Characters: Merlin Others

The main character page for the series is here. For characters of the main cast, go here.

    open/close all folders 

    Characters Introduced in Season 1 

The Great Dragon: Kilgharrah (John Hurt)

"There is no right or wrong. Only what is and what isn't."

The last of the dragons who was captured during the time of the Great Purge and imprisoned in the dungeons under Camelot as an example of Uther's victory over magic. With an extensive knowledge of future events, the dragon introduces Merlin to his destiny and provides guidance over the course of his life.

  • Androcles' Lion: Inverted
  • Anti-Villain: Until his Heel-Face Turn, as he has very good reason to despise Uther.
  • Because Destiny Says So: Practically his motto.
  • Big Bad: The final episode of series two.
  • Big Brother Instinct: To Merlin. Kilgharrah's treatment of Merlin in Series 2 is best described as a come and go fondness. In Series 3, after becoming spiritual brothers, Kilgharrah burns up Serkets trying to kill Merlin, doesn't want him to leave the cave until he's fully recovered, and allows him to ride him despite the fact that the series 3 finale shows he detests being used as a horse. He still occasionally treats him like an idiot, but given that we have only one talking dragon to draw references from, this could have been a normal big brother relationship among dragons.
  • Big Damn Heroes: Comes to Merlin's rescue in The Tears of Uther Pendragon Part I, then again in The Darkest Hour Part II.
  • Breath Weapon: He shoots fire from his mouth, mostly as a defence weapon.
  • Characterization Marches On: He started out as rather flat character giving Merlin cryptic hints in riddles to defeat the monster of the week. When Mordred showed up around episode 8, he became a more darker and complex character.
  • Demoted to Extra: In Series 5. With good reason, as he is dying of old age.
  • Disproportionate Retribution: His attack on Camelot. Uther slaughtered his entire kind, and in response he attempts to raze the city to the ground, leaving Uther untouched as his subjects die. Well, it's the exact same thing that Uther did to him, but he was still killing innocents.
  • Eccentric Mentor: For the first few episodes he would always talk to Merlin in riddles.
  • Fan Nickname: Slash Dragon.
  • Figure It Out Yourself: In the first few episodes of Series One, when Merlin came to him for help, the Dragon would often tell the answer in a riddle, that Merlin would have to figure out.
  • Giant Flyer
  • Heel-Face Turn: When Merlin spares him despite his rampage on Camelot, the Dragon becomes a nicer though still cynical person.
  • It Has Been an Honor: In The Darkest Hour Part II this is his reaction to Merlin stating that he’s going to sacrifice himself to seal off the spirit world. You can clearly hear the fondness and grief in his voice at the notion of Merlin dying, but it’s also obvious that Kilgharrah is incredibly proud of Merlin’s conviction and good nature.
  • It's All About Me: Originally his main motivation for helping Merlin was so that he would be free from his imprisonment. Later he developed a genuine fondness for the warlock.
  • Karma Houdini: He was never really punished for his rampage on Camelot: merely banished on pain of death by Merlin.
  • Last of His Kind: Not anymore due to the hatching of Aithusa.
  • Manipulative Bastard
  • Morally Ambiguous Mentor
  • Mr. Exposition: Shares this trope with Gaius
  • No Name Given: For the first two series at least. In the last episode of series 2, he was identified as "Kilgharrah" for the first time.
  • Not So Omniscient After All: Remember all his prophecies about how Arthur would legalize magic and unite Albion and rule over the Golden Age, with the white dragon Aithusa as a symbol of the world that he and Merlin would build together? Never happened.
  • Omniscient Morality License: He's advised/ordered Merlin to do some incredibly dodgy stuff, including letting a child die and killing a terrified woman.
  • Only One Name
  • Our Dragons Are Different: Can talk perform magic, have incredibly long life spans and be controlled by Dragonlords.
  • Really 700 Years Old: He's at least a thousand years old, and claims to have seen civilizations rise and fall. Although he's about to die of old age when the series end.
  • Sapient Steed: Whenever Merlin hitches a ride.
  • Secretly Dying: Although the secret's out in The Kindness of Strangers.
  • Seen It All: There's very little he can't give Merlin a spell or solution for. As long as the threat or problem is magical in nature, personal problems not so much. Justified in that he's at least a thousand years old.
  • Treacherous Advisor: Betrays Merlin twice, both by having him almost kill his mom, and then attacking Camelot after he was freed.
  • What the Hell, Hero?: Merlin calls him out on some of his morally questionable decisions.
    • In The Crystal Cave he’s enraged at the fact that Merlin forces him to divulge a spell to heal Morgana by using his Dragonlord powers, considering it a serious breach of trust.
  • Would Hurt a Child: At least by omission: he tries to prevent Merlin from saving Mordred, when Mordred was a little kid and still very innocent.

Nimueh (Michelle Ryan)

"I have watched so many people I love die at your hands, Uther Pendragon. Now it is your turn."

The sorceress who cast the spell that allowed Uther and Ygraine to conceive Arthur. After Ygraine died in childbirth as per the conditions of the magic, it served as a catalyst for Uther's hatred of magic and the massacre that followed. Throughout the first season, Nimueh works against Uther from a distance in order to undermine his rule. She appeared in The Mark of Nimueh, The Poisoned Chalice, Excalibur and Le Mort d'Arthur.

Lancelot (Santiago Cabrera)

"I would die for you one hundred times over. Live for me, or everything that I am has been for nothing."

A commoner who desires to become a knight of Camelot. He shares a brief romance with Gwen and becomes one of Merlin's long-term Secret Keepers. He appeared in the first, second, third and fourth series.

Mordred (Asa Butterfield/Alexander Vlahos)

"My name is Mordred."

Mordred is a young Druid boy who Morgana grows instantly attached to. According to the Great Dragon, Mordred will one day kill Arthur. Merlin's desire to help Mordred becomes heavily strained because of this. Also, another prophecy states that Mordred and Morgana will be united in evil. He appears in the first, second and fifth series.

  • Adorkable: When the older knights tease him.
  • Ambiguously Evil
  • Anti-Villain
  • Badass Cape: When Mordred became a knight.
  • Future Badass: Mordred goes from a small, unknown Druid boy from a small village, to a knight of Camelot under King Arthur's rule. Not only that, but in the future, he is the ultimate demise of King Arthur.
  • Hidden Badass
  • Because You Were Nice to Me: This is most likely the cause of Mordred's loyalty towards Morgana.
    • He also wants to save Arthur 'cause Arthur saved him when he was a child.
  • Beware the Quiet Ones: When Mordred was a child, he didn't talk much, if ever. But he smashed a mirror with his powers when he was angry and upset over one of his kind being executed. That was a clear sign to not mess with this kid.
  • Big Bad: Eventually.
  • Big Brother Worship: Towards Arthur. Ironic, considering Mordred is his son in the legends.
    • Considering that Mordred was originally just another foe of Arthur's in the earliest tellings (who was upgraded to major villain and Arthur's incestuous spawn in later tellings - Le Morte D'Arthur by Sir Thomas Mallory can probably be credited for this), one can argue that this is Mordred's character being brother full-circle.
  • Broken Pedestal: All the time. He idolized Merlin, who's like the magic world's greatest rockstar, and he keeps trying to kill him for no reason. He has a special bond with Morgana, who was sweet and caring, and she became a vengeful woman driven by hate. He worships Arthur, and he has his beloved hanged. He considers the knights friends, and they let him down when he needed them the most.
  • The Bus Came Back: He's been recast for series five.
  • Child Mage
  • Child Prodigy
  • Children Forced To Kill
  • Creepy Blue Eyes: His unblinking gray-blue eyes when he is a child can be quite unsettling.
  • Creepy Child
  • Cute Bruiser: As a child, he was a Druid with great strength and power.
  • Cute Warlock: When he was a young child.
  • Dark and Troubled Past: His father was killed; he was injured and sentenced to death; he saw his village destroyed; he was hunted down and forced to kill and after the Time Skip he said he learned to keep a low profile to not be burned to the stake or sold out. Also, considering how clueless he is about the Old Religion, he probably didn't meet other sorcerers after leaving Alvarr.
  • Deliberately Cute Child
  • Designated Villain: invoked He is prophesied to be the one who will kill Arthur. When he was still a child and apparently did no harm, the Great Dragon bluntly told Merlin to leave him to his death. Later Merlin himself adopts the belief that Mordred will be up to no good.
  • The Dreaded: To Merlin, who believes that he'll one day kill Arthur. Which he does, but only because the entire situation was a twisted Self-Fulfilling Prophecy.
  • Druid Boy
  • Enfante Terrible
  • Evil Sorcerer: A very young one.
  • Foil: To Merlin. They are both born having powerful magic with grand destinies. Both serve Arthur in hope to find acceptance. Their love interests die by Arthur's hand. Merlin forgives Arthur for failing to live up to expectation. Mordred does not.
  • Foreshadowing: He will someday kill Arthur.
    • Right now there is a proper vision of him killing/wounding Arthur.
  • Freudian Excuse: Mordred's storyline starts with him seriously injured by Camelot's guards and his father executed by Uther; then he is imprisoned and sentenced to death. He returned to his people only to have his mentor killed, his village destroyed by Arthur and he's forced to leave Morgana to save himself. After that he's openly hostile to the Pendragons, plus his caretaker is Alvarr; then Merlin, someone he considers sort of an ally, sides with Camelot instead. Three episodes, and he already has a hell of a Freudian Excuse for the day he will be the Big Bad.
    • And now the girl he loved gets killed on Arthur's orders.
  • From Nobody to Nightmare: In his first appearance he was just a helpless kid. With each subsequent episode he displays considerably more power, until he returns as an adult, and is one of the few villains who not only unnerves Merlin, but genuinely terrifies him.
  • Glass-Shattering Sound: Mordred's screaming is so powerful that it has literally broken and shattered a glass mirror.
  • Heartwarming Orphan: Subverted. He did have traces of it at the start, but at the same time he was also a Creepy Child from Day One.
  • Heel-Face Revolving Door: Though he's supposedly destined to kill Arthur, his loyalties are hard to determine, especially when he turns on Morgana and stabs her In the Back, saving Arthur's life in the process.
  • Hey, It's That Guy!: As a child he was Bruno and Norman. As an adult, he's Dorian Gray.
  • Hidden Agenda Villain: No one is quite sure what he's up to (if anything), least of all Merlin.
  • I Know Your True Name: He constantly (but telepathically) refers to Merlin as "Emrys"; in fact, he's the first person in the show to mention that name to Merlin.
  • In the Hood: Often wore hoods both as a child and as an adult.
  • Innocent Blue Eyes: When he first appears.
  • Innocence Lost: Probably because destiny says so: he has to kill Arthur, so a lot happens to make him change from a scared little boy to a vindictive kid.
  • Kick the Son of a Bitch: Whenever Mordred kills knights. It's sociopathic and Troubling Unchildlike Behavior, especially for a kid that was raised by pacifists, but the people he was killing were intent on either killing a boy who was, from their perspective, a defenseless child, or dragging him off to Uther, who has had children drowned in the past.
  • Killed Off for Real
  • Killer Rabbit: As a child, he was cute, adorable but very creepy and dangerous.
  • Little Mister Badass: As demonstrated when he kicked the asses of a bunch of Camelot's guards with his magic in 2x03 and 2x11.
  • Magic Is Evil
  • Magic Knight: In 5x01, we see a prophetic vision of Mordred on the battlefield, wearing chainmail and wielding a BFS.
  • Make Me Wanna Shout: When his father in Series 1 and girlfriend in Series 5 are killed, his scream shatters a mirror in the former case and breaks the prison door in the latter.
  • My Significance Sense Is Tingling: He seems able to sense Merlin/Emrys' presence. He can also sense the deaths of his father and girlfriend.
  • Mysterious Past: Particularly in the Time Skips. How'd he go from Iseldir's care to Aglaine's care to Alvarr's care to working with bandits?
  • Names to Run Away from Really Fast: Mordred
  • Now Let Me Carry You: Mordred is glad to take care of an injured Morgana, in thanks for her previously caring for him.
  • Not So Different: To Merlin. Both were born having powerful magic and have to hide their talents to non-magical people. Lampshaded by Mordred himself.
    Mordred: We are not so different. You and I.
  • Only One Name
  • Oracular Urchin: It would seem so, as Alvarr says Mordred is the only one powerful enough to use the Crystal of Neahtid. Considering even Merlin had trouble with it, this would suggest great power indeed.
  • The Other Darrin: He's been recast as 23 year old Alexander Vlahos.
  • Parental Abandonment: His father died and his mother was never mentioned in the first place.
  • Parental Substitute: Not very lucky with them: the first one was killed by Camelot's knights and the second was a Manipulative Bastard who wants to use him and Morgana to bring Uther down.
  • Puppy-Dog Eyes: Oddly, teen-Mordred seems a puppy who's trying to be loved much more than child-Mordred.
  • Put on a Bus: Unfortunately, Asa Butterfield (Mordred) won't be in Season 3 and 4 because of scheduled filming conflicts. He ran off into the forest at the end of season two and hasn't been seen since.
  • Reformed, but Rejected: Seems the case with Merlin: since his returning Mordred has done anything evil or wrong, he actually saved Arthur life twice, one almost dying in the process, but Merlin doesn't trust him and basically wants him dead.
  • Rule of Three: Has appeared three times in the first two seasons.
    • With the recasting he is in three seasons.
  • The Runaway
  • Scarf Of Ass Kicking: And it's bigger than Merlin's.
  • Schiff One-Liner/Wham Line: 1x08 when he reveals his identity — the above quote.
  • The Sociopath: A budding example.
  • Sonic Scream
  • Start of Darkness: In 2x03 Mordred is forced to kill some soldiers in self-defense, but shows absolutely no remorse.
  • The Team Wannabe: Looks like Mordred really wants to be part of something, and he's trying really hard to gain Merlin's trust and friendship.
  • Telepathy: Has contacted several characters — including Merlin and Morgana — with his thoughts.
  • This Is Unforgivable!: When Merlin attempts to prevent Mordred from escaping the Camelot knights in 2x11, Mordred ends up killing the knights and warning Merlin telepathically that he will not forgive Merlin nor will he forget this betrayal.
    • Looks like he did forgive him, though: some things he said seems to imply that Mordred considers his old attitude a result of being a child, not fully understanding what was going on and all the implications.
      • Harming his beloved is an entirely different thing.
  • Time-Shifted Actor: Thanks to the Time Skips between seasons, it's been seven years since Mordred was last seen, thus allowing Alexander Vlahos to step in as an older version of the same character.
  • Troubling Unchildlike Behavior: Merlin is shocked when he witnesses Mordred killing several knights with a Sonic Scream - even worse is the kid's reaction - he looks around at the bodies with a small smile and casually runs away.
  • The Voiceless: Played straight in 1x08, where Morgana start to wonder if he's too afraid to speak or he can't. In later episodes Mordred is more verbal, but still seems to prefer telepathy over voice.
  • Warlock Species: Mordred is a Druid with magical abilities.
  • Wild Card: Season 5. Stabs Morgana in the back, joins the knights, shows kindness to the prisoners, doesn't use his magic, and doesn't reveal Merlin's identity to either Arthur or Morgana. The show's been doing a very good job not letting us know if he's heel or face until his Face-Heel Turn in 2x11.
  • Wise Beyond Their Years: Or so it would seem.
  • You Are Not Alone: He tries this on Merlin and Morgana in 5x02, only to be cold-shouldered by Merlin and on the receiving end of a crazy rant from Morgana. One gets the sense that he chose Arthur not just because I Owe Him My Life but because he doesn't fully trust the only other two magic-users on the show.

    Characters Introduced in Season 2 

Sir Leon (Rupert Young)

A Knight of Camelot seen throughout series 2 and made a semi-regular in the third, fourth and fifth series.

Morgause (Emilia Fox)

"Arthur Pendragon, a great destiny awaits you. The battle for your soul is about to begin."

A mysterious sorceress who has a connection to Morgana, Morgause desires the doom of Uther and Camelot. She appears in the second, third and fourth series.

Freya (Laura Donnelly)

"You already saved me. You made me feel loved."

Freya is a young Druid woman with a dark secret who Merlin protects from captivity. They develop a strong bond in the process. Freya becomes Merlin's first love. She appears in The Lady of the Lake, The Coming of Arthur Part II and The Diamond of the Day Part II. note 

    Characters Introduced in Season 3 

Cenred (Tom Ellis)

The ruler of the rivaling kingdom of Cenred (named after himself), Cenred seeks the downfall of Uther and Camelot by becoming an accomplice of Morgause's. He appears in The Tears of Uther Pendragon Part I and II, The Castle of Fyrien and The Coming of Arthur Part I.

Gwaine (Eoin Macken)

"If there's one thing that I learned from my father's life is that titles don't mean anything. It's what's inside that counts".

A man who saves Arthur during a brawl at a town tavern, Gwaine is given hospitality at Camelot until his injuries heal. He resents nobles and is secretly the son of a knight. He helps Merlin in protecting Arthur from danger during the melee. He is a future Knight of the Round Table. He appears in the third, fourth and fifth series.

Elyan (Adetomiwa Edun)

Gwen: "He's just one of those people, never settled down, never thinks about the future, just follows his heart wherever it leads him".

Guinevere's estranged brother and only sibling. He appears in the third, fourth and fifth series.

Percival (Tom Hopper)

"Your enemies are my enemies."

A warrior who arrives with Lancelot in order to help Arthur and his loyalists take back Camelot. Having showed up in the very last episode of the third season, we learn very little about him. He appeared in the third, fourth and fifth series.

    Characters Introduced in Season 4 

Lord Agravaine de Bois (Nathaniel Parker)

Gaius: "I suspect he's not as virtuous as he seems."

Arthur's uncle on his mother's side, Agravaine has been helping his nephew run the kingdom during Uther's sickness. It soon becomes clear that he's not a man to be trusted. He appears only in the fourth series.

The White Dragon: Aithusa

"The white dragon bodes well for Albion, for you and Arthur, and for the land you will build together."

A white baby dragon that Merlin hatches from a long-dormant egg, and said to be a good omen for the coming Golden Age of Arthur's reign. The events of the series four finale throw this into some doubt. He appears in the fourth and fifth series.

Helios (Terence Maynard)

"Were you expecting something different? Perhaps campfires and raw meat."

A womanizing warlord that Morgana enlists in her crusade against Camelot and whose army attacks it at the end of series four. He appears in The Hunter's Heart and The Sword in the Stone Part I and II.

    Minor Characters 

Geoffrey of Monmouth (Michael Cronin)

Camelot's court genealogist, though he also works as a librarian, is a member of the royal council, and officiates over weddings and coronations. He appeared in the first four series, but not the fifth.

Parents of the Main Cast

Hunith (Caroline Faber)

"It is every mother's fate to think her child is special, and yet I would give my life that Merlin were not so."

Merlin's mother, who sends her only son to Camelot at the start of the series in the hopes that he will learn to control his magical abilities under the guidance of her (much) older brother Gaius. She appears in The Dragon's Call, The Moment of Truth, Le Mort d'Arthur and The Sword in the Stone Part I.

  • Action Mom
  • Back for the Finale: In series four.
  • Berserk Button: To Merlin. Nothing gets him more riled or dangerous than if someone threatens his mother.
  • Bring Help Back: In 1x10.
  • Give Him a Normal Life: Inverted. Though she wants this for Merlin, she knows that he's exceptionally gifted. Rather than hide him away in Ealdor she sends him to Camelot to get tutelage for his abilities.
  • Good Parent
  • Let's Get Dangerous: When her village is attacked by bandits, she insists that she's going to fight or die trying.
  • Mama Bear: Towards Merlin of course. She's highly protective of him.
  • The Ojou: Hunith is very kind, gentle, polite, maternal and soft spoken, despite not coming from wealth.
  • Only One Name
  • Open-Minded Parent
  • Parent In Distress: Hunith becomes gravely ill at the end of season one after Merlin makes a deal with Nimueh to save Arthur's life. Merlin does everything in his power to save his mother by sacrificing himself to Nimueh again.
  • The Pollyanna: Hunith has a very hopeful and optimistic nature. Seems that Merlin inherited that trait.
  • Separated-at-Birth Casting: It's easy enough to buy her as Merlin's mother.
  • Shipper on Deck: She seems to be a huge Arthur/Merlin shipper.
  • So Proud of You
  • Team Mom: She appears to be maternal to everyone, including Arthur and Gwen.
  • What Happened to the Mouse?: On two occasions she disappears abruptly from the episode; first when she falls sick (we're told that she recovers, but it happens off-screen) and second when mercenaries attack Ealdor at the end of series four (Merlin, Arthur and Gwen lead the attackers into the forest, and we're just left to assume that they left Hunith and the other villagers alone).

Queen Ygraine Pendragon (Alice Patten)

"He sacrificed my life so the Pendragon dynasty could continue. It makes you no less my son, nor me any less proud of you."

Arthur's mother, Agravaine's sister, the late wife of Uther, and the former Queen of Camelot. She appeared in Sins of the Father and The Tears of Uther Pendragon Part I and II.

Balinor (John Lynch)

"You don't choose to become a Dragonlord. It's not something you're taught. It's a sacred gift. For thousands of years it's been handed down from father to son."

Merlin's father and the last of the Dragonlords. In his youth he helped subdue the Great Dragon before Uther betrayed him and tried to have him executed. With Gaius's help he escaped to Ealdor where he was taken in by Hunith, only for Uther's men pursue him into the wilderness. He appeared in The Last Dragonlord and The Diamond of the Day Part I.

Tom (David Durham)

"We're on the up now. Things are going to be different."

Guinevere's father, the local blacksmith. He appeared in The Mark of Nimueh and To Kill The King.


Morgana and Morgause's mother. Very little is known about her beyond the fact that she was married to Gorlois and had an affair with King Uther (which resulted in Morgana).

Kings, Queens, Princesses, and Other Assorted Royals

King Bayard (Clive Russell)

The King of Mercia. He is falsely accused of trying to poison Arthur as part of an Evil Plan devised by Nimueh. He appeared in The Poisoned Chalice.

King Odin (Fintan McKeown)

"I want you to kill the man who murdered my son. I want you to kill Arthur Pendragon."

The King of a land refered to only as "Odin's Kingdom". He has a vendetta against Arthur after his son was killed in a duel. He appeared in The Once And Future Queen and Another's Sorrow.

  • The Bus Came Back: In one of the most surprising displays of Continuity this show has ever done, Odin returns forty-one episodes after he was last seen to finish off a Story Arc that had lay dormant for three seasons.
  • Cycle of Revenge: Arthur attempts to stop this when Uther demands retribution from Odin after his attempt on Arthur's life. It doesn't appeared to have worked.
  • Duel to the Death: How his son was killed.
  • Feuding Families: With the Pendragons.
  • It's Personal: Subverted in that it's the villain who wants revenge on the hero.
  • Misplaced Retribution: Perhaps. We know very little about what really happened between Arthur and Odin's son, save that the latter ended up dead at the former's hands.
  • Revenge Myopia: Odin wants Arthur dead because he killed his son; but Arthur claims that he was just defending himself.
  • Small Role, Big Impact: He's been on-screen for about two minutes back in series 2. In series 4 he sends an assassin to kill Arthur, who ends up fatally wounding Uther instead. He's also been mentioned frequently throughout the series.
    • He returns in series 5 for an expanded role.
  • Sympathetic Murderer
  • You Killed My Father: Inverted. This is a father seeking revenge for his son.

King Alined (David Schofield)

"If Olaf kills Arthur, then Uther will start a war. If Arthur kills Olaf, then his men will start a war. We cannot lose!"

The ruler of one of the Five Kingdoms. He comes to Camelot as part of a Peace Conference, determined to stir up enough trouble to drive the kingdoms back into war. He appeared in Sweet Dreams.

King Olaf (Mark Lewis Jones)

Alined: "Olaf is the most overprotective buffoon I've ever met. It would surely end the peace talks if anyone were to lay a finger on his daughter."

The ruler of one of the Five Kingdoms and father to Lady Vivian. He unknowingly plays into the hands of King Alined when his protectiveness of Vivian leads him to challenge Arthur to a duel, having been led to believe she's been seduced by him. He appeared in Sweet Dreams.

Lady Vivian (Georgia Moffett)

"I am not most of your guests."

Lady Vivian is the bratty daughter of King Olaf. Accompanying him to the peace talks hosted at Camelot, she becomes the target of a love spell in an attempt to disrupt the proceedings by playing on the emotions of her Overprotective Dad. She appeared in Sweet Dreams.

Princess Elena (Georgia King)

"I'm not the perfect princess, am I?"

The Princess of Gawant and daughter of Lord Godwyn. Unbeknownst to her, she was possessed by a Sidhe fairy whilst just a baby, causing her to grow up with a variety of embarrassing traits and peculiarities. She appeared in The Changeling.

Lord Godwyn (Simon Williams)

"Maybe it's time things changed."

The ruler of Gawant and father of Princess Elena. Due to his old friendship with Uther, the two have organised an Arranged Marriage between their children. He appeared in The Changeling.

King Caerleon (Steven Hartley)

"You did not choose anything, boy. It is I who choose to die, and I alone".

The King of Caerleon. After being caught trespassing in Camelot's territory he is caught and beheaded by Arthur. He appeared in His Father's Son.

Queen Annis (Lindsay Duncan)

"There is something about you Arthur Pendragon. Something that gives me hope for us all."

The Queen of Caerleon. After her husband is executed at Arthur's hands, she is goaded by Morgana into seeking revenge. She appeared in His Father's Son and Arthur's Bane Part I.

Princess Mithian (Janet Montgomery)

"I would give up my own kingdom to be so loved."

The Princess of Nemeth. She comes to Camelot in order to wed Arthur as part of a peace settlement between their kingdoms. Though she finds herself genuinely falling for Arthur, he breaks off the engagement on realizing that his heart still lies with Guinevere. She appeared in The Hunter's Heart and Another's Sorrow.

King Rodor (James Fox)

"Don't look so surprised. I commanded an army in my time."

The King of Nemeth and father of Princess Mithian. When his kingdom is invaded by King Odin, he's held hostage and used as bait to lure Arthur into a trap. He appeared in Another's Sorrow.

    Other Villains 

Mary Collins (Eve Myles)

"I promise you, before these celebrations are over, you will share my tears."

A witch whose son is executed at Uther's behest. She decides to take her revenge by assassinating Prince Arthur, disguising herself as a singer due to arrive in Camelot. She appeared in The Dragon's Call.


A knight who enters a tournament at Camelot with a magical shield that will ensure his victory.

Edwin Muirden (Julian Rhind-Tutt)

"I want my face to be the last face you ever see. You took my childhood from me. And now finally, I take my parents' revenge."

A physician whose parents were burnt at the stake at Uther's command and who returns to Camelot years later to seek his revenge. He appeared in A Remedy To Cure All Ills.

Sophia (Holliday Grainger)

"For a moment, I felt what it would be like to die a mortal death."

The daughter of a renegade Sidhe, Sophia is desperate to gain immortality and return to Avalon by offering up Arthur as a human sacrifice to her people. She appeared in The Gates Of Avalon.

Aulfic (Kenneth Cranham)

"It is my fate to live a mortal life."

A member of the Sidhe who was exiled from Avalon, Aulfric promises his people the blood of Prince Arthur if they agree to return immortality to his daughter. He appeared in The Gates Of Avalon.

Sidhe Elder (Michael Jenn)

The ruler of the Sidhe. Appeared in The Gates Of Avalon and The Changeling.

Tristan de Bois (Rick English/Christopher Fairbank)

"Who will take up my challenge?"

Queen Ygraine's brother, who blamed Uther for her death and challenged him to a duel. Though he was killed, he swore with his dying breath that he would return to Camelot to have his revenge. Years later, Nimueh resurrects him so that he might fulfil this vow. He appeared in Excalibur.

Catrina (Sarah Parish)

"Uther's so stupid, so blinded by pretty things. Already he falls for me. It's only a matter of time before he is completely under my control."

A hideous troll that takes on the visage of an old friend of Uther in order to seduce him. On becoming Queen of Camelot, she uses her newfound power to accumulate her deepest desires: riches and dung. She appeared in Beauty and the Beast Part I and II.

Aredian (Charles Dance)

"It's all around us, the foul stench of sorcery. It's infected your great city like a contagion."

A Witch Finder, who comes to Camelot at Uther's invitation in order to root out any witches or wizards in the kingdom. Due to Charles Dance's performance, he ended up being one of the show's most memorable One Shot Villains. He appeared in The Witchfinder.

Alvarr (Joseph Mawle)

"To be an enemy of Camelot is no crime."

The leader of a group of Druids that desires the downfall of Uther and who manipulates Morgana (and Mordred) into joining his cause. He appeared in The Witch's Quickening.

Julius Borden (James Callis)

An old pupil of Gaius who left his tutelage under murky circumstances. Since then, he gradually collected the three pieces of a golden triskelion that is said to open the Tomb of Askanar where the final dragon egg was hidden centuries ago.

Lamia (Charlenne McKenna)

Gaius: "They could control the mind of a man, suck the life from him with a single embrace."

A creature of dark magic, created by the High Priestesses of the Old Religion as a weapon against the Ancient Kings by mingling the blood of a girl and a serpent together. She appeared in Lamia.

Lancelot du Lac (Santiago Cabrera)

A shade resurrected from the dead by Morgana in order to tear Arthur and Guinevere apart. Though it bears an exact resemblance to Lancelot, his will is entirely controlled by Morgana. Appeared in Lancelot du Lac.

Ruadan (Liam Cunningham)

A powerful druid who allies himself with Morgana in order to topple the Pendragon regime, informing her of a mysterious entity called the Diamir that holds the key to all knowledge.

Kara (Alexandra Dowling)

"It is not a crime to fight for your freedom. It is not a crime to fight for the right to be who you are."

A druid girl who joins forces with Morgana in order to destroy Camelot and free her people. After trying to assassinate Arthur she is sentenced to death, but her history with Mordred complicates matters. She appeared in The Drawing of the Dark.


A devious woman (yeah, another one) who is sent by Morgana to infiltrate Camelot as a spy, using her feminine wiles and a show of helplessness to gather information. She appeared in The Diamond of the Day Part I and II.

    Other Allies 

Will (Joe Dempsie)

"Are you telling me you'd rather keep your magic a secret for Arthur's sake than use it to protect your friends and family?"

Merlin's Childhood Friend who remains in Ealdor after Merlin travels to Camelot. He participates in the battle against the local warlord Kanen to defend his home. He appeared in The Moment of Truth.

Alice (Pauline Collins)

Gaius: "Alice is the kindest and most compassionate person I've ever known."

A gifted healer who supplements her natural talent with magic. She and Gaius were once engaged to be married before the Great Purge forced her to flee Camelot. She appeared in Love In The Time of Dragons.

Gilli (Harry Melling)

"I'm not going to apologize for who I am!"

A young man with a Ring of Power who arrives in Camelot in search of honour and glory. After befriending Merlin, he goes through a surprisingly complex Story Arc over the course of his single episode appearance. He appeared in The Sorcerer's Shadow.

Alator (Gary Lewis)

A High Priest of the Catha, a sect of wizards who specialize in mind control and psychic torture. Alator is hired by Morgana to seek out the identity of the mysterious "Emrys." He appeared in The Secret Sharer and The Kindness of Strangers.

Tristan and Isolde (Ben Daniels and Miranda Raison)

"Caught? Tristan and Isolde? I don't think so. We're too quick and too smart for the halfwit king in Camelot."

A pair of smugglers (and lovers) who don't think highly of Camelot or its King, but who decide to throw in their lot with Arthur after he and Merlin save Isolde's life. They appeared in The Sword in the Stone Part I and II.