His sword skills are shown again during the siege of Camelot where he is able to hold his own against both a skeleton warrior and Morgana, though he was disarmed twice by the latter. Merlin was disarmed on several occassions but he was also quite agile, being able to avoid being killed by Morgana even without his sword.

Beliefs in the Old Religion
It is hinted though out the series that Merlin worships some form of a polytheistic religion. (Le Morte d'Arthur) In King Cenred's kingdom of where Merlin is from, the outer regions still appear to follow the Old Religion as far as worshiping the gods. In a scene in Season 1, Merlin tells his mother that "The gods will look after me." when Merlin was talking to his mother when she was ill shortly before he went after Gaius to the Isle of the blessed. (Le Morte d'Arthur)

In the legends King Arthur, as a majority of kings within the British Isles at the time were, was Christian. Nonetheless he was clearly more tolerant towards the pagan religions as Merlin is frequently referred to as being a druid.

Legends
Merlin is based on the famous wizard Merlin Ambrosius, advisor to King Arthur in the Arthurian legends. Merlin is said to have been the child of a Demetian princess who was impregnated by a demon, specifically an incubus. Other legends state his father was a fairy, an angel or the devil. He was feared from a young age by many people who believed him to be the son of a devil due to the fact he had no known mortal father.

He is credited at having been present at Arthur's birth. He predicted Arthur's greatness and became his tutor and trusted advisor, ultimately aiding him in becoming King by helping him to win wars against the kings who opposed his succession. Merlin was enchanted and trapped in a cave after stealing all his magical knowledge by the Lady of the Lake. Other minor legends attribute his death to Morgan le Fey who, after seducing him, turned herself into an oak tree and buried him. Merlin's death was a leading cause in Arthur's ultimate downfall, as the King lacked his protector and advisor.