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Raiden "Ray" Pierce-Okamoto
- Voiced by: Scott Wolf
"I know Grandpa, 'Bob and Weave' — a moving target is harder to hit."
The main hero of our story, Ray's a good-natured kid and a talented sketch artist, if a bit of a daydreamer. This nature doesn't lead to him making many 'normal' friends, but does make him subject for bullying. Once a string of fateful events leads to him discovering the art and world of Kaijudo, it's not long before all his latent potential starts unveiling itself.
- The Ace: As the names of the first three episodes imply, Ray turns out to be a natural for Kaijudo. He himself feels like he belongs with the art. Not only does he catch on to the ways of said art, like quickly picking up perfect gateway summoning stances and perfect creature control, he also summons Tatsurion the Unchained, a powerful hybrid creature, after only a two second glance at his tablet. Certain creatures seem to take a shining to him as well. It turns out his mom's a former Kaijudo practitioner, his father was Suguru a.k.a. Ken Okamoto, and he was born in the Creature Realm.
- Achievements in Ignorance: Being a talented sketch artist for his age, he managed to draw a "tablet" depicting a Rumbling Terrasuar perfectly, even though he'd never seen one before. Though we later learn he had seen one before when he was a baby in the Creature Realm with his parents; he even bonded with it. In a pinch with the bullies, he even correctly "made up" the creature's name, summoning it and scaring the bullies (and him and his friends) away.
- Anime Hair: Toned down. He has a normal haircut, but part of his hair is red while the other is black.
- The Beast Master: Being born in the creature realm allows him to tame creatures far easier than others.
- Beware the Nice Ones: He is a nice, gentle kid, but he can be quite mischievous and aggressive when driven mad. Best examples being Carny or with Saguru's betrayal.
- Guile Hero: Displays shades of it. He actually succeeds in out gambitting The Choten at some point.
- Mixed Ancestry: Ray is half-Japanese and half American. And having been born in the Creature Realm no less.
- Hot-Blooded: Ray is usually pretty calm and level-headed, except in a fight where his hotblooded tendencies begin to crop up.
- Indy Ploy: All the time.
- Midseason Upgrade: His gauntlet gets upgraded by the Fire Civilization Monarch in The Siphon
- Morality Pet: He sort of becomes one to Alakshmi in season 2 after saving her from the Fire Civilization.
- Multicolored Hair: Probably to reflect his shonen hero-like status, his bangs are red at their ends. According to a picture, his dad doesn't have them, so Ray's are probably dyed.
- Nice Guy: Definitely a stand up guy; his mom notes that he can't bare to see injustice stand, just like his father. Still, best not to prod him too much.
- Nice Job Breaking It, Hero!: Thanks to his single-minded thought process in "Bargain" he winds up handing over the Spell of Liquid Compulsion to The Choten.
Tatsurion the Unchained / Bob
- Voiced by: David Sobolov
"You may call me Bob."
Tatsurion, a half Nature Civilization Beast-Kin and half Fire Civilization Dragon hybrid creature, has lived a tough life which has made him into the strong and cynical warrior he is today. When first summoned by Ray, he is understandably upset with the whole affair, but it's not long before Ray's straightforward and earnest personality gets through his tough "outer shell", revealing a pretty stand up guy underneath. He and Ray turn out to have more in common then you'd think.Tatsurion got the nickname 'Bob' from 'Bob and Weave' when Ray tried to stress to him to dodge more often, and it just kinda stuck.
- Badass Baritone: Voiced by famously baritone David Sobolov, and exceedingly badass.
- Berserk Button: He doesn't react well to parents, especially fathers, mistreating their sons.
- The Big Guy: And surprisingly, rather gentle too, once you get by the gruff exterior.
- Brainwashed and Crazy: Inflicted to him through evolution serum and a control collar by The Choten. He gets better, thanks to Ray.
- Breath Weapon: Gains the ability to breathe fire after getting hit with The Choten's evolution serum.
- Chain Pain: Why do you think he calls himself the Unchained? Because he was once chained as a criminal and has since escaped with the chains still on him.
- The Comically Serious: He laughs exactly once.
- Deadpan Snarker: He certainly has his moments.
- Defrosting Ice King: Ironically.
- Embarrassing Nickname: Bare Bottom, his name among his mother's family. He initially also disliked being called Bob, but he ends up enjoying it.
- Flight: Gains some spiffy new Dragon Wings, to go with his new fire breath.
- Jerkass Façade/Hidden Heart of Gold: At a first glance, he appears aggressive, seemingly always angry. Yet, he is actually much nicer than he lets on.
- Mixed Ancestry: Part Dragon (from the Fire Civilization) and part Quillspike (from the Nature Civilization).
- More Dakka: He has various firearms hidden on him. He usually rather use them as a last resort however.
- Our Nudity Is Different: Sorta spends a good deal of the first three Episodes of the Second Season without his armor & weapons, leaving him completely nude, yet no one took any note of it; plus he accidentally flaunted it unknowingly.
- Pants-Free: Usually doesn't wear them.
- Parental Neglect: On the dragon side of his family, due to his half-breed status. His father pretty much ignored his existence.
- Playing with Fire: Initially he could only ignite his head for flame charged tackles. Now he has full blown fire breath.
- Prickly Quillspike: Though embarrassingly less so than his half-brothers Razorhide and Prickleback.
- Reptiles Are Abhorrent: Averted; he is part reptilian, but he is very much a good guy.
- Strong Family Resemblance: Noted by his mother, Headstrong Wanderer, when she remarks that his wings makes him look just like his father, Napalmeon the Conquering. He replies that he is not his father.
- Tsundere: Non-romantic example toward Ray and the Quillspike side of his family.
- "Well Done, Son!" Guy: This is something he has in common with Carny no less.
- Whip It Good: Uses his chains as a whip and a means to restrain his opponents.
Gabriel "Gabe" Wallace
"Actually, argiope trifasciata isn't harmful to most people and incidentally, without spiders, insects would overrun the world, but you wouldn't know that, ignoramus maximus. ...Did I just say that out loud?"
A very intelligent, analytical, and logical young man and one of Ray's friends. He met Ray at a gamer's convention where he beat him in a tournament of some sort and they became fast friends. Similar to Ray, his overall personality doesn't allow him to make friends easily, though this doesn't really concern him much being a self-proclaimed nerd and all. He discovers Kaijudo alongside Ray and Allie. Said discovery may lead to him thinking about things that he never would have concerned himself with, thus changing his overall outlook.
- Batman Gambit: Rather good at these.
- Black and Nerdy: Self-proclaimed nerd at that.
- Black Bestfriend: To Ray and Allie.
- Cannot Talk to Women: He turns into a nervous mess when needing to associate with girls his age other than Allie.
- Cowardly Lion: Most noticeable when his friends, brothers, or Sasha are in danger.
- Establishing Character Moment: The above quote Gabe utters in the first episode says quite a bit about his character.
- Fat Best Friend: The shy variety.
- Heroic B.S.O.D.: His reaction when finding out Sasha was apparently dead from losing the Heart of Light.
- Interspecies Romance: He has a strong crush on Sasha.
- Living Emotional Crutch: To Sasha. When she goes berserk, just thinking about him can calm her down.
- Motor Mouth: Has a tendency to ramble at times and also stutters too when he's nervous.
- Only Sane Man: He's this in spades.
- The Smart Guy: Takes pride in using his brain to get by in life.
- Sesquipedalian Loquaciousness: Often to Allie's frustration.
- The Spock: Definitely the logic man of the group, or at least he tries to be. Sometimes the logical route isn't the best route.
- Vitriolic Best Buds: With Allie.
- Comical Overreacting: Has freaked out on occasion.
- Apparently he's also been surprisingly dull at times.
- &, there was one time when he thought he'd exposed to deadly poison that turned to be from the Non-Fatal Stringing Nettle.
- Apparently he's also been surprisingly dull at times.
Reef Prince Glu-urrgle / Gargle
- Voiced by: Dee Bradley Baker
"Hey! What up G-abriel?"
A Water Civilization creature and heir to the Water Capital throne (but so far displaced that it doesn't really matter). When the Masters assigns the group water creatures, Master Nadia summons the Reef Prince for Gabe. They didn't get along at all at first until Gabe opened up to him and began listening to Gargle's advice. After which, they became pretty close, with Gabe summoning him anytime the gang needs something invented to help with their current situation.He gained the nickname 'Gargle' from Allie who said he looks like a spit cup at the dentist. Tellingly, he's not particularly fond of her.
- Clingy Jealous Guy: Show shades of this in Heavenly Creatures when Gabe summons him for the first time in a while.Gargle: Humph! Call Gargle for tech support. Call Angel Command for chat mode!
- Cloud Cuckoolander: His super-inquisitive nature makes him come off as this. His use of internet slang further adds to this.
- The Exile: Becomes this in "The King's Speech" after a Choten-controlled King Tritonus banishes him from the Water Civilization.
- Expy: Of Gir.
- Gadgeteer Genius: Glu-urrgle isn't exactly impressive as a fighter, but he has the ability to create any kind of machine, weaponry, or vehicle from any scrap that is around. In a few seconds.
- Leet Lingo: Since he learned English from the internet via Gabe's smart phone, he oftentimes talks like this.
- Me's a Crowd: The Evolution Spell splits him into five mini-versions of himself.
- My Friends... and Zoidberg: Doesn't really consider Allie a friend.Gargle: Gargle has airsuits for friends. Friend G-abriel. Friend Ray. Friend Squeaky. Err...Allie?
- Royals Who Actually Do SomethingGargle: Gargle is Reef Prince.
- Science Hero: The Water Civilizations hat, but Gargle is especially adept at using his smarts to win fights.
- Warrior Prince: He is actually part of the Princes of the Water Civilization though, not strictly a fighter.
Sasha, Channeler of Light
"You do not command me. I am a Princess of the Light Civilization."
One day, when the gang are studying Darkness creatures, Gabe decides to study up on their anti-thesis — Light creatures, first and foremost being Angel Command, their ruling class. Later, when in a tough spot, Gabe decides to summon one. The one being Sasha, Channeler of Light. This Light Civilization Princess only came through the portal out of curiosity, and though rather stand-offish, she eventually helps with the problem a hand. She returns later on a mission from the Light Civilization to study the earth and its people, deciding to use Gabe as a chaperone. Under the guise of a foreign exchange student, she learns a few of the nice things in life on Gabe's side of the veil...as well as the not so nice.
- Adorkable: When posing as a human, due to the Fish out of Water aspect.
- Badass Princess: Princess of the Light Civilization, and not someone to mess with.
- Berserk Button: Trying to command Light creatures to attack their rulers.
- And, on a more humorous note, paradoxes.
- Cannot Tell a Lie: The Light Civilization Creatures are unable to lie, and Sasha isn't an exception to this rule.
- Defrosting Ice Queen: As she learns more about humans and their emotions, she becomes more receptive to Gabe and the others.
- Disney Death: When Saguru takes the Heart of Light from Sasha, she ceases to function and is presumed dead. She later comes back to life when the Heart is recovered and Gargle reinserts it into Sasha.
- Doomed Home Town: The Keep she lived in was destroyed by The Choten's minions after Gabe and the others rescued her.
- Fish out of Water: When she's disguised as a human.
- Holographic Disguise: Can use light to disguise herself as a human.
- Kids Are Cruel/Teens Are Monsters: During her visit to San Campion High, she was unfortunate enough to experience the darker side of things and almost snaps.
- Large Ham: Not normally, but she can be quite dramatic with her words on occasion.
- MacGuffin Super Person: In season 1, she holds the Light Civilization artifact, the Heart of Light, inside of her as her power source. By season 2, though, she has been provided with a new power source and given back the Heart to Eternal Haven.
- Our Angels Are Different: They're robotic.
- Robot Girl: Whom, predictably or not, Gabe has a crush on.
- Royals Who Actually Do Something: Was sent out on a mission to earth to learn about it and its people, and when her home is under attack, she proclaims she will stay and defend is to the last, though Gabe talks her out of it in the end.
- The Sixth Ranger: The closest you'd get to one to the trio in season one.
- Winged Humanoid: Can extend mechanical wings from her back.Gabe:(in awe) Of course you have wings.
Alison "Allie" Underhill
"Earth to Ray. Are you actually zenning out or in shock? Because I'm in SHOCK!"
Ray's other friend, the two have known each other since childhood. Since Allie's dad is the manager of a San Campion bank, her family is pretty well off. Despite having all the qualifications of a spoiled rich girl and occasionally slipping into the mindset (including having two mean girls she sometimes hangs with) she's actually pretty nice and kindhearted, even if she has a bit of dark side that stems from her mommy issues. She has no problem with and is often seen hanging out with Ray and Gabe, though she will often snark at Gabe when he frustrates her. Like Gabe, she starts out "out of her groove", but eventually finds her place, and her affinity for Darkness Creatures, upon finding her main partner Squeaky.
- Badass in Distress: When captured by Megaria. She ends up being the one saving the ones who came to rescue her.
- Childhood Friend: With Ray.
- Combat Pragmatist: As befitting the "way of Darkness," she is very quick to use trickery and stealth to get out of a bind.
- Dark is Not Evil: Probably exemplifies this the most among Darkness creatures and users.
- Deadpan Snarker: Probably the most snarky of the trio.
- Distressed Damsel: Briefly, when she was trapped in the Fire Civilization. At least she did try to get away on her own. More than once in fact.
- Drunk on the Dark Side: Under the polluting influence of the Cloak of Dark Illusions.
- Evil Costume Switch: During her brief imprisonment under Megaria, the Collector.
- Guile Hero: Proves to be a remarkably good one when dealing with Megaria. And later The Choten.
- Good Counterpart: To Alakshmi.
- Half-Human Hybrid: Not-so subtly implied in Season 2 Episodes 12 and 13 that Megaria may not just be playacting the role of her mother after all. It would certainly explain Allie's natural affiliation for the Darkness element, the Cloak of Dark Illusion's attachment towards her, and her mother's mysterious disappearance.
- He Is Not My Boyfriend: With Ray. It seems she was initially sincere, but they do get some Ship Tease later.
- Horrible Judge of Character: One could say she is in regards to Portia and Maribel. That, or willfully ignorant.
- Ray points that out in "Cease Fire".
- The Lancer: To Ray.
- Living Shadow: While under the Cloak of Dark Illusion's influence in Season 2 her shadow morphs into a fanged, tentacled monstrosity and eats Portia's shadow. It later detaches from her to attack Sykes and Nickles.
- Lonely Rich Kid: Subverted, despite her mommy issues, she could use her general popularity to get any friend she'd want, but still sticks with Ray, Gabe, and later Lucy.
- Missing Mom: She and Ray each growing up with only one parent is how they became such good friends. Later episodes hint, then confirm, that Allie's mom Piper ran away. Her dad, Artie, pines for her return and even named his boat after her, taking care of it lovingly.
- The Nicknamer: With the exception of Bob and Shaw K'Naw, she is the one nicknaming all the creatures.
- Save the Villain: She makes it no secret she thinks this is a terrible idea. She was proven right.
- Ship Tease: It was hinted that she likes Ray in Into the Void.
- Slumber Party: Has one in Night Moves with Portia, Maribel, and Lucy with the hopes the former two can learn to get along with latter. Unfortunately for her, "Sleepovers do not fix all", and the whole thing just goes from bad to worse.
- Spoiled Sweet: Her father is rich, and she is shown to be friends (or at least have been friends; later episode show they don't get along well anymore) with at least two Alpha Bitchs. Yet, she is an extremely nice person and friends with both Ray and Gabe, and tries hard to help Sasha's blending-in when she comes to visit the human world.
- Token Girl: Of the trio. Possibly subverted if you count Sasha later on.
- Tsundere: Type B. This got taken Up to Eleven with Ray in the second season.
- Vitriolic Best Buds: With Gabe and later, Ray in Season 2.
- Yandere: Unconsciously toward Ray when under the effect of the Dark Cloak of Illusion.
Scaradorable of Gloom Hollow / Squeaky
A rather adorable Koala-looking Darkness creature who doesn't show up until halfway into episode 6, Into the Fire, Part 1. She was somehow captured by the Fire Civilization and was being prepared as Lord Skycrusher's meal when a captured Allie happened upon her. They bonded right away, and once rescued, Allie was determined not to leave the newly dubbed Squeaky behind. After the ordeal, Squeaky became Allie's creature partner. She's the only one of the trio's creature partners that can't speak English, instead communicating in squeaks, hence her nickname.
- Badass Adorable: Right there in the name. Though she's only adorable in her standard form.
- Body Horror: When Squeaky turns into her 'other' form, she's actually turning herself inside-out.
- Creepy Good: Definitely a highlight for Allie.
- Cuddle Bug: Really likes hugging people, especially Allie.
- Dark is Not Evil: Despite being a Darkness creature with a quite creepy One-Winged Angel form, Squeaky is a very nice creature.
- Forgot About Her Powers: She hasn't used her Game Face / One-Winged Angel ability for a very large part of season 2.
- Game Face: Along with the rest of her kind, can change from this to this.
- Meaningful Name: "Scaradorable" for a typically Ugly Cute creature.
- Oddball Doppelganger: The Evolution Spell turns her into a partial copy of a nearby creature, giving her their abilities as well.
- One-Winged Angel: Her regular form looks like a big cute koala-like creature, but she can suddenly turn into a tall, black, Xenomorph-like being.
- Ridiculously Cute Critter: In her regular form. She also has the ability to mesmerize others in her cuteness as a distraction.
- Team Pet: Is the most 'pet like' of the trio's creature partners.
- Pet Monstrosity: In her 'other' form.
- The Worf Effect: Sadly tends to happen to her quite often. It doesn't help Allie seems to have forgotten about her alternate form.
Master Hector Chavez
- Voiced by: Freddy Rodriguez
"Welcome to The Temple of the Kaijudo Duel Masters."
Hector Chavez, the Fire Civilization's Duel Master, is the first Duel Master Ray, Gabe, and Allie meet. After following Ray and the others to Allie's house to return Ray's sketchbook and question him on the summoned Terrasuar, it isn't long before a looming threat necessitates Chavez to whisk the kids away to the Creature Realm. After a good scare, Chavez decides to bring them into his order.Out of all the Duel Masters, he is the most reasonable and compassionate of the bunch, alongside Kimora; he even gives Ray one last chance to convince his friends to join and try harder at being an acolyte, and he can often be found arguing on Ray and his friends behalf.
- Character Development: Throughout the first season, Ray's positive influence makes a change in Chavez, and in fact all the Duel Masters. Though a more reasonable person then most, he still held the general belief of a Kaijudo practitioner like not touching creature. He softens to these things considerably as time went on. Jaha at one point state that Ray "is a bad influence on you" to Chavez.
- Establishing Character Moment: He is the first character introduced in the show, with a scene where he summons Gigaflame and uses him to defeat a creature. Most importantly, this serves as the scene that introduces the very concept of Kaijudo.
- In the Hood: When we first see him, though he generally doesn't wear it up.
- The Lancer: Among the Duel Masters, he is the most likely to challenge and appose Nigel's opinion and has called him out on things more than once. Also, he is a pretty nice guy and close to the kids, in contrast with Nigel's jerkassery.
- The Mentor: To the kids; they all have this role in a way, sure, but he is the first they meet, the first to get close to them, and by far the one who is the most friendly for most of the series.
- Mr. Exposition: In the Pilot.
- Official Couple: With Nadia come season one's end.
- Reasonable Authority Figure: He's the one who saw the potential in Ray, he was the one who listened to Ray when he asked to be given another chance to convince his friends to try harder in joining the order, and he also argued in favor of Ray joining in spite of Nigel and Nadia's doubts, bringing up the possibility that the Kaijudo way could be in need of change.
- Red Oni, Blue Oni: Red to Nigel's Blue.
- Ship Tease: With Master Nadia throughout the first season. Notable because romance between members of the order is against the rules. Becomes an official couple with her in season one's finale, with Jaha's kinda-sorta backhanded blessing, too.
Gilaflame the Assaulter
- Blade Below the Shoulder: His trademark weapons.
- Fragile Speedster: Gilaflame is fast, but give him one good hit and he's usually down for the count. Mostly noticeable when he's cornered and can't dodge.
- Language Barrier: While he and Hector work well together, they cannot communicate, as humans are unable to speak Gilaflame's language and vice versa.
- Multi-Armed and Dangerous: When evolved.
- Playing with Fire: Fire appears from his blades below his shoulders when he trails them across the ground.
- Reptiles Are Abhorrent: Averted; he is a lizard-man, but pretty much a good guy.
- The Speechless: A trait most of the Duel Masters' creatures share.
Chavez: Until now I didn't even know he could speak!
- Suddenly Voiced/The Unintelligible: As shows during "The Butterfly Effect" he can speak. But only Drakon, a language Chavez doesn't know.
- The Stoic: Doesn't really have much reactions outside of battle.
- True Companions: Seems to be his relationship with Hector; despite the rule to never touch or befriend the creatures, both seem to have a strong respect for each other, judging by the way they bow to each other in the pilot, and he mentions that Gigaflame always answers his call.
- Undying Loyalty: To Master Chavez. Proven when he's able to resist Alakshmi's command to kill him long enough to break the collar controlling Mighty Shouter, who is able to save them.
Master Nadia Lobachevsky
"I am the keeper of the Order's history and knowledge. I wasn't aware we had begun giving tours to children."
As the Water Civilization Master, Nadia is the logical one. She has a tendency to speak frankly about a situation and so comes off on blunt side. Next to Nigel, she is the most antagonistic to the acolytes and also was opposed to them joining. Even after the kids help them out early on, she only compliments there "promise" after pointing out their lack of "technique and talent". That being said, her logical mind is what leads her to trust and have faith in the kids due to their continued successes.
- Badass Long Coat: A knee length leather duster coat.
- Character Development: She goes from being just as skeptical as Nigel about the kids to warming up to them as their methods continue to provide positive results.
- She even seems to.grow out of the idea of touching Creatures being a bad thing, as she can be seen casually petting Rusalka.
- Defrosting Ice Queen: In her first appearances, she was rather cold and just doing her duties without any reserves. She does displays concern however when she comes to save the kids from the Water Civilization. After that, she gradually warms up on them.
- Ironic Echo: A slight variation on her early line towards the kids about lacking talent and technique but having promise is echoed by Alakshmi when she's training Carny.
- Reasonable Authority Figure: She doesn't start out like this despite being the "Logical Duel Master", but after the kids prove themselves again and again, she eventually grows into this. She even points out to Nigel how the kids' way of befriending creatures has lead them to form strong ties, like with Light Civilization royalty.
- The Smart Girl: Due to the Water Civilization being the one that is the most technology and knowledge oriented, she usually is the one who takes care of those kinds of matters.
- The Spock: Like the Civilization she specializes in, Nadia prides herself on operating logically and intelligently.
- You Gotta Have Pink Hair
- Meaningful Name: Named after the sea creature from Slavic mythology.
- Telepathy: How she communicates with Nadia.
- Sea Monster: A Sea-serpent to be specific.
- The Speechless: Instead of talking out loud, Rusalka communicates telepathically. We of course only get the second hand interpretation from whomever Rusalka "talks" to.
Master Benjirou Kimora
- Voiced by: Andrew Kishino
"Because of you, we learned much to help us, just as I learned — or finally excepted — that you were right, Ray. The creatures we duel with are intelligent, feeling beings, valued allies, and yes — friends."
Master Kimora, the Nature Civilization Duel Master. is the most down to earth of the bunch. When the Masters were arguing about newcomer Ray, Kimora was the one who pointed out that when Ray showed a willingness to share his creature's (Bob's) fate, it inspired it to let him aboard. H e believes in one of nature's creeds, that what will be will be, and it's not long before he has complete faith in the new acolytes.
- Big Fun: The most corpulent of the Masters, and also the most genial among them.
- The Big Guy: Literally.
- Character Development: He starts out like the others Duel Masters, treating the creatures anywhere between pets and well-tended tools. Thanks to Mighty Shouter, he eventually comes around to see things from Ray's perspective.
- Green Thumb: In Kimora's part of the temple, he keeps a beautiful garden where he is often seen taking care of the plants and flowers there.
- Nature Hero: His specialty is Nature creatures, and he himself has a gardening hobby.
- Nice Guy: While it takes even Hector time to accept the kids, Kimora is nice from the start.
- Reasonable Authority Figure: Becomes this over the course of the series. Specifically, after realizing that Mighty Shouter is a real living being, with his own life and problems, and that summoning him all wily-nily can indeed lead to Shouter developing even more problems, he had an epiphany moment, realizing that Ray's way of treating the creatures an intelligent beings was the right thing to do.
- Voiced by: Scott Wolf
"No! Shouter fight beside Kimora no more. Shouter protect tribe now. Others think Shouter's stories of Duels with Kimora are dreams of madness. Make Shouter live over there — alone." (echoing to tribesmen) "SHOUTER'S STORIES TRUE!"
- Cloud Cuckoolander: He isn't one, but as mentioned in his quote, he used to be seen as one by other Nature Creatures, who believed him insane due to his stories about Duels and humans. After he proved he was right, though, they get a newfound respect for him and name him their shaman.
- Expy: Big, green, and has a limited vocabulary. Odds are that The Incredible Hulk will come to mind.
- Gentle Giant: The biggest and most imposing creature among the ones used by the Masters; also one of the nicest among them.
- Handicapped Badass: He lost part his Tusks (which are the part of him that hold his mana), meaning he is severely weaker; he still manages to fight pretty well when duel alongside Kimora. He gets cured by Ray eventually.
- Mighty Glacier: Very big, very slow, very hard to take down.
- The Speechless: Averted. Notably the only one of the Duel Masters primary creatures to ever speak. Even Kimora didn't know he could. Shouter tells Kimora he only chooses to speak when on his own world. This is one of the primary reasons that causes Kimora to begin seeing things from Ray's point of view.
- War Elephants: Sort of; he is a giant anthropomorphic green elephant, after all.
- Voiced by: Dee Bradley Baker
"Those who use Darkness must operate in unexpected ways."
Darkness Civilization Master Jaha is a lot of things, above all, secretive. Though she and Master Nigel have a number of things in common, like their habit of keeping on top of things via spying and their fondness for the rules, in the end, she is the neutral Master; realizing that the old ways have served their Order well, but also that you'll never know what lies beyond the darkness of uncertainty unless you explore it. To that end, despite her fondness for Nigel, she's not quite in his camp, as the season finale shows clearly.Despite her wrinkled and frail appearance, she is quite able and agile when she needs to be. There are hints that she was quite the infamous individual in the Darkness realm in the past.
- Big Good: Being the oldest of the current Dual Masters, she is usually the one in charge of things, and even the other ones tend to answer to her decisions. This pretty much solidifies after Brightmore betrays them.
- Combat Pragmatism: See her quote.
- Dark is Not Evil: The Darkness Civilization Master, and a semi-pleasant old lady to hang with.
- Exact Words: When she apparently joins the Choten and Brightmore in the season 1 finale, she justifies herself by saying "it's the Darkness Way", which is interpreted as I Fight for the Strongest Side. Right in the next episode. It turns out she actually meant the Darkness Way was "To operate in unexpected ways."
- Guile Heroine: Acts as a fake defector to trick Master Brightmore and backstab him
- Face–Heel Turn: She chooses to join The Choten after learning of Brightmore's betrayal. Turns out to be a Fake Defector right in the next episode.
- I Was Quite a Looker: When her youth is restored in the season 2 finale; she isn't exactly the most beautiful character in the show, but the change still is quite impressive◊.
- Miniature Senior Citizens: She has no qualms about using her size to get free rides from Kimora or Gabe.
- Never Mess with Granny: Her stick actually is the arm of Megaria's brother; she apparently killed him by herself. Also, in the season 2 finale, she is reduced even more of an aged dusk by Megaria, and still manages to banish the Darkness Lord back to the Darkness Civlization.
- Properly Paranoid: Sort of; according to the pilot, she has the habit to always spy and observe everyone from the dark. Proves to be a good thing when she surprises Master Brightmore, getting the call to help from their acolytes and forces him to call the other Masters before he can hide the message.
- Skeletons in the Coat Closet: In her younger form.
- To Be Lawful or Good: Different from Brightmore, as while she does believe in following the rules for the most part, she will bend them if she has to. She'll also accept new ways of dueling for others even if she prefers and sticks to the old ways.
- Younger Than They Look: It's implied in the season 2 finale she actually isn't that old, but was aged by a curse from Megaria, forcing her to use her stick as a mana source to retain her normal physical abilities. When the curse is lifted, her youth is restored.
Black Feather of Shadow Abyss
- Creepy Good: A creepy looking skeleton...thing. Also on the side of the good guys.
- Dark is Not Evil: Like Jaha, it's dark appearance doesn't meant it's evil.
- Eye Beams: Purple ones.
- Squishy Wizard: You'll notice that Black Feather doesn't last too long in combat after getting hit.
- The Speechless: A trait most of the Duel Masters' creatures share.
- The Stoic: Doesn't have much in the way of reactions to anything.
Master Isao Okamato
- Voiced by: Keone Young
- Arch-Enemy: He has a personal grudge and rivalry against Master Brightmore. He also has quite a bit of animosity toward him though this seems to be mutual.
- Badass Grandpa: Around the same age than Ray's grandfather, and a skilled Kaijudo Master.
- Crazy-Prepared: Not only did he specialize in using Light Creatures, he also practiced how to use their weakness.
- Played for Laughs when he comes to Ray's family reunion with umbrellas as gifts, even though it never rains in San Campion. A few minutes later, the Butterfly Effect causes geisers to erupt next to the house... giving him the opportunity to use said umbrellas.Isao: Umbrellas; very handy.
- Played for Laughs when he comes to Ray's family reunion with umbrellas as gifts, even though it never rains in San Campion. A few minutes later, the Butterfly Effect causes geisers to erupt next to the house... giving him the opportunity to use said umbrellas.
- Grumpy Old Man: In contrast to his brother, Grandpa Raiden. Jaha even refers to him as a "Stubborn old goat".
- Jerkass: When first introduced, he is openly hostile toward Ray, constantly calling him rude or a savage for not respecting all the traditional rules and ethics in a Japanese home.
- Jerk with a Heart of Gold: It later turns out he isn't as bad as he appears on the first look; after moving to San Campion, he genuinely tries to improve the relationships between his family.
- The Mentor: Used to be this to Ken; he was the one who introduced him to Kaijudo in the first place.
- Suspiciously Similar Substitute: He is in many ways similar to Master Brightmore, albeit nicer once they learn more about him, and not as extreme. Even their looks and creatures have similarities.
- "Unmasked" shows that the two of them actually dislike the other. Brightmore even taunting him over the fact that he was passed over for Light Master in the past.
- Animal Motif: His head distinctly looks like an eagle's.
- Blade Below the Shoulder: His entire arm in fact is a blade.
- Mechanical Life Form: Like most Light Civilization creatures.
The Choten's side
August "The Choten"
- Voiced by: Oded Fehr
"You need to see these monsters for what they are — batteries."
The primary villain of the show, The Choten was once a Duel Master until he defected their ranks because he felt their rules and way of going about things were to restrictive and archaic. To show this, he took some loyal acolytes, stole away to secret hideout, created new Tech Gauntlets as a more direct and efficient means to summon and control creatures, and began experimenting on creatures in order to use them as a viable energy resource and also to make them stronger. He even managed to obtain a financial backer help pay for all this.A sinisterly pragmatic man with values similar to, and yet different from, the other Masters, he and Ray end up developing into each others anti-thesis. Where as Ray only wants to work with and befriend the creatures, The Choten only wishes to see and use them as tools and resources in the utmost sense of the two words. And of course, with an end game goal in mind to take over the world -- both of them.For an, as of yet, unexplained reason, the Duel Masters and his minions only ever refer to him as "The Choten", including The Choten himself.
- All Your Powers Combined: "The Rising" finale has him combines all the artifacts into one, thus getting the power to control all creatures of the five Civilizations.
- Badass in a Nice Suit: As the former master of the Water civilization, he's a very skilled duelist. Also, he wears a very nice suit.
- Bad Boss: Played with; it seems he actually punishes his minions proportionally to how much it's their fault and how much damage their failures cause: Alakshmi, who failed several times but caused no major defeat that he couldn't turn into an advantage, got away with only gradually losing his confidence until she proved her value again, Saguru, who caused him to lose the Shield of Unity which dropped into the Darkness Civilization, merely got part of his stored memory destroyed, and Fingers, who caused him to durably lose a unique and powerful evolved creature, ended up sent to the Darkness Realm.
- Beard of Evil: Inverted; he had a goatee when he was a Duel Master, but is clean shaven as a villain.
- Beneath the Mask: When first introduced, he is portrayed as a rather Affably Evil character who reacts calmly to failures, forgives Alakshmi's errors easily (often because he has a Xanatos Gambit in mind to ensure he will end up winning something anyway) and generally stays almost phlegmatic, to the point you might be surprised to hear he is the villain. As the story goes on, he gradually starts displaying more and more sadistic and Not So Stoic moments, Kicking the Dog more often and acting more irritated, slowly revealing his true nature.
- He is also portrayed at first as being friendly to Nigel and viewing him as a friend, but with the reveal of Teira being alive he speaks several times with spite towards Nigel about the event, suggesting his friendliness is just a act.
- Big Bad: Of the show.
- The Chessmaster: A skilled strategist and master planner, The Choten seems to have a plan for every scenario.
- Deadpan Snarker: While not as much as Alakshmi or Allie, he definitely has his moments.
- Diabolical Mastermind: As the leader of a very long-reaching and influential crime syndicate, he's a fusion between a terrorist and a mob boss.
- Exact Words: His mutation antidote cures mutated Creatures. He never said anything about Human-Creature hybrids.
- Fallen Hero: He was Master Nadia's teacher and the original Water Civilization Master.
- Faux Affably Evil: Polite, well-mannered, well-dressed, reasonably handsome... and a complete asshole.
- Hoist by His Own Petard: His own scheme caused a rock to fall knocking him out cold.
- Also, in Bargain, he provides Ray with the tablet to summon Aqua Sceneschal so he can contact him for their deal. In Siege, Ray use the knownledge to summon Sceneschal and force him to help infiltrate his ship.
- Laser-Guided Karma: Considering all the Jerk Ass things he does, this was definitely deserved.
- Lack of Empathy: Especially towards the creatures, whom he dispassionately refers to as "monsters" who's only uses are as a renewable source of energy (their recharging Mana) and warfare.
- Mad Scientist: On the creatures of course. His experiments on them are what introduce the concept of "Creature Evolution" to the show.
- Making a Splash: He used to be the Master of the Water Civilization before Master Nadia, and as a result, specializes in Water Civilization creatures. Also, the Helm of Ultimate Technology is the last Artifact he keeps at the end of season 1.
- Manipulative Bastard: Poor Ken...
- No Name Given/Everyone Calls Him "Barkeep": So far, we are only ever referred to him by "The Choten".
- Until "The San Campion Triangle" when Suguru calls him August.
- Not So Different: Claims so about the Duel Masters, since much like him, they treat the creatures as tools.
- Psychotic Smirk: He rarely displays any really mean expressions, but does fit this trope quite well when sending Fingers to the Darkness Realm.
- Soft-Spoken Sadist: Big time. He will keep talking to people like friends even while he is torturing them psychologically and/or physically.
- The Nicknamer: The Choten has a shade of this as he refers to Ken Okamoto as "Kenny" and usually addresses Nigel as "Nigel, Old Bean". In Nigel's case this also doubles as an Affectionate Nickname.
- The Stoic
- Not So Stoic: He has a few moments; when Ray destroys his Kaijudo portal, when Suguru betrays him, and when Allie (Disguised as Alakshmi) commands Infernus to attack him.
- He also seems scared the crap out of himself when Alakshmi has him at her mercy in Unmasked.
- Not So Stoic: He has a few moments; when Ray destroys his Kaijudo portal, when Suguru betrays him, and when Allie (Disguised as Alakshmi) commands Infernus to attack him.
- The Strategist: Evil version.
- Utopia Justifies the Means/Well-Intentioned Extremist: In his mind, he's just doing the world a favor. Since the Veil is weak and could come undone at any time, he decides to use the Creature Monarchs to tear it done right away, and afterwords, rule over the new world order as supreme king. ...Well, he's not COMPLETELY self-serving.
- Villainous Breakdown: Despite being usually calm, almost phlegmatic, he starts losing his self-control when he fails to get the Heart of Light and gets betrayed by Saguru.
- He has a short one when Allie, disguised as Alakshmi, orders Infernus to attack him.
- Villain Takes an Interest: Shortly, in Ray. He gave up on it as soon as Ray refused.
- Where Does He Get All Those Wonderful Toys?: From Alex, the Mayor of San Campion a.k.a. Carny's father, who secretly supports The Choten's efforts financially.
- World Domination: Two of them; he intends to control both the Human World and the Creature's World.
- "Today, the Light Civilization, tomorrow, the World... both of them."
- Would Hurt a Child: Would be entirely willing to murder children if it gets him what he wants. This is the point when Saguru decides he is going too far.
- You Have Failed Me: Averted with Alakshmi; she fails several times, but rather than get rid of her, he only loses faith in her.
- Played straight with Fingers, who he sends to the Darkness Realm after his errors caused a powerful evolved creature to be lost.
- Eventually played straight toward Alakshmi as well in The Rising.
- An even crueler version when he has Sceneschal eaten by his creature for having been used by Ray to infiltrate his ship.
- You Have Outlived Your Usefulness: While he does keep his promise to Saguru that he would give him his memory back, he immediately has him imprisoned after that, leaving him to the same fate as the creatures.
The Choten's primary creature. Intelligent, he willingly serves as his most dutiful underling, building, maintaining, and operating the most sophisticated equipment in The Choten's repertoire.
- Co-Dragons: With Alakshmi, at least until her defection. Saguru was this as well until his memory were restored. In season 2 Nigel appears to now be this.
- Cyber Cyclops: Sort of; he is part bionic and part water.
- Evil Counterpart: To Glargle.
- Evil Genius: He rarely fights, usually sticking to Butler roles, explaining how creature-related artifacts work and helping The Choten with technology. In fact, whenever he does fight, he proves to be rather ineffective.
- Squishy Wizard: He is extremely intelligent, possess advanced knowledge on Artifacts and other materials, and can do fairly well in a fight, but his resilience seems rather limited; it took a single hit from Tatsurion to take him down in "The Rising".
- Mr. Exposition: Plays this role on The Choten's side.
- Shapeshifter Weapon: Transforms his arms into weapons to fight.
- You Have Outlived Your Usefulness: On the receiving end, solidifying the Choten's new partner no less.
"Kaijudo maybe your extracurricular activity but it happens to be my life."
"I compromised my values because I thought the Choten would restore our order, not attempt to make the most vile power grab in history."
The former Light Civilization Duel Master and former head of San Campion branch of The Order of the Kaijudo Duel Masters, Nigel is a traditionalist at heart. Like the Light Civilization creatures he is an expert on, he prefers structure, order, and tradition. He sticks by the Order's rules, and sees to it that the others stick by them as well. So you can imagine the kinds of conniptions Ray's mere presence gives to this stalwart old bean. Although he does listen to the words of the other Masters, especially Jaha, it never seems to be enough to sway him completely, as shown during the last handful of season 1 episodes when he switches sides to The Choten under the pretense of having some form of control when the Veil falls. That's what it boils down to for Nigel, control or be controlled. However at the end of season 2 Nigel defects from the Choten's side as he is unwilling to help or allow the Choten to enslave humanity. Nigel was unaware that the Choten wanted to take control of the human world along the Kaiju realm due to the fact that the Choten was deceiving him the entire time.
- Anti-Villain: Not as bad as The Choten, but he isn't a good guy either.
- Arch-Enemy: Isao seems to be this to Nigel given the animosity and a rivalry between them, especially now that Isao took over his position.
- Control Freak: Nigel definitely has shades of this with all those Stalker Spheres he employs. In fact, Jaha comments on how the rigid structure and order of the Light Civilization ultimately consumes Nigel after he joins The Choten.
- Disapproving Look: Nigel gives The Choten one at the end of "Unmasked" and again at the end of "Dueling Partners". He also expressed his disapproval at poaching Rumbling Terrasaur horns. He doesn't seem to be agreeing with the The Choten lately.
- Even Evil Has Standards: When The Choten tests the Spell of Liquid Compulsion on Suguru, even he(And Tiera) are appalled at how he is treating their former friend.
- In The Evolution Will Not Be Televised, he is disgusted when the Choten reveals his plan to take over Earth with evolved creatures, and promptly turns against him.
- Evil Counterpart: He used to be this to Isao, however now that Nigel has defected from he villains side he can no longer be classified as such.
- Face–Heel Turn: His belief that the Duel Masters have been "corrupted" leads him to joining The Choten out of delusion.
- Justified: Nigel is actually not in delusion and in a sense the masters were "corrupted" seeing as how Kaijudo has been changed irreparably by the kids and the other masters did in fact adopt their way except for Jaha, who simply accepts it but prefers the old ways, which is technically a perversion of what Kaijudo is and what it stands for.
- Freudian Excuse: Became a villain because his way of life was corrupted irreparable.
- Good Is Not Nice: While definitely not evil, he is probably the least sympathetic of the Masters. His Heel Face Turn exemplifies this.
- Heel Realization: Nigel had a shade of this at the end of "Caught in The Spotlight".
- Heel–Face Revolving Door: Starts out on the Masters side. Then defects to the Choten. Then defects from him when he realizes he's a nutcase.
- Heel–Face Turn: Nigel defects from the Choten's side upon realizing the Choten's real intentions which he kept Nigel in the dark about.
- Hero Antagonist: before he defected.
- The Last Straw: Sasha losing it at the San Campion High school dance is the last straw before Nigel defects.
- Nominal Hero: He's not intentionally evil and really only wants to protect humanity.
- Completely Missing the Point: But fails to understand that the Choten seeks to enslave humanity and has no problem killing everyone who defies his will, but seems to be getting the idea in recent episodes and is not happy with it. It is possible that the Choten may have been lying to Nigel throughout to make it seem like world domination wasn't his intention; this is hinted just before Nigel and Tierra duel.
- Pet the Dog: Jaha sitting and comforting Nigel after he is run over by Heller. Especially when she puts her hand on his and then smiles at him; you can tell by his expression that it meant a lot to him.
- Chavez thanking Nigel for saving them. Nigel then telling Chavez that while he doesn't show it he really does care.
- Ignored Confession: Nigel has repeatedly stated why he betrayed the Duel Masters but no one ever seems to consider it, except Jaha.
- In-Series Nickname/Affectionate Nickname: "Old Bean" used only by The Choten. This can be considered affectionate due to the fact that this British term is most often used an affectionate address by a friend. However given the animosity that The Choten showed toward Nigel in "Unmasked" this maybe only an act, especially since The Choten is a psychopath
- In the Back: Master Jaha knocks him out when his back is turned in The Rising part 2. Also by Saguru in Duel Hard.
- It's All My Fault: Nigel has blamed himself for last twenty years for what happened to Tierra, though she states that it was her own fault and not his. The Choten on the other hand disagrees and blamed Nigel fully for what happened.
- Jerkass: Big time. Sometimes, it really feels like he thinks it's his responsibility to criticize and complain about the kids.
- Jerkass Has a Point: Justified, however, when you realize that this behavior mostly only occurs when Ray and his friends are touching the creatures, or when they have traveled to the creature realm which is also forbidden; both of these things are something of which Nigel greatly disapproves of, obviously. Their constant disobeying and rule breaking is also a reason for Nigel's harsh attitude; this was a constant battle with the kids, especially seeing as how he himself lives for rules and order.
- Jerk with a Heart of Gold: For all his jerkassery toward the kids, he does mean well. He also has shown to care a lot about the other duelists as he only ever touched a creature in order to save them and he even states that while he doesn't' show it he does care. At least, until he joins The Choten, but even then he did try to get the others to join as well as The Choten had seemed to be winning, indicating some level of care was still there.
- In season 2 Nigel showed great care and concern for Ken when the Choten took control of him also stating that he was their former colleague and friend. He was also worried when Ken was sent flying by Ray's mana shield due to possibly being injured. He was also appalled when the Choten began to attack San Campion with his evo-creature army thus his defection.
- Knight Templar: Nigel has a shade of this.
- Light is Not Good: He pretty much embodies the worst of the light, especially after his betrayal.
- My Greatest Failure: The supposed death of the former Fire Master, Teira.
- Start of Darkness: It started at the kid's prom with one phone call.
- Tactical Withdrawal: In "Dueling Partners"; which he loathed having to do.
- The Dragon: To The Choten.
- The Strategist: Evil version.
- Took a Level in Badass: Compared to the first season, seems like it.
- Trash Talk: To Isao, BIG TIME.
- Meaningful Name: The -el suffix is commonly seen the names of angels, creatures of light. Brightmore is a lot less subtle.
- The Mole: Becomes one in "Heavenly Creatures"
- O.O.C. Is Serious Business: The kids are amazed when he not only agrees them, but decides to take them to the Light Civilization himself.
- Red Oni, Blue Oni: The blue to Chavez's red.
- To Be Lawful or Good: Of all the Masters, he is the one who has the hardest time accepting the kids' interactions with creatures and would rather just follow the traditional policy of never touching the creatures. Sadly, he chooses to be lawful and join The Choten.
- Well-Intentioned Extremist: He genuinely believes the Choten intends to bring order to both the Veil and the Human world by using drastic methods. When he finds out about the Choten's real plan, he immediatly defects again and tries to foil it.
- We Can Rule Together: Tries to convince the other masters to join The Choten so they could have some positions of power.
- Would Hurt a Child: He's more than willing to let the creatures he summons harm them.
- You Did Everything You Could: Tierra assures Nigel that it wasn't his fault for what happened to her but her own.
Ravu, Seeker of Lightning
- The Speechless: A trait most of the Duel Masters' creatures share.
- Suddenly Voiced: After getting injected with the Evolution serum.
- Took a Level in Badass: Evolution serum.
- Mechanical Life Form: At least he looks like one.
- The Stoic: To go with the Light Civilization ideal of calmness and order.
- Tractor Beam: Uses one to transport the group when they head for the Light Civilization.
- Undying Loyalty: To the Light Civilization rulers. So much so, that Ravu would readily disobey Nigel's orders to subdue Sasha and almost attacked Nigel hadn't Gabe calmed Sasha down.
- When he actually did speak however, he pleaded with Nigel to not force him to attack the heroes.
- My Master, Right or Wrong: Ra-vu has a shade of this as he does not outright try to disobey Nigel unless his orders conflict with his Undying Loyalty to Light Civilization which happened on only on one occasion due to Sasha; Ra-Vu also calls Nigel "Master".
- Voiced by: Jason Marsden
"Heh, call me Fingers, Ni Yah!"
An acolyte that the Ray, Gabe, and Allie meet during their tour of the Temple. He seemed harmless, if a bit skeevy looking, although it turns out that he was a mole planted in the Temple by The Choten as a means of acquiring the tablets of powerful creatures. Thanks to the new acolytes to be, this didn't pan out (though he did ended up freeing Flametropus for The Choten to snatch up later).After that, he becomes one of The Choten's minions with a name, and also resident Butt Monkey for the villain's side.
- Butt Monkey: Between himself, Heller, and disgraced Alakshmi, he gets the worse treatment of everybody. Though in his case, it's usually self-inflicted.
- Dirty Coward: He's not so cocky when he doesn't have a large creature to back him up.
- First-Episode Spoiler: His betrayal.
- The Mole: He started out on the Masters' side until it turned out he was working for The Choten all along
- Red Right Hand: His right hand is missing two fingers, hence his nickname.
- Smug Snake: As mentioned in Dirty Coward above. take away his creature, and he's nothing but a sniveling worm.
- You Have Failed Me: On the receiving end when he caused The Choten to lose an unique, evolved monster. A non-lethal version however; he is merely sent to the Darkness Realm to retrieve it instead of getting killed, and Alakshmi saves him eventually.
"One night, I saw some goons using gloves like this in a alley, so I, uh, appropriated this for their truck — tried it on. Managed to snag Dodo bird here through some hole in the air. Turns out I got a knack for controlling the stupid thing."
Heller was nothing more than a two-bit thief and con artist. Then he stole a Tech Gauntlet and somehow used it to summon Shaw K'Naw. He then went on a crime spree throughout San Campion, and instead of getting while the getting was good, he robs a museum and is subsequently defeated by the acolytes and, after Ray takes his Gauntlet, is later thrown in jail. There, he meets The Choten, who admonishes him for pettiness before offering him a job.From then on, he becomes one of The Choten's underlings, used primarily as the muscle because of his uncanny creature control abilities. It's arguable whether he or Fingers gets the least respect at any given time.
- Achievements in Ignorance: He had zero clues about Kaijudo when he stole the Tech Gauntlet, and even managed to summon Shaw K'Naw. It's why The Choten offers him a job.
- He gets another in "Extracurricular Activities" when he begins to commit crimes using the tip of a Rumbling Terrasaur's horn to cut through the veil for quick entrances and escapes. The Choten admits to being shocked that Heller came up with the idea.
- Bad Boss: The way he treated Shaw K'Naw…wasn't very pleasant. To the point that when finally freed, the creature was willing to kill him despite Light creatures ordinarily not being especially murderous.
- The Brute: Heller is all muscle, no brains. Hence his position as the Choten's muscle.
- Con Man: What he was before The Choten offered him a job.
- Dumb Muscle: Pointed out through implication by Alakshmi: The only reason he is there is because of his natural affinity with Kaijudo and his muscles.
- Kick the Dog: Shooting at Ray the first time he sees him. Then there is the time where he tries to kill Master Nigel with a truck...
- Laser-Guided Amnesia: Is eventually inflicted this by the Duel Masters to ensure he won't be on the Choten's side anymore.
- Heavenly Creatures reveals that it didn't stick, possible due to Nigel freeing him to The Choten as a peace offering.
The Armored Figure/Former master Tiera
- Voiced by: Kari Wahlgren(Armored form) Alanna Ubach(Tiera)
- Ambiguous Gender: Even though her voice is male while in the armor, she is eventually confirmed to be female during "Quest In Fire"
- Clingy Costume: Stuck in unremoveable armor for crossing the Fire Mystic.
- Distaff Counterpart: Blonde, power hungry, willing to manipulate people...small wonder she and the Choten are a thing.
- Evil Mentor: To Alakshmi.
- Playing with Fire: Though she cannot use it for the first half of season 2, her duel skills are fire-oriented.
- Unholy Matrimony: With the Choten.
- Unkempt Beauty: Aside from some frizzy hair and some small eye lines, she looks good for a woman stuck in armor for 2 decades.
- Was It All a Lie?: Although she does stop Alakshmi from obtaining her revenge and protects the Choten, she does ask him to stop chasing her since she helped her and is implied to care about Alakshmi on some level.
- Wild Card: Along with Alakshmi, now that the latter has freed her from Lord Skycrusher.
- Face–Heel Turn: Once free of her armor, she joins the Choten, her lover.
- You Have Outlived Your Usefulness: Subverted; while she stops Alakshmi from slaying the Choten, she is genuinely grateful toward her for helping her get rid of the armor, and asks the Choten to stop chasing her.
- Walking Spoiler: The Figures true identity is one massive spoiler.
Alexander "Alex" Carnahan
Voiced by: Andrew Kishino
Carny's perpetually disappointed father, and very wealthy backer for The Choten.
- Abusive Parents: To say he treats Carny like dirt would be putting it nicely. Almost everything he says to his son translates to, "You're worthless."
- Even Evil Has Loved Ones: He is horrible with his son, but he does show alarm when Carny has seemingly been sent to the Fire Civilisation Realm, and he does negotiate to save him from the Choten later, so he has to care to some extent.
- Self-Made Man: He is one if we can trust on what he said about building his fortune while fighting against Ray in "Gargle, Gargle, Toil and Trouble".
"You don't know anything about my father! He's a great man."
A bully who picks on Ray. Who just so happens to be the son of San Campion's Mayor, Alex. He and his dad don't have the best of father/son relationships.
- Bait the Dog: In episode Brainjacked It looks like he change when he stop one of his friends from bullying a student, but it turns out he only pretends to have changed, and later in the episode he ask for his dueling gauntle back saying he can help but choose to just run away.
- Evil Counterpart: Seems to be shaping up to this toward Ray.
- Hidden Depths/Freudian Excuse: His Jerkass attitude is actually caused by his father being even worse to him than he is to anyone else, while he tries to prove himself worthy.
- The Load: When he joins the Choten. He tries his best to prove himself and be useful, but for the most part, he fails and makes things worse.
- Ray: Are you sure you aren't on our side?
- Not So Different: With Tatsurion, of all people; both suffered Parental Neglect from their father who were considered "Great" amongst their kind.
- And also to Ray, which is probably the reason he picks on him so much.
- Training from Hell: Apparently this was his father's arrangement with The Choten. It was either this or Carny would have been "taken care of" by Heller and Fingers.
- Parental Abandonment: Has no mom in the picture and a verbally abusive and neglectful father.
- Politically Incorrect Villain: He outright mocks Ray's origins, and nearly everything out of his mouth towards Ray is an insult to his mixed race heritage.
- Too Dumb to Live: He very frequently makes he idiotic decisions that end up putting him further into trouble. The most famous case being when he summonned a Creature in an aquarium and made it fire rockets just to show off in front of his friends.
- "Well Done, Son!" Guy: More like '"You're Worthless, Son!" Guy'.
- What Happened to the Mouse?: Doesn't show up at all in The Rising.
"Shall I eliminate the witnesses, my Lord?"
Alakshmi was The Choten's top minion and right-hand female that he'd send out on all the important and sensitive missions....at least until Ray and his friends got into the swing of things and she kept presenting failure after failure, subsequently falling from her boss's good graces. She eventually lands a victory that makes it up to him big-time, until the season 1 finale where she fails to retrieve The Sword of Fiery Cataclysm from Allie and it ends up in Ray's/Infernus's hands, leading to The Choten tossing her off the tower platform they were on. She survives, going on to help Gabe and Gargle sabotage The Choten's Mana regulating device. When the Veil is reinforced, she willingly gets herself sent to the Fire Realm with Infernus and is last seen being carried away in a cage.Two thirds into season 1, she gets some handy advice she takes to heart that she really should be using Fire creatures, as they more befitting of her temperament.
- Anti-Villain: Type II and Type III, having been sold to The Choten as a child and having to impress him for the sake of her own life and later going through one hell of a series of tribulations after she defects and believing that what she is doing will restore honour to her family and save the world respectively. She's still a jerk, though. Eventually settle into a full on Anti-Hero role.
- Batman Gambit: Uses one to get rid of of Fingers by sending him on a mission she knows he will fail, hoping The Choten will punish him for that. And it works.
- Break the Haughty: When Ray finds her aboard Skycrushers Volcano Ship she's learned a hard lesson in humility. Even if she still has a good snark streak in her.
- Broken Bird: After being betrayed by pretty much everyone she has ever trusted, she decides Screw This, I'm Outta Here!, leaving the Duelist world behind.
- Co-Dragons: With Seneschal in season 1.
- Dark-Skinned Blonde: More like lavender.
- Dark is Evil: Ultimately subverted, however, since her true alignment is to Fire, and she eventually "reforms".
- Deadpan Snarker: Snarkiest of the human villains, including toward the good guys and her fellow minions.
- The Dog Bites Back: After The Choten pulled a You Have Failed Me on her in The Rising, she helps Gabe to defeat him by shutting down his mana source while he is controlling the Monarchs. She then dedicates herself to get her revenge him.
- Even Evil Has Standards: Even she is shocked when The Choten sends an army of Cyberviruses to brainwash all San Campion in The Rising.
- Also, after leaving the Choten, she despises those who go back on their word and makes it a point to never break hers. She is utterly disgusted to learn about Moorna's treachery.
- Evil Is Petty: Seems to have developed a petty grudge against Allie. This pettiness resulted in her You Have Failed Me speech from The Choten.
- Freudian Excuse: Heart of Darkness reveals that she had a big issue with her mother, who kept calling her a "spoiled useless daughter". She was recruited by The Choten in exchange for the promise to be trained into being able to defeat a Light creature that caused problems in her country.
- Heel–Face Turn/High-Heel–Face Turn: It took a lot of time to happen, but she finally joins the Duel Masters as an Acolyte at the end of Dueling Partner.
- Hot-Blooded: Although she tries to be cool and stoic, she's actually very driven and passionate. Something Megaria picks up on during her "Reason You Suck" Speech to Alakshmi. It also explains why she turns out to be more adept with Fire creatures than Darkness creatures.
- Humiliation Conga: Went from being The Choten's protegee to accumulating defeats, being told more and more of being a disappointment, being left in charge of the most degrading tasks such as cleaning the roof and mucking out the creatures pins, and eventually being downright referred by her boss as "increasingly useless". Then, when she once again tries to prove her value, she is betrayed by her creature, kidnapped by Megaria, forced to fight Allie who defeats her again, and gets a "Reason You Suck" Speech from Megaria.
- Ignored Enamored Underling: To The Choten, who grows increasingly snippy at her failures.
- Ineffectual Sympathetic Villain: Before switching to Fire Creatures.
- Ironic Echo: Alakshmi echos a variation of an earlier line Master Nadia gives to Ray, Gabe, and Allie when informing The Choten on newcomer Carny's progress.Alakshmi: No technique, no discipline — basically talentless...but he does have drive.
- Kick the Son of a Bitch: Almost; in Unmasked. She ends up with the Choten at her mercy and tries to have him gutted by Razorkinder Puppet, only to be stopped in time by Tiera. Considering how many times the Choten has proven how awful of a person he is, you almost feel sorry she didn't succeed.
- Laser-Guided Karma: She at least thinks her current situation as a slave in the Fire Civilization is the result of karma.
- Made a Slave: At least this is what Alakshmi believes her mother did to her, that is, sold her to The Choten for a quick buck. Though the fact that it came from Megaria, who got it from Alakshmi's mind to use against her in the first place, leads one to believe that the "truth" given is highly suspect.
- Happens to her after being caught by the Fire Civilization. Where she now works as a slave on Lord Skycrusher's volcano ship.
- Ms. Fanservice: She is a rather attractive young woman dressed in a jumpsuit, and season 2 has her ending up dressed in a Skimpy Fire Civilization outfit, then in Allie's mother's jeans.
- Older Than They Look: She looks like she in her 20s, but the Kaijudo wiki says she 16.
- Playing with Fire: It's revealed after her travel to the Darkness Civilization that she actually is more competent with Fire Civilization creatures than Darkness Civilization ones; While she keeps using Razorkinder Puppet, she also starts following that advice, and indeed proves competent with it, to the point where The Choten entrusts her with wielding The Sword of Fiery Cataclysm.
- Kill It with Fire: Plans on burning everything in her path in "Heavenly Creatures". She proceeds to do just that when the Heart of Light escapes her.
- Psychotic Smirk: She is quite fond of this expression.
- Reincarnation: She isn't one, but seems to believe in it, twice wondering if the constant intervention of the heroes and her imprisonment are punishment for a past life's misdeeds.
- Revenge: She joined The Choten to be trained so she could exact revenge on the Light Civilization creature that allegedly attacked her homeland. After being betrayed by him, she now wants revenge on him.
- Ship Tease: weirdly enough, to Ray; after he saved her from the Fire Civilization, he became something of a Morality Pet to her. By the time of Unmasked, she admits that he is the only person who has never betrayed her, in a very soft and gentle voice, and gives him a kiss on the cheek before disappearing.
- The Rival: To Allie. Also doubles as a sort-of Evil Counterpart.
- Throw the Dog a Bone: She finally succeeds in coming back in The Choten's favors at the end of Heart of Darkness when she brings him back Fingers, the Shield of Unity, Magaria's cape, and his evolved creature. She also realizes, thanks to Megaria, that she is using the wrong type of Civilization creature and she should be using Fire Civilization creatures instead.
- Token Lesser Evil Teammate: Granted, she definitely isn't a kind person, but she is still the most sympathetic character on the villain side beside Saguru, being a Well-Intentioned Extremist with an actual Freudian Excuse, whereas Fingers and Heller are both huge Jerkasses with no redeeming qualities (and let's not even talk about The Choten himself).
- Took a Level in Badass: Once she switches to Fire Creatures.
- Villain Decay: An interesting case. She starts out as the menacing and competent henchwoman to The Choten and lasts that way until about episode 9 The Taken. After that, the losses start piling up until even Fingers starts making fun of her. Then The Heart Of Darkness, where she sinks even lower, being captured by Megaria and forced to fight, and lose, to Allie. Then the aforementioned Throw the Dog a Bone happens, and she's back to being menacing and competent again.
- Well-Intentioned Extremist: She does believe that The Choten has a noble goal beyond just ruling the world.
- You Have Outlived Your Usefulness: The Choten finally tires of her for good during "The Rising", tossing her away down a ship hatch. She lives, assists Gabe, and sets off on her own. She's last seen being carried off in a cage in the Fire Realm.
- Wild Card: She hates the Choten for tossing her aside and betraying her and wants revenge, but refuses to join Ray and the others. She and the Armored Duelist are on their own side, and no one knows what they will do now that they're free.
- Now that Teira has betrayed her and joined the Choten, she appears to have given up completely, just wanting to be left alone.
- Woobie, Destroyer of Worlds: By the end of the series, its hard to not pity her.
- Would Hurt a Child: Ray and his friends are younger than her and she has on more than one occasion tried to get rid of them.
"Ooh, what are we drawing tonight, Mr. Talent? Ooh, Ray, scary monsters. Again. What about, uh, Superheroes or one of those Change-O-Bot things?"Ray's loving, doting mother. A single working mom who takes care of both Ray and her father-in-law, she tries her best to be supportive of whatever Ray does, even if she has reasons to be a bit wary. Turns out that her wariness is in fact well founded.
- Secret Keeper: For the Kaijudo council.
- Ship Tease: Her and Allie's father seem to have grown rather close during their stay at Allie's house.
Grandpa Raiden Okamoto.
- Voiced by: Andrew Kishino
- Cool Old Guy: Compared to his brother, Issao.
Portia and Maribel
- Portia Voiced by: Alanna UbachMaribel Voiced by: Grey DeLisle
Two mean girls, sometimes Allie's friends.
- Alpha Bitches: Like Carny, almost every word they say is condescending towards someone less popular.
- Foils: The duo serve as one to Allie, showing what would happen if Allie wasn't as Spoiled Sweet as she is.
- Jerkass: Especially Portia.
- Morality Pet: Allie occasionally tries to function as one to the two, but it never really works out.
- Those Two Guys: Always seen together and never apart.
- Voiced by: Alanna Ubach
"At least I don't have to buy my friends."
A girl in Ray, Gabe, and Allie's class. Although she comes from a very poor family, as is noticeable from her threadbear, thrift store-bought clothes and her "wear your hair as-is" style, she's quite sharp and surprisingly good under pressure. She managed to hold her own against the Dream Pirate that Ray was using to scare her, Allie, and Portia and Maribel at a slumber party by fending it off with a fireplace poker. She is endlessly and cruelly teased for her poverty by Portia and Maribel, especially Portia.
- Little Miss Badass: Grabs a kindling rod and starts sword fighting a Darkness Creature.
- Turns out she also has natural proficiency in Kaijudo. Hence her being granted Acolyte status.
Saguru/Ken Takahashi Okamoto
- Voiced by: Andrew Kishino
"We...were Duel Masters."
When Ray and Gabe travel to the Fire Civilization to rescue Allie, they are rescued by this strange man at the gates of Blastforge City. Believing himself to be a Nature creature, he was confused to find others like him. Very agile, with command of a Light/Nature hybrid creature who lives in his empty right eye socket, he helps Ray and Gabe get into the city.Who he really is and where he came from is a mystery, even form himself. Which is why he's doing services for The Choten in barter for his memories.
- Affably Evil: He has nothing against either the Duel Masters or their acolytes; he only opposes them by necessity. In fact, he even once apologized to Ray and his friends for backstabbing them.
- Anti-Villain: Type IV
- Back from the Dead: ...SORT OF. At the end of Season 1, Homunculon is forcibly evolved, he is pushed off a building, and lands on a crate, putting him in a coma and banishing him (because he's effectively fused with Homunculon at this point) to the Creature Realm. He is then found by Finbarr, who reunites him with Ray and the protagonists.
- Body Horror: Happens to him when Homunculon is mutated by The Choten and fused to his body.
- Easily Forgiven: By Ray, regardless of the number of time Saguru betrayed him or his friends. Even when he tells himself and his friends that he won't trust Saguru again after he leads the kids into a Mana dead-zone and kidnaps Sasha for her Heart of Light, after learning the truth from his mom and figuring out Saguru is his dad, when next they meet, he forgives Saguru completely.
- Even Evil Has Standards: He's truly shocked when The Choten has no scruples trying to kill children to get the Heart of Light.
- Fallen Hero: He originally was the Nature Master before Kimora.
- Fusion Dance: Due to the fusion Homunculon is continuing to fuse and spread with his body, along with their minds starting to fuse.
- Giant Spider: Becomes a humanoid one as the result of his fusion with Humonculon with Spider Limbs as the hybrid's primary mode of locomotion.
- Heel–Face Turn: After he regains all of his memories.
- I Was Quite a Looker: He's not ugly per-se. But, back when he was Ken Okamoto, he was a straight up Bishounen.
- Laser-Guided Amnesia: How The Choten keeps bargaining with him.
- Light is Not Good: While he is fused with Homunculon, a Light (and Nature) creature, which makes him violent and animalistic.
- Possibly Justified by the fact that both were injected with The Choten's evolution serum which triggered the fusion in the first place.
- Luke, I Am Your Father: Specifically, Ray's.
- Manipulative Bastard: Not as much as The Choten, but he is still willing to do this to get what he wants.
- My God, What Have I Done?: When he regains his memories and realized how he has betrayed and used his own son.
- The Symbiote: He has a small Nature/Light creature living inside his right empty socket as a replacement for his missing eye. The creature can get out of his socket and assist him.
- Tears of Remorse: Sheds these at the end of Betrayal upon the weight and realization of his actions and fate coming down on him.
- Token Good Teammate: He isn't exactly a nice guy when we meet him, but he is in no way evil and works for The Choten because he is being blackmailed.
- Unwitting Pawn: To the Choten
- Wild Card: He makes it clear that he is not on The Choten's side, and only helps him so he can get parts of his memory back. At several points, he would team up with the protagonists, or even outright help them as a payment for a debt he has toward them or just because it's in his interest.
- Now he's gotten all of his memories back, and is horrified by The Choten's plan and what he has been tricked into doing.
Homunculon The Blaster
Saguru's creature, a half Light Civilization and half Nature Civilization hybrid, that lives inside his empty right eye.
- Body Horror: It's legs mutate into partial armor that covers some of Saguru's face and arm after The Choten used his evolutionary serum on it. Revealed in season two that the mutation is still spreading.
- Fusion Dance: See Saguru's for details.
- Cyber Cyclops: A green eyed one.
- Eye Beams: Can shoot a beam from its eye.
- Light is Not Good: Is a Light and Nature dual type with a mindless, ferocious personality.
- Possibly Justified: See Saguru's for details.
- Mechanical Monster: A arachnid based one.
- Mixed Ancestry: Half Nature Civilization and half Light Civilization.
- All Webbed Up: Uses webbing to heal others or to grab foes.
"I have granted the half-breed traitor the right to fight for his life. Let no one ever claim that Lord Skycrusher is without mercy."
The leader of the Fire Civilization in season 1, with the official title of Regent, and the initial owner of The Sword of Fiery Cataclysm.
- Abdicate the Throne: He (very wisely) hands rule of the Fire Civilization over to Infernus the Immolator when he returns.
- Arch-Enemy: Later episodes have him develop a major grudge against Tatsurion, to the point he keeps chasing him even after Infernus freed him of his criminal status.
- Despair Event Horizon: In Fallout, the devastation of the Fire Civilization causes him to fall into this for most of the episode. Ray eventually manages to get him out of it, though.
- Enemy Mine: He teams up with both Tatsurion, the Duel Masters and Light, Nature and Darkness Civilizations to stop the Choten's plan in Fallout.
- Evil Overlord: While seemingly not as sick as Megaria, he still isn't the nicest leader. The Gladiatorial games he holds are proof of that.
- Flaming Sword: He was the owner of The Sword of Fiery Cataclysm at the beginning of the show. It's then taken from him by Saguru, and eventually ends up in the hands of Infernus.
- Noble Demon: He definitely isn't a nice person, but he does have some standards. During his negotiation with Lord Finbarr, he agreed to let him read his mind to confirm he wasn't lying, stating he had nothing to hide, and was pissed when still accused of lying. Similarly, when Tatsurion saved his life, he (very begrudgingly) reported it to Infernus to pay his debt. He also seems to truly care about the Fire Civilization's well-being, as its devastation pushes him into a Despair Event Horizon.
- Undying Loyalty: To Infernus.
- However his hatred of Tatsurion is enough to make him go against Infernus' decree of Tatsurion being freed of any criminality.
Megaria "the Collector", Empress of Dread
- Voiced by: Rachel Robinson
"You're a very bad girl. Allison."
Refers to herself as Empress, Megaria is one of the powers vying for control of the entire Darkness Civilization, along with her sisters. To that end, she amasses anything that she feels will help her stake her claim, like a stray Kaijudo Duelist or two.As her name suggests, Megaria is a packrat of sorts, always collecting odds and ends that she finds valuable. The nearby natives are so scared of her that they often give her gifts (like Scaradorables to eat) and trinkets to appease her. And as one might guess, someone like her can never be appeased for long.
- Badass Cape: She owned The Cape of Dark Illusions before it was taken from her by Alakshmi.
- Bad Boss: "You let an imposter through. Report to the Dungeon for correction."
- The Baroness: And since she's trying to lay claim to the entirety of the Darkness Civilization like her sisters, it's a pretty safe bet that they all are Baronesses too.
- Berserk Button: Being reminded that Jaha apparently killed her brother and is now using his hand as a stick.
- Black Eyes of Crazy: She has black sclera and pupil-less white irises.
- Combat Tentacles: Her hair is one.
- Corrupt the Cutie: Constantly tries this on Allie. Also implied to have been attempted on Jaha in the past.
- The Dreaded: By many natives of the Darkness Civilization.
- Evil Mentor: She is obsessed about being one to Allie.
- Evil Overlord: Ruler of the Darkness realm, and not a benevolent leader either.
- Facial Horror: Whenever she is wearing her illusion mask.
- Faux Affably Evil: Has a serpents tongue and a cheery "I'm your friend" personality. She's also an unrepant manipulator and asshole.
- Mind Rape: On both Allie and Alakshmi. Though Allie displayed a good resistance to it.
- One Bad Mother: She likes to refer to herself as a mother and assume other people's mother's appearance to torture them.
- Out-of-Character Alert: When posing as Allie's mother, she says exactly what Allie had always wanted to hear from her… which immediately allows Allie to see through the trick.
- It's implied that the way Megaria manipulates her victims is by using what's inside their own heads, like their insecurities and their greatest wishes and fears, which is precisely how Allie saw through it. This in turn implies that when it happens to Alakshmi, there's a chance that what her "Mom" was saying to her wasn't true, but was what Alakshmi thinks is true.
- "Reason You Suck" Speech: Delivers one to Alakshmi.
- Villain Team-Up: With the Choten.
Lord FinbarrOne of three creatures known as Cyber Lords, Water Civilization creatures who govern the Water capital. He's as coldly logical as the technology he commands.
- Back-Alley Doctor: It's never stated as to whether he has any medical training or not, however after he was exiled he worked to stop Ken's increasing mutation with Light Civilization technology but only had limited success in slowing it down.
- Badass Adorable: He looks like a little blue baby in a mech suit. He's also a very dangerous Creature, in a high position of power.
- Berserk Button: Don't mention he looks like a baby.
- Blood Knight: It doesn't take much for him to resort to violence as the solution to a problem.
- General Ripper: His position on the Council of Logos is that of a General. And he isn't afraid to break out the big guns.
- Government in Exile: He was a member of the Council of Logos which governed the Water Civilization, until he be came a fugitive.
- Reasonable Authority Figure: Blood Knight tendencies aside, he can actually be this. He is one of the first Cyber Lords to notice something is wrong when King Tritonus (actually controlled by the Choten) starts pushing the Water Civilisation in a pointless war.
- Also, when he finds Ray's father in a comatose state at the end of Season 1, Finbarr saves him and manages to bring him back. He is then allowed to reunite with Ray early in Season 2, for the minor price of stopping one of the Choten's schemes.
- The Spock: Like all Cyber Lords, he tends to always follow what he believes to be the logical choice.
Alakshmi's go-to creature early in the series. A disturbing little puppet creature, with sharp claws and a wicked personality.
- Black Eyes of Crazy: Has black sclera and is certainly psychotic.
- Creepy Doll/Perverse Puppet: A combination of the two. Befitting a creature from the Evil Toy classification.
- Chronic Backstabbing Disorder: It has no real loyalty for Alakshmi and gleefully betrays her to Megaria when they go in the Darkness Civilization. Alakshmi later forces it to submit to her again.
- Dark is Evil: Razorkinder is evil from its strings to its claws.
- Giggling Villain: His only vocalization is a disturbing, inhuman giggling.
- Marionette Motion: And it's damn creepy.
- Ominous Music Box Tune: Accompanies it wherever it goes.
- Take Our Word for It: Whatever's behind his mask, it's probably even creepier than his regular look, judging by the protagonists' reaction to it.
- Slasher Smile: While the face of his mask is... weird, to say the last, it does look a bit like this.
- Wolverine Claws: His hands are made with these.
- Voiced by: Freddy Rodriguez
"Countless moons have I searched for my people, fighting to survive until I can see them once more. My people must be in hiding, as I am. When I find them, together we will end this war in victory. Yes, I will find them."
A Nature Creature that was accidentally trapped in the human realm when the Veil was created and ended up living there for years. Believing himself to be the only survivor, he kept fighting the humans, unaware of the fact the war was long over. When confronted by the Duel Masters, he fought them initially, until Ray was able to convince him to let him show him the Veil and join with his kind. After this, he frequently appears as Ray's second favorite choice for a summon after Tatsurion.
- Carry a Big Stick: His Weapon of Choice.
- Crazy-Prepared: Has the ability to summon smaller creatures that can play various roles. He frequently takes advantage on this by placing them everywhere as traps.
- Genius Bruiser: Almost as big as Tatsurion, probably just as strong and a fearsome fighter. Also a skilled tracker with strong Crazy-Prepared tendencies and perfectly capable of outsmarting his opponents.
- I Shall Taunt You: Uses this strategy against Tatsurion during their fight in the Nature Tournament.
- Last of His Kind: He thinks he's this, when in fact his people are just in another dimension.
Moorna "The Vengeful", Gatling Dragon
"I knew I smelled your traitorous stink, Tatsurion. I almost missed you."
Tatsurion's dragon sister. Much like most of the dragon side of his family, Moorna considers Tatsurion a dishonor to their species and is on a quest to eliminate him.
- Big Sister Bully: Taken to the most extreme logical; she wants to kill Tatsurion.
- Cain and Abel: Cain to Tatsurion's Abel.
- Didn't Think This Through: She's too much of a hothead consumed by hatred of Bob to think up a good plan of trapping him, which Alakshmi points out.
- Evil Cannot Comprehend Good: She brought Tatsurion and his mother to Brutalus' lair, expecting her former betrothed to kill them and restore his honor. It didn't occur to her for a second that Brutalus didn't blame Tatsurion for the loss of his wing and considered revenge as pointless.
- Evil Is Petty: Tricks Bob into going on a hunt as if she is finally accepting him as a brother. Turns out Moorna brought him to watch her burn down Bob's Quillspike home.
- Fantastic Racism: Hates Tatsurion for dirtying her noble bloodline and looks down on anyone not a dragon.
- Instant Awesome, Just Add Dragons: She thinks she's awesome, anyway.
- Jerk Ass: Most Dragons have a jerkish streak to them, but Moorna is just a prick to the core. A snide, racist, spiteful excuse of a creature.
- More Dakka: Why do you think they call her Gatling Dragon?
- Never My Fault: Yes, Moorna, it's completely Tatsurion's fault if he crippled your betrothed while trying to defend his family that you tricked everyone into attacking just to hurt him. You know it's bad when even said betrothed thinks she is wrong.
- Proud Warrior Race Girl: As is true with most dragons.
- Voiced by: Dee Bradley Baker
- Badass Beard/Beard of Sorrow: After his exile.
- Even Evil Has Standards: Even before becoming a better person, he was genuinely shocked to learn Moorna had them raid Tasturion's Quillspike family. Later, he admits that, had he known sooner, he would have refused to begin with.
- The Exile: He was forced into seclusion after losing a wing. A dragon who cannot fly is shamed by the community.
- Handicapped Badass: Thanks to Tatsurion, his left wing is too damaged to allow him to fly, making him a cripple by Dragon standards. He still seems quite strong and capable of handling himself in a fight.
- Misery Builds Character: His years in exile helped him realize the Dragon's "Code of honor" is a total crock. And made him a better (If still bitter) creature.
- Non-Indicative Name: He is anything but a brute. In fact, he is probably the nicest full-dragon character in the show so far.
- Aesop Amnesia: Even though they had learnt to respect him in their first appearance, Razorhide and Prickleback start mocking him again in his next appearance.
- ...not really. When they next meet, most of what they do in the way of mocking is nothing worse than a usual sibling relationship, until he reveals he has wings - very Dragony trait, not very Quillspiky trait.
- Jerk Ass: Razorhide and Prickleback aren't the nicest guys with him...
- Reasonable Authority Figure: Razorhide and Prickleback are kinda dicks to Tatsurion, but their mother Headstrong Wanderer is much nicer and more comprehensive.
Ambassador Gregoria, Princess of Malevolence
Sister to Megaria, and just as underhanded and double-dealing as she is.
- Ambadassador: She acts as ambassador between the Water and Fire civilization negotiations. She's also a Dark Lord, among the most powerful of the Darkness Creatures.
- Arson, Murder, and Admiration: She frequently likes to compliment people's ability to manipulate and deceive people (Allie most of the time), even when she is the target of the deception.
- Badass Boast: "We will find a way! Darkness always finds a way!"
- Cool Sword: Her Sword of Trailing Darkness.
- The Dragon: To Queen Kalima during the invasion of San Campion by the Darkness Civilization.
- Enemy Mine: With The Duel Masters and Sasha in Fallout
- Fire-Forged Friends: Seems to have develop into this with Sasha at the end of the episode.
- Good Counterpart: Debatably to Megaria. She is every bit as deceptive as her, but, unlike her, she seems to have Darkness Civilization's best interests at heart, and eventually teams up with the Duel Masters rather than the Choten.
- Troll: When interacting with Sasha, she intentionally messes with her by invoking a paradox through her statement that she is incapable of telling the truth.
- Whip It Good: Her favorite tool.
- Bullying a Dragon: Teira thought it was a good idea to try to control him. She learned the hard way how wrong she was.
- Elemental Embodiment: Manifests as the element of the Civilization he appears in. There was initially believed to be one Mystic for each element, when in truth there is only one Mystic who manifests through all five elements.
- I Have Many Names: Though called the Fire Mystic when first introduce, he reveals to Raiden that he belongs to all Civilizations, but none of them.
- Secret Test of Character: To Raiden who he teaches through his cryptic words. Also to Teira, who he imprisoned in the armor so that she could learn to be humble and not hunger for power.
Tropes to the group as a whole:
- Kaiju: All of them are prime representatives of the "Kaiju" in the term "Kaijudo"
- Large and in Charge: The Monarch's are all the size of small buildings, and the respective true leaders of their realms.
- Mind Control: All of them get this inflicted on them, even if for only a short time, in both episodes of The Rising.
- Royals Who Actually Do Something: Not only are they all badass, but they also appear to be quite active in their role. As soon as they are freed and get back to their respective Civilizations, things are quick to move.
- Sealed Badass in a Can: Have been slumbering on earth for ages.
Infernus The Immolator
"Send word to all Fire Creatures: We go to WAR!"
- Anti-Villain: He has really good reasons to hate the Masters.
- Cool Sword: His artifact, the Sword of Fiery Cataclysm, is a large Flaming Sword. he gets it back in The Rising.
- Enemy Mine: Despite his grudge toward the Duel Masters, he agrees to fight alongside Ray against The Choten, though he makes it clear that the alliance will end with the battle.
- Reasonable Authority Figure: He eventually grants Tatsurion a full pardon and Dragon rights for saving Lord Skycrusher.
- Voiced by: James Arnold Taylor
- Badass Boast: Delivers one to The Choten when he finally gets freed:
- "You have enslaved and humiliated Tritonus, violated my mind, and created havoc in my name; For this, I WILL OBLITERATE YOU!"
- Combat Tentacles: Obviously.
- Cool Helmet: Though he is the only one to have stayed quite long without it, his artifact, the Helm of Ultimate Technology, is one.
- Cyber Cyclops: Has a single glowing eye, and, like most Water creature, probably is partially cybernetic.
- The Dog Bites Back: He is not happy about the Choten manipulating him when he finally gets freed.
- Everything's Squishier with Cephalopods: Looks like a a giant, jellyfish-like creature.
- Mind Control: Unlike the other Monarchs, the Choten retains a control over him upon ending up in the Veil, and uses him to instigate a war between all civilization so he can make a profit of it.
- Out-of-Character Alert: Sort of. When the Choten starts using him to manipulate the Water Civilization into a war against the Fire Civilization (and later other civilizations as well), the Cyber-Lords immediately start questioning the logic behind his decisions. When they get arrested for this, Lord Finbarr quickly figures out the truth and asks for the Duel Masters' help.
- Breath Weapon: Uses one to help destroy the Veil in the Rising.
- Fertile Feet: A little too fertile, as his return overcharges the Nature Civilization with Mana. While this has positive effects on some of them, such as causing plants to grow and farming to prosper, it also causes vegetables-like creatures to grow stronger and more aggressive (though they eventually learn how to control it).
- Horned Humanoid: With a very large definition of "humanoid".
- Luckily, My Shield Will Protect Me: His artifact, the Shield of Unity.
- Multi-Armed and Dangerous: Four-armed to be specific.
- Our Giants Are Bigger: And in this case, really bigger. As Allie describes, he's "A mountain with horns."
- The Unintelligible: Seems incapable of speaking words, so he simply roars.
Queen Kalima of the Infinite Dark
- Voiced by: Alanna Ubach
"We Darkness Creatures are rather susceptible to changing our mind. Do not tempt me, human."
- Badass Cape: Her artifact, the Cloak of Dark Illusion. Allie gives it back to her as a price to stop the invasion of San Campion.
- Breath Weapon: Uses one to help destroy the Veil in The Rising.
- Dark is Evil/Dark is Not Evil: Walks this line, and eventually begrudgingly settles on the latter.
- Evil Sounds Scary: Her normal voice, while shrill and bird-like, is undoubtedly female. However, when she wants to sound threatening, her voice gets far deeper.
- Glowing Eyes: Purple glowing to be specific.
- Obviously Evil: Invoked. She doesn't make any secret of the fact that Darkness Creatures are known to be deceptive, and frequently warns the other characters about it. Ironically, she actually is more neutral than really evil.
- Our Dragons Are Different: Looks like a large, bat-like dragon with a mask-like beak.
- Reasonable Authority Figure: Sort of. She's willing to free Ray and company after they help protect her realm, but she was still tricked into restarting the war between Light and Darkness.
- She also agreed to call off her invasion of San Campion if given back the Cloak of Dark Illusion, even though, as a Darkness Creature, it would have been fully within her nature to deceive Allie.
Eternal Haven Angelic Liege
- Flying Saucer: Looks like one.
- Frickin' Laser Beams: Uses one to help destroy the Veil in The Rising.
- Gender Reveal: Due to her machine-like appearance, we don't learn she actually is a female until her second appearance, where she is explicitly referred to as a Queen.
- Make Me Wanna Shout: The Angel-like faces under her body can be used to generate sonic attacks.
- Order Versus Chaos: Represents Order.
- Reasonable Authority Figure: She can take quite drastic or brutal decisions, but she will listen to her subjects' opinion and consider following their suggestions if they give good enough arguments. In Clash of the Monarch, she tries to prevent Infernus and Tritonus from gutting each other before getting taken over by Brightmore.
- The Unintelligible: Express herself in music-like sounds...
- Intelligible Unintelligible: ... But other creatures do understand her.
- Well-Intentioned Extremist: In "Exchange Program", she tries to help humanity to become more serene and orderly... by abducting humans and brainwash them to remove their free will. Sasha and Gabe eventually manages to convince her to go for a more peaceful approach to study humans.
- You Will Be Assimilated: Attempts to make the human world "orderly". Though according to Sasha, this was option 2. Option 1 was destroying humanity.