The Mystic Knights:
Rohan, Mystic Knight of Fire (Lochlann O'Mearain)
An orphan raised as Cathbad's apprentice before learning he was the long-awaited Chosen One Draganta, making him the leader by default. He is the only one who can control Pyre, the Dragon of Dare, whom he summons with the Dragon's Breath Dagger. Rohan revealed in one episode his heart's desire is to know who and where his real family is. Be Careful What You Wish For...
- Element: Fire
- Mystic Weapon: The Sword of Kells, a sword that shoots flames
- Big Good: Once he's revealed to be Draganta. It gets deconstructed at times, as the other Knights are miffed about being overshadowed and Rohan feels the pressure of fulfilling his destiny.
- Four-Temperament Ensemble: Choleric (fire).
- Hidden Backup Prince: Since he's Maeve's son after all.
- Law of Chromatic Superiority: His "Battle Fury" armor.
- Playing with Fire
- Standardized Leader
- Royals Who Actually Do Something: Though of he course he doesn't realize he is this until near the end of the series.
- Took a Level in Badass: The Battle Fury armor allowed him to fight off Lugad, who was previously able to overcome all the Knights at once.
- Warrior Prince
Angus, Mystic Knight of Earth (Vincent Walsh)
Rohan's best friend and roommate. The two grew up on the streets together, and Angus was — and still is — the troublemaker. Rohan trusts him unquestionably (the power of their friendship was once enough to free Rohan from a spell), despite his reputation as a trickster and pickpocket. His skills in that area frequently come in handy.
- Element: Earth
- Mystic Weapon: Terra Mace, a mace that shoots large boulders and creates earthquakes
- Dishing Out Dirt
- The Everyman: especially since he turns out to be the only one of the knights not to be royalty in any way/
- Four-Temperament Ensemble: Melancholic (earth).
- Heterosexual Life-Partners: With Rohan.
- The Lancer
- Lovable Rogue: He'd like to think so; in reality, not so much.
- Plucky Comic Relief: Always has a joke, or is the butt of one.
- Reformed Criminal
- Toxic Friend Influence: Cathbad thinks Angus is this to Rohan. He might have a point at times.
Deirdre, Mystic Knight of Air (Lisa Dwan)
The Rebellious Princess of Kells, who finds herself a habitual blackmail tool. In the finale, it took all of one minute for Maeve to grab her and the knights to sulkily abandon their weapons as if it had become routine, which it had. Fortunately, no one in her world seemed to notice, any more than they were bothered by her tendency to pull rank whenever she wanted to get her way. ("That's a royal command.")
- Element: Air
- Mystic Weapon: Whirlwind Crossbow, a crossbow that shoots strong blasts of air
- Blow You Away
- The Chick
- Cute Bruiser
- Faux Action Girl
- Fiery Redhead: She can get even more choleric than Rohan.
- Four-Temperament Ensemble: Sanguine (air).
- Huge Guy, Tiny Girl: Compared to the rest of The Team, she's rather short.
- Lady Legionnaire Wear
- Lady of War
- Mini Dress Of Power: She wears an armored version when she transforms.
- Nude-Colored Clothes: She is wearing a pair of skin-toned leggings under her skirt when transformed for obvious reasons. Her action figure, on the other hand...
- What makes this notable is that, in civilian garb, she was bare legged, despite wearing an equally revealing skirt.
- Royals Who Actually Do Something
- The Smurfette Principle: Within the Knights.
Ivar, Mystic Knight of Water (Justin Pierre)
A prince who was passing through Kells on the hunt for a thief who stole a priceless chalice from his kingdom. He eventually learned that very chalice was located in Maeve's throne room, since it was Midar's portal between Earth and the Dark Fairy Realm. His dedication to retrieving the chalice almost matched his uncanny ability to track anything and everything.
- Element: Water
- Mystic Weapon: Barbed Trident, a trident that shoots streams of blue electricity.
- Four-Temperament Ensemble: Phlegmatic (water).
- It's Personal: Retrieving the chalice. It gets even more personal when he learns it was Torc who stole it.
- Making a Splash
- The Quiet One
- Royals Who Actually Do Something: Like Deirdre he comes form a royal family. Unlike Deirdre, he had to travel to another country in order to retrieve a magical item taken from his people. Now that's dedicated royalty.
- The Smart Guy
- The Stoic
- Token Minority
- Wise Beyond Their Years
Garrett, Mystic Knight of the Forest
A Sixth Ranger who came to Kells to carry out his betrothal to Deirdre, who instantly shot him down due to his initial severe superiority complex. After a period of fighting the team after being Brainwashed by Maeve, Cathbad realized he was destined to be the fifth Mystic Knight. Deirdre firmly refused to go through with the marriage, but she tolerated him as a teammate, even giving him a kiss good-bye when he left almost as quickly as he came to escort a stranded princess home.
- Brainwashed and Crazy
- Evil Is Hammy: As an evil knight.
- Evil Laugh: Had one when he was evil.
- Green Thumb
- Heel–Face Turn
- Put on a Bus: But when The Bus Came Back, he brought back A Mech By Any Other Name.
- Rival Turned Evil
- Royals Who Actually Do Something: Garrett is prince of the kingdom Reged, an ally of Kells. His marriage to Deirdre was supposed to unite the two kingdoms.
- Super-Powered Evil Side: At first, but Maeve's influence gradually wanes until he's finally freed completely and can utilize his powers for good.
The ruler of Kells and father of Deirdre.
- The Good King
- It's Pronounced CON-over
- Reasonable Authority Figure
- Royals Who Actually Do Something: When Kells castle is attacked, he sometimes fights with the soldiers in battle.
The druid of Kells.
- Cool Old Guy
- Narrator: Later on in the series, Cathbad began to narrate exposition they didn't have to film, or the beginning of episodes to catch people up to the story.
- Parental Substitute: To Rohan.
- Wizard Classic
The fairy king of Tir Na Nog who gave the Mystic Knights their weapons and armor. They frequently came to him for help but more often than not heard Figure It Out Yourself, in riddle form.
- Aloof Ally: At first, so much so in fact that he made the knights take a Test Of Character before he agreed to help.
- The Fair Folk: Their king.
- The Mentor
A Ninja Butterfly (no, seriously) who followed the Knights around, serving as a messenger and spy. She had a crush on Rohan that occasionally caused her to do foolish things, like having Maeve turn her human or accidentally turning Deirdre to stone.
- Expy: Of Tinker Bell.
- Fairy Companion: Who'd prefer to be The Hero rather than a Side Kick.
- Our Fairies Are Different
Pyre, Dragon of dare
A red dragon who aids the knights in battle when they summon him with their daggers.
- Conspicuous CGI: Especially noticeable when compared to the other humanoid monsters in the series.
- Defeat Means Friendship: How he had to be obtained
- Draconic Humanoid: A large example.
- Our Dragons Are Different
- Sealed Good in a Can: The spell used to free Tyrune transferred the chains to Pyre and left him trapped in his cave for a bit.
- Undying Loyalty: To Rohan. This becomes a problem in one episode when Rohan is abducted by Tyrune, and Angus needs to convince Pyre to listen to him instead.
Maeve is the queen of Temra. She believes that being the ruler of Kells is her birthright, so she recruits the help of the dark fairy Mider.
- Bad Boss
- Big Bad: Of the first season.
- Dark Action Girl: Unlike Deirdre, was more than capable of holding her own in a one on one fight, even against Rohan.
- Evil Matriarch: To her son, Rohan.
- Evil Plan: The main one is "Conquering Kells". The episodes have smaller ones focused on the Monster of the Week
- God Save Us from the Queen!
- Large Ham
- Make My Monster Grow: Rarely.
- Maeve On Her Throne/Non-Action Big Bad: Was usually content to just sit and watch her mooks/monsters fight the knights, But when she actually fought...
- Rohan, I Am Your Mother
Queen Maeve's right-hand man. Before the series started, he was acting as The Mole for Maeve in king Conchobar's court before a young Rohan and Angus uncovered his treachery. He was revealed to be the one who stole Ivar's chalice.
- Arch-Enemy: To Ivar.
- Badass Beard: Doubles as a Beard of Evil.
- Devil in Plain Sight: He even wears a horned helmet.
- The Dragon: To Maeve.
- Evil Chancellor: Prior to the series' start.
- Face–Heel Turn: Pre-series.
A dark fairy who wishes to take over the fairy kingdom of Tir Na Nog. To reach that goal, he allies with Queen Maeve and grants her the magical power to create monsters.
- Bigger Bad: Is more powerful than Maeve and is frequently the one who gives her her potions/monsters.
- Bad Boss: Whenever he manages to take charge.
- Evilis Hammy: No piece of scenery is left undevoured whenever he's around.
- The Fair Folk: An evil example.
- Third-Person Person
- Smug Snake
The SentinelsFour guardians created by Mider to prevent the Mystic Armour from being claimed and used against Temra. After their initial defeats at the hands of the Knights they were assembled into a team and sent out to antagonize the heroes.
Tropes associated with the Sentinels as a group:
- Back from the Dead: All appeared destroyed at the end of their initial appearances yet were resurrected by Mider and sent after the Knights again.
- Badass Cape: All four wear long black capes as part of their outfit.
- The Brute: They're a Brute squad of expendable but powerful muscle, sent out to harass the protagonists when Maeve and Torc are otherwise busy.
- Evil Wears Black: All of them wear black, with or without another accent colour.
- Obviously Evil: All four are blatantly the bad guys, what with their spiked dark armours and ominous names.
- The Psycho Rangers: Each Sentinel is designed to oppose a particular knight. Assembled as a team, they became this.
- Quirky Miniboss Squad: Became this when Mider reassembled them as muscle for Maeve.
- Smug Snake: All four are given the same basic, overconfident, and condescending personality.
- Spikes of Villainy: Dressed in spiky armour.
The Ice Lord of TemraThe guardian of Rohan's armour, the Ice Lord is a skeletal figure wrapped in purple armour.
- An Ice Person: Highly resistant to cold, he could also lower the temperatures of his sword, freezing those he touched.
- Disney Villain Death: His initial defeat leaves him plummeting off a cliff after Rohan melts the ice bridge they are fighting.
- Evil Counterpart: To Rohan, as a swordsman wielding the opposing element to his own.
- Grim Up North: The Mountains of the North, where he hides out, certainly evoke this.
- Horns of Villainy: There are notable horns on his helmet and he's evil.
- Master Swordsman: Within the confines of the show's extremely limited choreography budget, he qualifies, easily dominating Rohan, said to be the best swordsman in the show, throughout their initial fight.
- Secondary Color Nemesis: Rohan wears red and gold, the Ice Lord purple.
- Sinister Scimitar: Carries a frozen scimitar that gets colder on command.
- Skeletons in the Coat Closet: His armour is decorated with bones, including a ribcage on the breastplate.
- Skull for a Head: Whether it's his actual face or the mask of his helmet is questionable, but either way, the Ice Lord shows a bare skull to the world in place of a face.
The Lightning Bat of TemraThe guardian of Dierdre's armour, the Lightning Bat comes armed with a magical boomerang and grating voice.
- Evil Counterpart: To Dierdre, as a sky-associated warrior for the other side.
- Make Me Wanna Shout: His piercing shriek serves as his weapon of last resort, forcing Dierdre to her knees.
- Would Hit a Girl: He was up against Dierdre in his first appearance and targeted her afterwards for revenge.
The Sea Serpent of TemraThe guardian of Ivar's armour, the Sea Serpent was a cackling sadist who held a grudge even better than the other Sentinels.
- Agony Beam: The shocks from his whip could act as one at range.
- Evil Counterpart: Like Ivar he's associated with water, and he has the same ability to obsess over defeats.
- It's Personal: None of the Sentinels took their first defeat well, but the Sea Serpent seems to have taken his the most personally, returning to harass Ivar as both a member of the Sentinels and independently.
- Psycho Electro: Despite his name, his primary power was not based around water but electricity and he was one of the eviler members of the cast.
- Sadist: Probably the member of the Sentinels who most enjoyed causing pain.
- The Savage South: Haunts the Southern Shore and is the main reason why it has a bad reputation.
- Villain Team-Up: Not only with the other Sentinels, but with Torc, whom he ganged up on Ivar with in an episode.
- Whip It Good: His primary weapon was his "Serpent's Tongue Whip" which emitted electrical shocks to those it touched.
The Rock Wolf of TemraThe guardian of Angus' armour, the Rock Wolf was stupid, brutish, and completely uninterested in the world around him.
- Dumb Muscle: None of the four were geniuses but the Rock Wolf was easily the dumbest.
- Evil Counterpart: To Angus, being associated with stone, none-too-bright, and relentlessly lazy.
- Eye Beams: Could fire rays of energy from his eyes.
- Lazy Bum: When Angus first showed up the Rock Wolf didn't even want to fight him and tried to just bluster him into going away. When Angus pressed the issue, the Rock Wolf settled for driving him off, then promptly retreating to his cave.
- Red and Black and Evil All Over: Wore black armour with red highlights.
- Wolverine Claws: His awkwardly named "Wolf's Tooth Claw" which was fixed to one of his wrists and served as his main weapon.