[[folder:Yaiba's Group]]
!!Yaiba Kurogane
!!!Voiced by: Creator/MinamiTakayama


The young protagonist, Yaiba is a strong-willed, easy-going but often cocky kid who was trained by his father Kenjuuro in order to become a great Samurai. After leavng the jungle and returning to Japan, he starts his adventures and the struggle against the wicked Onimaru. Apparently, Yaiba is the chosen warrior able to wield the Raijin Sword without being [[BoltOfDivineRetribution zapped]]. Trained by UsefulNotes/MiyamotoMusashi and with the help of his friends and various magical powers, he fight off the menaces that threat the Earth. As the series proceed, he slowly matures.

* AirJousting: Whenever he has to face an enemy capable of flight. Usually a courtesy of his pet vulture, Shonosuke
* AncestralWeapon: The swords he use tend to be really old and powerful. In the last arc he's equipped with his father's Bokken ([[WoodenKatanasAreEvenBetter wooden katana]])
* AnimeHair: A classical example, inherited by his father.
* AttackOfThe50FootWhatever: He can use the power of the Giant Orb to increase his size
* BadAssBoast: Ok, maybe not really badass, but he surely can boast
* BarrierWarrior: With the Ryujin Sword
* BattleAura: When using a magical sword. [[spoiler: Also the ''Toujin'', which allows him to storm the opponent with a flow of invisile slashes.]]
* BigEater: Though mostly early on, as later arcs tend to shift to a more serious tone.
* BlowYouAway: When using the Fujin Katana [[spoiler: and the Supreme King Sword]].
* BrattyHalfPint
* ButtMonkey: Often
* CallingYourAttacks: Each and ever attack.
* ChickMagnet: At school he seems to be quite popular with girls...
* CombatPragmatist: He's not above tricking his foes, inventing new techniques on the spot and so on. Justified, since he learned by Musashi himself. And also because his enemies are not nice guys.
* CoolSword: First he gets to wield the Raijin Sword, which later learns to turn into the Ryuujin Sword with the Ryuujin Orb. Eventually he dual wields it with [[spoiler: Onimaru's discarded Fuujin Sword]] and later merges it to obtain the [[spoiler: Supreme King Sword]].
* CurbStompBattle: He delivered one against the revived Batman in the Onimaru's Fortress Arc.
* DeathOfAThousandCuts: His One-shot Doshaburi Giri attack (lit. Deluge Slice) consist in tossing several kitchen knives at the foe from above
* DemonicPossession: When he loses control of the Raijin Orb he turn into a PsychoElectro Oni. He manage to master it later and avoid possession.
* TheDeterminator: A EarthShatteringKaboom is the least you need to stop this little guy!
** Brought to extreme levels in the last arc, where he [[spoiler: manages to force the far more skilled Soshi to give up by ''sheer determination''.]]
* DiagonalCut: His Kaminari Giri (Lightning Slice) attack, which leaves a lightning-shaped trail.
** Also his Juumonji Giri (Cross Slice), which doubles with PowerGlows and DualWielding
* DualWielding: during the Pyramid Arc.
* ElementalPowers: He wielded many during the Ryujin arc, including: MakingASplash, KillItWithFire, DarkIsEdgy and KillItWithIce
* EverythingsBetterWithSpinning: His Senpuken (Whirlwind Sword) consist in removing the Thunder Orb from Raijin's Sword and use the hole left to make it spin at great speed. Also the Kazaguruma (Pinwheel) attack is this.
* {{Expy}}: Acording to Aoyama himself, Yaiba was modeled after Teppei Uesugi from ''Ore wa Teppei''
* TheHero
* HeroicBSOD: After his defeat at the hand of Demon Onimaru. [[spoiler: And later after being almost killed by Gekko]].
* IdiotHero: He's quite a dumbass, but can come up with smart strategies.
* InfinityPlusOneSword: The sword of Ryuujin. [[spoiler: The Supreme King Sword and, in the ending post- TimeSkip, the {{Kusanagi}} sword.]]
* JerkWithAHeartOfGold
* LightEmUp: [[spoiler: The Supreme King Sword. Apparently the Kusanagi blade in the stinger, which can fly fast enough to reach Mars from the Earth in mere seconds.]]
* NoodleIncident: [[spoiler: In the epilogue he and his friends (Musashi, Kagetora and Shonosuke) ended up on Mars where they were attacked by a monstrous demon alien. Oh, and he acquired the Kusanagi sword from Okinawa too.]]
* KidSamurai
* LetsGetDangerous: Whenever he gets serious in battle.
* LightningBruiser: Really really fast.
* LovableSexManiac
* MadeOfIron: Jeez, this boy is really something.
** HarmlessElectrocution: Survives being hit by a lightning bolt, which makes Musashi realize that he's ready to master the Raijin Sword.
* MeaningfulName: Translated, and [[NameOrderConfusion accounted for name order]], his names means Blade Iron.
* [[NeverRecycleYourSchemes Never Recycle Your Techniques]]: Whenever his current attack/fighting style isn't good enough, he soon discard it. [[spoiler: However he uses his very first technique before dealing the final blow to Onimaru.]]
* NiceJobBreakingItHero: His Jerkassness is the main reason why Onimaru decided to resort to the Fujin Sword to beat him. Also at the end of the Ryuujin Arc.
* NoSocialSkills: He is not good at handling everyday situations. He grew up in a jungle with only his father to learn from. He can however [[SpeaksFluentAnimal speak with animals]].
* PintSizedPowerhouse
* RedOniBlueOni: Red Oni to Onimaru's Blue Oni.
* ShockAndAwe: When wielding the powers of Raijin he can shoot electrical beams from his sword and electrify enemies.
* StupidGood
* SuperMode: He got several of them, usually using the power of the currently wielded sword.
* SwordBeam: When using one of the magical blades.
* ToBeAMaster: His goal is to become the strongest in the world.
* UnstoppableRage: Briefly during the Ryujin Trials. [[spoiler: Also after Emerald and Ryujin's deaths]].
* XRaySparks: Every episode's eyecatch when he gets zapped by lightning.

!!Sayaka Mine
!!!Voiced by: Creator/KotonoMitsuishi

Sayaka is the daughter of Raizo Mine, an expert kendoka and old rival of Yaiba's father, Kenjuro. At first she sees Yaiba as an annoying brat, but their relationship improves as the series proceed and she travels with the young samurai in his journey to defeat Onimaru. She also carries the [[TeamPet Sea-Cucumberman]] with her. Later in the Kaguya arc, it's revealed that she's [[spoiler: the descendant of Taro Urashima and Princess Oto, and thus the new "Dragon Maiden", the Priestess of Ryujin and the key to unleash Kaguya's true form.]] [[spoiler: In the last arc, she manage to wield the Water Demon Longsword and use its powers, and later, in order to stop Orochi's rampage, has Kaguya sealed into her body... and manage to ''restrain her and slowly change her heart''.]]

* AwLookTheyReallyDoLoveEachOther: She and Yaiba quarrel quite a lot, but once in a long time they share tender moments.
* BarrierMaiden: [[spoiler: As the "Dragon Maiden" whose LifeEnergy Kaguya needs the most, and the descendant of two legendary figures from Japanese Myths (Taro Urashima and Otohime).]]
* BeautyIsNeverTarnished: Granted, she doesn't get in many fights herself..
* ClingyJealousGirl: Towards Emerald in the Pyramid Arc
* DistressedDamsel: Happens quite often, but only in the earlier arcs. She upgrades to an ActionGirl
* HeroicSacrifice: At least three times, [[spoiler: the first one in the fifth trial of Ryujin, the Rope of Fate, in order to show Yaiba the right one. The second time when she decided to go with Gekko in order to save Yaiba's life. Then, she accepted to have Kaguya's Ghost sealed into her body in order to force her to help Yaiba against Orochi and Onimaru]].
* MakingASplash: [[spoiler: When she uses the Water Demon Longsword.]]
* PaperThinDisguise: During the Kojiro arc, in order to escape some {{Mooks}} she put on Sunglasses, an earring and a fur hat and behaved like a Japanese comedian. It worked ''even with her mother!''
* PluckyGirl: One cannit say this young woman gives up easily.
* SailorFuku: albeit with a long skirt.
* SheIsAllGrownUp: [[spoiler: After the three year timeskip in the epilogue.]]
* {{Tsundere}}: Type 2. She's a rather nice kid, but Yaiba can easily set her off.
* TokenGirl
* TookALevelInBadAss: [[spoiler: Well, she managed to keep Kaguya inside her body, and in the end she even made her make a HeelFaceTurn!]]

!!!voiced by: Creator/HisaoEgawa

Yaiba's pet Tiger, he's just a fat, gentle tiger and behaves more like a huge housecat than a proper tiger. He carries Yaiba and the others around on his back and sometimes helped him in his trainings. He's also smarter than Yaiba.

* CowardlyLion: Has his splinters of courage.
* HorseOfADifferentColor: Usually employed as a land-based transport by the heroes.
* MeaningfulName: Kagetora means "Tiger Shadow" and its also the name of the famous samurai and warlord Uesugi Kenshin.
* NonHumanSidekick

!!!voiced by Creator/MasaharuSato

Yaiba's pet Vulture follows him around and is used whenever he needs to fly. Also he's responsible for beating Onimaru's pet pidgeons, increasing his hatred towards Yaiba.

* AirJousting: Against Bat Guy and Kotaro Fuuma.
* HorseOfADifferentColor: When it comes to flying.
* MadeOfIron: Well, he can fly high while carrying all the group minus Yaiba...
* NonHumanSidekick

!!Musashi Miyamoto
!!!voiced by: Creator/MasaharuSato


UsefulNotes/MiyamotoMusashi is a 400 years old man who lived as a hermit on Mount Tengu, where the Raijin Sword is kept. After witnessing [[TheChosenOne Yaiba pulling the sword out of the ground]] he agreed to become his master and teach him the way of the sword. Despite the age he's still a powerful warrior and more than capable of kicking some ass. He also know a lot of techniques and strategies, and he can be very wise.

* AirJousting: Armed with an everyday katana, riding a huge owl against the [[ButtMonkey Spiderman]] on a plane. He [[CurbStompBattle turned that machine into sashimi!]]
* ArtEvolution: Expecially his eyes and his Eyebrows.
* BadAssGrandpa: In his youth he was just a badass.
* BigEater: He can wolf down HUGE amounts of food in a few seconds, and was known for stealing vegetables from a near village. It was dropped later.
* BigOlEyebrows: They're almost as long as he's tall.
* CantCatchUp: Mainly because of his age.
* CombatCommentator: ''Always''.
* CombatPragmatist: Ah-Hem!
* CrackOhMyBack: A couple of times early on, he's stopped from defeating the current enemies by a sudden backache.
* CurbStompBattle: When Yaiba turned into a crazy Oni for the first time, he knocked him down with a single strike. Wooden stick beats Lightning!
* DeadpanSnarker
* DirtyOldMan: Evolved into this, while he was more of a CovertPervert back on when he was young.
* DualWielding: Of course. In this case, he uses twin Shirasaya
* {{Expy}}: He's part [[Manga/RanmaOneHalf Happosai]], part [[Manga/DragonBall Roshi]].
* GeniusBruiser: He's really wise and smart, expecially in the Ryujin's Trials.
* GlassCannon: Sadly, his age and frequent backaches weaken his stamina
* ImplausibleFencingPowers: When he was young, he and Kojiro managed to slice a huge wooden beam into a bunch of chopsticks ''with their names carved on''!!
* ImprobableWeaponUser: He used a wooden Oar against Kojiro on Ganryujima. Like in RealLife
* IWasQuiteALooker
* LightningBruiser: He's really fasta and improves his speed by running away from restaurants without paying the check.
* MiniatureSeniorCitizens: Contrasting his tall, dark and handsome younger self.
* OldMaster
* OneManArmy: He can hold his own against armies of {{Mooks}}, but can't do much else against stronger opponents.
* WaxOnWaxOff: His typical method of training.

!!Gerozaemon Geroda
!!!voiced by: Creator/KazunariTanaka

A Former Hakki, Gerozaemon is the first of them, and he's a Frogman. He was sent by Onimaru to kill Yaiba, but he got defeated and joined his group. Despite being a Oni, he's a really good fellow and a good chef. He often fights alongside Yaiba and the others with his trusty hatchet and his tongue. [[spoiler: After Onimaru and Orochi's defeat he turned back into a frog.]]

* AlliterativeName
* AnAxeToGrind: His weapon of choice, though most of the time he either uses his tongue or bare hands.
* TheBigGuy
* ChefOfIron: Well, he's stronger than the average human and can make an excellent Sukiyaki (a sort of stew).
* DefeatMeansFriendship
* EnemyMine: He and Musashi briefly teamed up in order to stop a possessed Yaiba.
* HeelFaceTurn
* OverlyLongTongue: It's often really useful in battle and outside it.
* PunnyName: Gero is the Japanese equivalent of "Croak" or "Ribbit".
* WeaksauceWeakness: He's afraid of snakes.
* YouHaveFailedMe: Onimaru send the Snakeman to kill him after he failed to get rid of Yaiba.

!!Kojiro Sasaki
!!!voiced by: Creator/JurotaKosugi


Musashi's old rival, this master swordsman was resurrected by the Spiderman in order to become Onimaru's servant. Bent on taking revenge on Musashi, he later sees a new rival in Yaiba who manage to beat him with the power of Raijin. He the decide to follow Yaiba in order to steal his magical sword, but ends up as a stationary member of the group. He wields a magical Katana named Monohoshizao (lit. Laundry Pole), and its blade can stretch at will on command. He joins the Oda Nobunaga Tournament in the last arc but is defeated along the way by [[spoiler: Onimaru]].

* AbsurdlySharpBlade: His sword can easly cut a cliff in half.
* CallingYourAttack: "Grow, Laundy Pole!!"
* CameBackWrong: Not really, despite being a zombie he doesn't look different from any other living human.
* DeathIsCheap: He was revived with a Kappa Egg, Dragon Tears, Moth Dust and [[RuleOfFunny several slaps on the face]].
* DiagonalCut: His Tsubame-Gaeshi (Swallow Return) counterattack.
* HandsomeLech: He's quite a pervert, but the girls [[ChickMagnet seems to like him]].
* HeelFaceTurn
** HeelFaceRevolvingDoor: a RunningGag during the Onimaru's Fortress arc.
* PutOnABus: During the Legendary Orbs Quest arc he was hilariously defeated by Jubei, who took his place.
* RealMenWearPink
* RedEyesTakeWarning: He has red eyes, but he's not really evil.
* TheRival: To Musashi.
* TimeMaster: It's revealed that his sword can create portals through time, but he keep this power sealed within the handle using wrappings made from a lion's mane.

!![[UsefulNotes/YagyuJubei Jubei Yagyu]]
!!!voiced by: Creator/TakayaHashi

One of the Seven Swordsmen revived by Lord Onimaru, Jubei is a wandering Ronin and pupil of Musashi himself. He's a man of honor and a very serious samurai, and a skilled swordmaster. However when he gets drunk he turn into a violent Wolfman who attacks anyone in sight. He's also prone to [[RunningGag try to commit Harakiri]] quite often. He's last seen in the Oda Nobunaga Tournament where he fight Yaiba for one last time. [[spoiler: Three years later, he's WalkingTheEarth]].

* BrainwashedAndCrazy: During the Kaguya Arc he's merged with the Moon General Hangestu who take over his body in order to assassinate Yaiba.
* BoozeBasedBuff: If he gets drunk he turns into a Werewolf
* CallingYourAttacks: In the last arc.
* ChasteHero: When they rescue the girls from Kaguya's base they all fall for him, though he seems pretty clueless about it. In a later omake chapter he claims that attraction to women is a distraction for those who follow the way of the sword.
* TheComicallySerious
* CounterAttack: His strongest technique, the "Infinite Stance" allows him to anticipate any incoming slash and strike back.
* DualWielding: A Katana and a Wakizashi. During his Wolf form he once did this while [[CutlassBetweenTheTeeth holding the shortsword with his mouth]].
* EverythingsBetterWithSpinning: His Wind Gust attack, used only in Wolf form.
* EyeScream: Lost his eye to his father/master Munenori. It appears to have been an accident though.
* EyepatchOfPower: And it's made from a Katana's Tsuba (hilt).
* HeroicSacrifice: Quite prone to these.
* HonorBeforeReason: Let's just said he doesn't like the pragmatic strategies of his OldMaster Musashi
* {{Samurai}}
* MasterSwordsman
* NiceHat: He often wears a large straw hat.


A mysterious hooded girl appeared in the Pyramid Arc. She saves Yaiba and heal him with her powers. Later she guides Yaiba&co inside the Pyramid (which she seems to know quite well) and help Yaiba against the various foes inside. [[spoiler: She's actually revealed to be the Barrier Soldier, one of the [[FourIsDeath four top class Soldiers]], ans a Cyborg, created to lure Yaiba inside the Pyramid. However for some reason she sides with Yaiba instead of betraying him. She's blasted into pieces by the Pyramid Core's Lasers defending Yaiba.]]

* [[spoiler: ArtificialHuman]]
* BarrierWarrior: She can heal people and create powerful barriers capable of repealling any attack. [[spoiler: She IS actually the Barrier Soldier]]
* TheComicallySerious
* EmotionlessGirl
* [[spoiler: FaceHeelTurn]]: [[spoiler: Briefly, then after Jewel's death she's "good" again]].
* [[spoiler: LaserGuidedAmnesia]]: [[spoiler: a quite complicated one: She had her memories about being a Soldier removed, so she only remember the Pyramid and how to stop it. It backfires against her masters in the end]].
* MarshmallowHell: While hugging Yaiba in order to heal him. He [[LovableSexManiac was pleased..]]
* [[MrExposition Miss Exposition]]: During their trip inside the Pyramid.
* [[spoiler: TakingTheBullet]]: First during Yaiba's fight against Diamond, and it costs her arm. [[spoiler: Later she saves him from the lasers of the Core and gets KilledOffForReal. Yaiba was seriously [[TearJerker shocked]] by that and went into UnstoppableRage]].
* WalkingSpoiler

!!Moroha Kurogane

A mysterious and very rich girl who appears in the last arc and introduce herself as Yaiba's little sister. She tells Yaiba about his "impostor" father Kenjuuro and state that he'll meet him in the Oda Nobunaga Tournament. She later follows Yaiba on Yoroi Island and witness his battles in the Tournament.

* [[AloofBigBrother Aloof Little Sister]]: Despite being his little sister, she basically plays this role
* [[ArrogantKungFuGuy Arrogant Kendo Girl]]
* CombatPragmatist: At least Yaiba knows when to hold his strength, but she says that a true samurai should use all his strenght in any battle
* TheComicallySerious: She's very stern.
* DefrostingIceQueen: As she sticks with Yaiba, she quickly mellows down and learn that a Samurai isn't always a killer.
* CuteBruiser
* ImplausibleFencingPowers: She can knock several adult men unconscious in mere seconds, using a Shinai.
* LightningBruiser: See above. She accomplished said feat in a few seconds
* {{Tsundere}}: Usually quite cold and bitchy, but has also shown a more tender side of herself.
* TykeBomb: She trained herself from a very young age in order to beat Kenjuuro's Killer, who she identifies as Yaiba's Dad.


[[folder: Onimaru's Main Faction]]
!!Takeshi Onimaru
!!!voiced by: Creator/RyoHorikawa


The BigBad of the series, Onimaru was just a student and a really skilled and no-nonsense kendoka. Eventually, Yaiba manage to humiliate him in an attempt to challenge him and eventually they become bitter rivals. Obsessed with beating Yaiba, Onimaru discovers in a secret cellar of his house the Legendary Fujin Sword, and attempt to master it, turning himself into a powerful and large Oni bent on killing Yaiba and conquering the whole World. He has displayed many powers, and has attempted many plots to TakeOverTheWorld. During the Kaguya arc he was forced to [[EnemyMine join forces with Yaiba]]. [[spoiler: After getting the Devil King Sword he starts his plans of destruction by tricking the Underworld people and awakening the legendary dragon Orochi but eventually is vanquished once and for all by Yaiba who cut off his horns]]. He was then PutOnABus, [[spoiler: that came back just in time to put him as FinalBoss of the Oda Nobunaga Tournament.]]

* ArrogantKungFuGuy: In spades.
* BadAssBoast
-->'''Onimaru''': "I'm no longer a human... [[PunctuatedForEmphasis I'm a Oni! I'm the Incarnation of Evil!!!]]
* BadAssCape: Long and red.
* BadAssNormal: Before getting possessed. [[spoiler: Also after his training with Kenjuuro, who made him a perfect swordsman.]]
* BadBoss: Poor Spiderman...
* BaldOfEvil
* BattleAura: Like Yaiba above. [[spoiler: And even him can use the Tojin attack.]]
* BigBad: [[spoiler: Until the Orochi Arc.]]
* BlowYouAway: Expecially his Tornado Attack, which once ''drilled throught the earth surface''!!
* BrainwashedAndCrazy: Does his to the Japanese government members. [[spoiler: Ironically, it's revealed that he was like this the whole time]].
* BreakableWeapons: His Fujin Sword is broken by Yaiba's Thunder-enhaced Kaminari Giri, but it's repaired later.
* [[spoiler: BroughtDownToNormal]]: [[spoiler: He's eventually fred by Fujin's influence]].
* CallingYourAttacks: Rarely, including the Fujin Ha (Wind Devil Wave), the Tornado attack [[spoiler: and all the Devil King Sword attacks.]]
* CharlesAtlasSuperpower: Even before becoming a demon, he was strong enough to crush concrete pipes with a ''bamboo'' sword. [[spoiler: Afte Kenjuuro's training he can put all his power in a single slash, resulting in a swordstrike capable of flattening a steel armor and everything around it.]]
* TheComicallySerious
* CoolSword: The Fuujin Sword, even after it was repaired, and later on the Demon King Sword.
* DarkIsEdgy: Can use dark demonic powers. [[spoiler: Later he aquires the Devil King Sword]]
* DemonHead: Once at Spiderman.
* DemonicPossession: After mastering the Fujin Katana he got possessed by Fujin and become a Oni.
* DiagonalCut: The Iaido strike Yokoichimonji.
* EnemyMine: With Yaiba against Gekko and Kaguya, and that [[CrowningMomentOfAwesome was awesome]].
* EvilLaugh
* EvilOverlord: A standard one after being infected by Fuujin's evil.
* {{Expy}}: Without the horns, he looks like Tenshinhan from ''Manga/DragonBall''
* FlamingSword: [[spoiler: He managed to turn his [[WoodenKatanasAreEvenBetter bokuto]] into one with his ''ki'' during the final battle.]]
* [[spoiler: FinalBoss: After being trained by Yaiba's father himself.]]
* FourIsDeath: His Four Evil Kings (Shitenno) during the third arc. [[spoiler: Later his Four elemental Demons]].
* JetPack: Has one in his Armor.
* LaserBlade: [[spoiler: Eventually his Devil King Sword turns into one after going all out.]]
* MadeOfIron: When still human he was really resilient, even after falling into a deep hole and having several balls and later ''iron gym tools'' dropped on him.
* [[spoiler: TheManBehindTheMan]]: [[spoiler: For Boss]]
* MeaningfulName: Onimaru means, well.. Oni (Devil, Ogre).
* NamesToRunAwayFromReallyFast: Onimaru the Devil King.
* {{Necromancer}}: He raised seven famous warriors from the past to aid him.
* OmnicidalManiac: During the second-to-last arc
* OminousFloatingCastle: His Fortress. WaveMotionGun included.
* PersonOfMassDestruction: Oooh boy...
* PutOnABus: For a while after the Kaguya arc. [[spoiler: TheBusCameBack just in time for the Grand Finale in the Oda Nobunaga Tournament arc.]]
* RazorWind: His signature attack.
* RedOniBlueOni: Blue Oni to Yaiba's Red Oni
* RivalTurnedEvil
* ScaryImpracticalArmor: It looks cool, and doesn't put him in any disadvantage whatsoever.
* SlasherSmile
* SpikesOfVillainy: Both his horns and the various spikes on his armour.
* TakenForGranite
* TornadoMove: Onimaru with his "Tornado Attack", which was powerful enough to drill his way across a generous portion of the Earth's crust and kept going for a while in [[BeyondTheImpossible outer space]].
* VillainWithGoodPublicity: The Japanese people aren't really worried about having a demon as leader. Ok, they attempted an Air Raid on his castle, but..
* VillainousValor: Even a Oni warlord, he does show traces of virtue here and ther, most notably [[spoiler: TakingTheBullet for Yaiba himself and give him enough resolve to defeat Kaguya, as well as warning him to move out of the way before he shoots the Lightning Wind Bazooka at Gekko.]]
* WorthyOpponent: Considers Yaiba this. [[spoiler: Until the Orochi Arc, at first.]]

!!The Spiderman
!!!voiced by: Tetsuo Sakaguchi

The third of Onimaru's Eight Great Oni, he's a antropomorphic spider with Kansai accent who apparently came from Osaka. It serves mainly as Onimaru's righthand man and henchman, but is quite clumsy and incompetent. He briefly sides with Yaiba during the Kaguya Arc when his master is [[TakenForGranite sealed in Carbonite]].

* AchillesHeel: Can't stand loud noises.
* AffablyEvil: Come on, you can't hate this guy for being evil!
* ButtMonkey: A Huge one.
* GiantSpider[=/=]SpiderPeople
* TheIdiotFromOsaka: He speaks with a thick Kensai accent, he's very greedy and [[ArsonMurderAndJaywalking he likes Takoyaki a lot!]]
* IneffectualSympatheticVillain
* KnifeNut: His WeaponOfChoice. When not using [[ImprobableWeaponUser other stuff]].
* [[HumongousMecha Mega Mecha]]: He's actually the fourth Shitenno, Tortoise Europa, which is a giant Turtle Robot. Which can turn into a GiantSpider too.
* PaperThinDisguise: Often, and it works!
* TooDumbToLive

!!Professor Kanabo
!!!voiced by: Creator/HisaoEgawa

A Mad scientist with awful teeth and a penchant for creating really dangerous Stuff. He's hired by Onimaru and provdes him weapons and advice. He also repaired the Fujin Sword and built the [[WaveMotionGun Onimaru Cannon]], a Flying Submarine and the [[{{BFG}} Furai Bazooka]].

* BritishTeeth: Lampshaded in the Omake, where he's forced to withdraw from the competition after eating some shaved ice and getting toothache.
* CloudCuckooLander: Oooh boy..
* DirtyOldMan: In the Chiki Chiki Grand Prix Omake he peeks at Sayaka while she's sunbathing and get slapped like the others.
* DoomsdayDevice: His specialty
* MadScientist: Indeed, but also very loyal to Onimaru
* MadeOfIron: He somehow survived the destruction of Onimaru's Fortress by Kaguya.
* WhatHappenedToTheMouse: After the Kaguya Arc he's not shown again.


[[folder: Onimaru's Minions]]
!!The Eight Great Oni (Hakki)

The first QuirkyMinibossSquad, they're all demons born from animals.

* AchillesHeel: All of them has one, for example the Snakeman's tail, or Bat Guy's glasses (which protects him from sunlight)
* AttackOfThe50FootWhatever: The Slugman when he first appears is simply Huge.
* BladeOnAStick: The Snake-God Pike, Snakeman's spear.
* BroughtDownToNormal: When they're "killed" they simply turn back into their harmless animal form.
* CoDragons: With Bat Guy being TheDragon in virtue of being Onimaru's strongest vassal at the time.
* CovertPervert: The Starfishman, Mantisman and Seacucumberman all fall for Sayaka.
* EmbarrassingFirstName: Snakeman true name is Julius Zuppopotamus Third. Also counts as a InUniverse {{Narm}}.
* EverythingsBetterWithSpinning: The Starfishman. He can actually fly and uses this technique to obtain the Fire Orb from Mount Aso.
* FluffyTheTerrible: Invoked with the Snakeman and the Slugman, whose ominous appearence is greatly diminished when they reveal their ridicolous-sounding real names. Both are still dangerous opponents who give Yaiba trouble.
* GratuitousEnglish: '''Bat Guy'''! (He's actually called Batman in the manga).
* HeelFaceTurn: Gerozaemon and the Seacucumberman ends up siding with our heroes. The Starfishman and Mantisman simply [[ScrewThisImOuttaHere run away when they hav the chance and go back home]].
* HeroicSacrifice: Starfishman uses his powers to obtain the Fire Orb... but is nearly burnt to death by a jet of flame, and almost dies... before Yaiba uses the Water Orb to save his life.
* IneffectualSympatheticVillain: The Seacucumberman is the most prominent.
* KnightOfCerebus: Expecially the Snakeman and Batman
* OurVampiresAreDifferent: Bat Guy is an english-speaking, red-skinned humanoid with short hair, clawed feet and batwings, he can bite people to turn them into wolfmen (not even he's sure about how that works) who can turn back to normal by biting him, controls smaller bats and is WeakenedByTheLight if he doesn't wear his protective googles.
* PettingZooPeople: Including: Gerozaemon, Snakeman, [[BatOutOfHell Batman]], the Slugman, [[GiantSpider Spiderman]], Starfishman, Mantisman and the Seacucumberman.
* PrecisionFStrike: Bat Guy actually says "God Damn!" when he's killed the first time.
* PunchClockVillain: The last trio of demons. After being defeated, the Starfishman and the Mantisman go back to Kyushu and Nagoya respectively.
* RecurringBoss: The Slugman attempted twice (the second time as Snailman) and also the Batman
* RidiculouslyCuteCritter: The Seacucumberman
* RoyalRapier: Bat Guy's weapon of choice.
* ShouldersOfDoom: Most of them wear cloacks with large shoulderpads
* SinisterScythe: The Mantisman can use his arms as sickles.

!!Onimaru's Four Evil Kings (Shitenno)
!!!voiced by: Kazumi Tanaka (Chameleon Bonaparte), Creator/TesshoGenda (Dry Dry), Creator/FumihikoTachiki (Yakitori)

The Four Guardians of Onimaru's castle.

* AffablyEvil: Yakitori, before getting angry.
* AlluringAnglerfish: Yakitori, who speaks softly and has a really large stomach
* BerserkButton: Don't call Yakitori Toadstool... or steal his paper lantern.
* FourIsDeath
* HollywoodChameleons: [[GratuitousFrench Chameleon Bonaparte]], the second Shitenno
* HumongousMecha: The last evil King is actually a Mecha Turtle run on by the Spiderman.
* KillerRabbit: Dry Dry the Supergorilla is tiny, but super strong!
* MacGuffinGuardian: Guarding places and rooms rather then a specific item.
* MadeOfIron: Dry Dry again, who had a wall tossed on him and survived.
* OneWingedAngel: Sort of: After Super Gorilla is defeated, he turn back to normal.... that means a giant, strong and rampaging gorilla. Thankfully, Yaiba manage to tame it.
* OverlyLongTongue: Chamaleon Bonaparte
* TurtlePower: Tortoise Europa.
* VoluntaryShapeshifting: Bonaparte can do this.

!!The Seven Revived Swordsmen

The warriors from the past summoned by Onimaru in order to kill Yaiba, they include:

''Miyoshi Seikai'', a monk and member of the Ten Sanada Braves. ''UsefulNotes/FuumaKotaro'', shinobi and fifth head of the Fuuma Clan. ''Amakusa Shiro Tokisada'', sorcerer and a christian Samurai. ''UsefulNotes/IshikawaGoemon'', rogue and former ninja. ''UsefulNotes/YagyuJubei'', ronin and master swordsman. ''Musashibo Benkei'', a Yamabushi (warrior priest/sorcerer) and ''Matsuo Basho'', poet and former warrior.

* AffablyEvil: Goemon.
* BeethovenWasAnAlienSpy: Basho Matsuo was a fierce assassin disguised as poet who wanted to TakeOverTheWorld with Ryujin Orb.
* BitchInSheepsClothing: Basho.
* BladeOnAStick: Shiro's Cross Spear.
* TheBrute: Benkei is very powerful, but far from being smart.
* CarFu: The battle between giant Yaiba and Goemon inside the [[HumongousMecha Osaka Castle]], where the latter used a whole train as a Nunchaku. There's also Kotaro's Car Fall Jutsu.
* CarnivalOfKillers
* CarryABigStick: Seikai's steel staff and Benkei's Iron Bat-like Kanabo.
* DroppedABridgeOnHim: Kotaro Fuuma's departure is quite hasty and anti-climatic, considering that he went really close to actually kill Yaiba.
* DubNameChange: In the Spanish dub, only Seikai Miyoshi and Jubei keeps their whole names. Kotaro, Shiro and Benkei are reduced to OnlyOneName and Goemon and Basho are renamed "Rocko el Barbaro (The barbarian)" and "Chi Pan".
* DumbMuscle: Benkei again. Let's just say he's not the brightest crayon in the box.
* EpicFlail: Kotaro's Kusarigama.
* EvilSorcerer: Shiro Amakusa
* FatBastard: Goemon Ishikawa
* FluffyTheTerrible: Kotaro's name literally means "Little Kid". The guy himself is a giant of a man, well-muscled and dangerous.
* UsefulNotes/FuumaKotaro
* FuumaShuriken: Strangely, Goemon uses them in his Bear-form
* HandSeals: Kotaro Fuuma uses a correct Ku-ji spell against Yaiba.
* HistoricalDomainCharacter: UsefulNotes/IshikawaGoemon, to use the Japanese order.
* HumanPopsicle: Followed by LiterallyShatteredLives, this is what happens to Benkei.
* HumongousMecha: Goemon controlling the Osaka Castle, which was rebuild as a giant Mecha by Onimaru's goons.
* ImprobableWeaponUser: Goemon's Kiseru, Iron Parasol and Basho's needles.
* {{Kitsune}}: Shiro was actually revived as a Fox-Man.
* LargeAndInCharge: Kotaro was the fifth leader of the Fuuma clan and he's quite a giant of a man.
* LargeHam: Goemon Ishikawa! [[VideoGame/SamuraiWarriors King of Thieves! You surely had heard that name before...]]
* LightningBruiser: Kotaro, Shiro, Goemon and Basho are really fast on their feet.
* [[MeaningfulName Meaningful Nickname]]: In the spanish dub, Benkei "El Toro" (Benkei the Bull) and Kotaro "El Hijo del Viento" (Son of the Wind).
* {{Ninja}}: Kotaro Fuuma, who actually uses Ninpo, and Goemon Ishikawa, who's much more visible.
* OneWingedAngel: Everyone of them turn into an Animal/man as last resort. Seikai in a [[SeaMonster giant octopus]], Kotaro in a [[FeatheredFiend hawk]], Shiro into a [[{{Youkai}} Giant Raiju]], Goemon in a {{bear|sAreBadNews}}, Benkei in a [[ALoadOfBull bull]] and Basho in a [[EverythingsBetterWithMonkeys chimpanzee]].
* PettingZooPeople: See above
* RazorWind: Kotaro's Kamaitachi jutsu.
* SinisterScythe: Basho's weapon.
* TheStarscream: Basho Matsuo want to rule the world.
* TakenForGranite: Basho's needles can petrify people. It's a hobby of his.
* VerbalTic: Goemon's :" If you excuse me..."

!! Onimaru's Demon Gods

The last group of Onimaru's servants and probably the strongest of them all. It's composed of four demons referred to as the Kishins (Demon Gods) with elemental powers and magical swords. At first they're a bit of a GiantSpaceFleaFromNoWhere

* AbsurdlySharpBlade: Their blades
* AndIMustScream: Dark's ''Dark Pyramid: Delta Zone'' attack can send any hit opponent into another dimension forever.
* AwesomeButImpractical: Rain's longsword can stretch itself and pass through any substance, cutting only flesh. Seems cool? Try to use it to parry an incoming sword strike....
* {{BFS}}: Their swords are ''Tachi'' (Longsword), and they tend to be quite long and broad
* BladeBelowTheShoulder: [[spoiler: Unlike the other demons, Plasma has two blades on his forearms, that look like the "wings" of a Manta Ray]].
* BossInMookClothing: Dark before revealing himself as TheDragon
* CoolSword: Rain has the Water Demon Longsword, which manipulates water and can phase through unorganic matter to sever flesh, Burner has the fiery Fire Demon Lonsword and Dark fights with an unnamed but slick-looking falchion which can use to cast his Dark Tunnel.
* DangerousForbiddenTechnique: Dark's ''Super Delta Zone'' is said to exhaust the 80% of his stamina and LifeForce
* DarkActionGirl: Rain.
* DarkIsEdgy: Dark has total control of the Darkness and can use it in many ways.
* ElementalPowers: Each of them, namely Water, Fire, Darkness and [[spoiler: Light]].
* ElementalRockPaperScissors: Yaiba managed to beat Rain by using the wind to wash away all the water in the battlefield, but she just make more of it out of her sword. Also Sayaka tries this [[spoiler: while wielding the Water Demon Longsword]] against Burner, but it's not enough.
** Furthermore, Yaiba manage to escape Dark's ''Dark Zone'' by shattering it with the light of his sword. [[spoiler: And also Plasma, whose illusions are stopped as Yaiba use the Supreme King Sword to cover the sky with dark clouds]].
* {{Fireballs}}: Burner's main tactic consist in tossing a large number of these at his target. Or a single big one.
* FlamingHair: Burner, of course, while Rain sports a curious case of "'''Watering Hair''"
* FlamingSword: The Fire Demon Longsword can engulf itself in flames and burn down to ashes everything it touches, even the other swords and their wielder.
* GravityMaster: Sort of. Dark's ''Dark Zone'' attack can suck inside the shadow projected by his sword everyone standing on it.
* HoistByHisOwnPetard: Dark [[spoiler: falls victim of his own Delta Zone and Plasma has his thunder ray sent back to him.]]
* HornyDevils: Before facing Yaiba, Rain appears to him as a beautiful schoolgirl and invite him on the roof for "giving him something"...
* KillItWithFire: Guess who?
* KillItWithWater: Rain, whose powers allow her to create [[ThisIsADrill huge water drills]], [[ImpaledWithExtremePrejudice spears]] and [[DeathOfAThousandCuts needles]] made of [[AnIcePerson ice]] or simply blast huge water bullets from her sword.
* KnightOfCerebus: Rain, who despite being the starter villain for that arc manages to be more dangerous than many previously seen enemies.
* LightIsNotGood: The last demon, [[LightEmUp Plasma]].
* LightningBruiser: Dark is quite fast, [[spoiler: and Plasma is simply a champion at it... well, being the Light Demon and all...]]
* LuckilyMyShieldWillProtectMe: Burner's large shield can also spit a stream of fire.
* MakingASplash: Rain and her Sword.
* MalevolentMaskedMan: Dark wears a creepy mask and his face is always concealed.
* MasterOfIllusion: [[spoiler: Plasma can turn himself into anyone and cast powerful illusions manipulating the light in the enviroment.]]
* MeaningfulName: All of them.
* NobleDemon: Burner is not as ruthless as his collegues. Still this diesn't stop him from demolishing Sayaka's mansion with his FireBalls attacks
* OneHitKill: The previously mentioned Delta Zone
* PlayingWithFire: Burner and his Falchion.
* RedOniBlueOni: Burner and Rain.
* SelfDuplication: Burner is capable of this, using fire clones.
* ShockAndAwe: [[spoiler: Plasma can use any "light" source to recharge himself and attack, including Lightnings, which later toss at Yaiba]].
* YouHaveOutlivedYourUsefulness: Dark to a defeated Burner


[[folder: The Moon People]]
!!Princess Kaguya
!!!voiced by: Creator/RikaFukami


The Moon empress and evil counterpart of Ryujin. Unlike her subjects, she appears as a beautiful woman with a PlayboyBunny-like outfit and wielding a small fan. She's really powerful, and can erase mountains from existance with her Ki-blasts. Furthermore, in order to stay young and powerful she must drain the [[LifeForce "Essence of Youth"]] out of [[LesYay young women]]. Her goal is to conquer Earth and rule the planet forever. It's revealed that a thousand years ago, she invaded Japan but was defeated by Ryujin and was sealed inside the body of the Dragon Maiden, and in order to return to her [[EldritchAbomination original form]] she needs the essence of Sayaka, the descendant of the Dragon Maiden. [[spoiler: She eventually managed to absorb Sayaka's energy via a KissOfDeath and turned into her gargantuan, multiheaded true form, and after a long battle she [[FusionDance merged with]] Earth bu was sealed away by Yaiba's Ultimate attack. She's awakened during the Orochi saga and is sealed in Sayaka's body, who compels her to aid Yaiba against Onimaru. She managed to stop the Leviathan's heart in order to allow Yaiba to beat Onimaru and cut his horn. After Orochi's fall, she leaves Sayaka's body, return to her spaceship and order his subject to return on the moon.]]

* AlienInvasion: And she's leading it.
* AttackOfThe50FootWhatever: Her true form is very huge.
* BeamSpam: Can do this with her fan.
* BigBad: Of her Arc
* BreathWeapon: True form only. And it's WaveMotionGun sized.
* EldritchAbomination: Her true form.
* EnemyMine: [[spoiler: With Yaiba in order to stop Orochi from destroying the world.]]
* EnergyBeings: Can assume this form. [[spoiler: Shown properly when she leaves Sayaka's body and appears as a tall, [[NonMammalMammaries humanoid female bunny]] made of light.]]
* EvenEvilHasStandards: She's really reluctant to allow Gekko to use the Devil King Sword.
* EvilOverlord: Of the WellIntentionedExtremist part, advocating GaiasLament.
* EvilWearsBlack: Her outfit is black (even when shaded purple).
* FanDisservice: Her "old" form.
* FrickinLaserBeams: Her specialty.
* FusionDance: The Gatai power, like all the Moon People
* GeniusLoci: [[spoiler: After using said Gatai with the Planet Earth!!]]
* GettingCrapPastTheRadar: Aoyama basically got away with having a villainess dressed up as a ''freaking Playboy Bunny'' in a manga for young kids.
* GodSaveUsFromTheQueen: Though she's referred to as a princess or empress, she's still a cruel leader.
* GrandTheftMe: She's possessing a Ryujin's Priestess body.
* HeelFaceTurn: [[spoiler: Courtesy of Sayaka]]
* HighClassGloves: Her royal outfit includes long gloves.
* HoistByHisOwnPetard: In the past, taking the body of Ryuujin's Priestess allowed Ryuujin to seal her powers into a weak human body by severing her ears.
* KiAttacks: Several of them.
* KissOfDeath: Her kiss can drain away Youth from a woman. [[spoiler: Thankfully after she's defeated the essence returns to the women]].
* MadeOfIron: Even in her weakened form she survived a barrage of FireBalls, RazorWind and a ''Whole Frickin' Tornado''!!!
* [[MarsNeedsWomen Moon Needs Women]]: In order to stay young and powerful.
* MsFanservice: Despite being a villain, her outfit and buxom chest certainly fits this. Even the manga had fun with this in some of the SideStoryBonusArt.
* ModestyBedsheet: Sleeps in the nude.
* MoonRabbit: She's their Queen.
* NoblewomansLaugh: She does this in her first appearance.
* OhCrap: Reacts with sheer terror when [[spoiler: Yaiba uses all the power of Ryuujin against Earth itself, which results in her taking the bullet and going into a sealed coma to save the planet from certain destruction.]]
* OneWingedAngel: When her powers are partially unleashed she briefly conjures demonic hydra-like heads from her neck and limbs, later on she takes back her original, monstrous form. [[spoiler: Subverted in the end of the Orochi Arc, where, despite being free, she decides to assume her human form because "she never like that form anyway".]]
* PimpedOutCape: Her royal outfit includes a fur-trimmed cape.
* PlayboyBunny: She wears one that is fit for royalty. [[spoiler: The ears however actually serves to hide her real bunny ears stumps.]]
* PrehensileHair: Can use them as a trump card
* PrettyInMink: Her outfit is trimmed with white fur.
* PurpleIsTheNewBlack: In the anime, and some art, her black outfit and hair are shaded purple.
* SlasherSmile: A permanent, toothy one in her true form.
* ShouldersOfDoom: Her outfit includes properly villainous shoulder guards.
* SexyBacklessOutfit: The leotard of her outfit is this, although with the cape, it's not immediately visible.
* TakingTheBullet: [[spoiler: How she's actually defeated after she merges with Earth.]]
* VillainousBreakdown: Snaps during the final confrontation as she starts growing older and older while the heroes are busy saving Sayaka.
* VillainousValor: While she is cruel and cold towards mankind and most of her subjects, she deeply loves the Earth, and makes sure Tsukikage gets the best healing they can muster after he took a fireball for her.
* VoluntaryShapeshifting
* WeaksauceWeakness: She must feed every 24 hours, or she'll die. [[spoiler: This weakness is gone once she returns to her true form.]]
* YouHaveFailedMe: She obliterated Mangetsu for failing her.

!! Tsukikage
!!!voiced by: Creator/DaikiNakamura

The greatest Moon General, and Kaguya's [[TheDragon right-hand man]]. Is a cold and extremely competent MoonRabbit and really loyal to her mistress. Apparently, he's Gekko's elder brother, or at least best friend.

* BadassInANiceSuit: The strongest and most competent Moon General, as well as one with a sharp dress.
* BattleButler: To Kaguya herself.
* TheComicallySerious
* TheDragon: Kaguya's most loyal supporter, and the strongest before Gekkou comes to town.
* EvilGenius: He's really smart
* FrickinLaserBeams: After Kaguya entrust him with her fan
* ShipTease: With Kaguya.
* TakingTheBullet: He uses his body as a shield to protect Kaguya from Yaiba's FireBalls
* TheUnfought: He never really fight someone seriously

!!!voiced by: Toshihiko Nakajima

A Large MoonRabbit who concots a plan to kill Yaiba, which include surrounding Tokyo with gigantic walls and flood the whole city until he shows up. After a quick battle with the KidSamurai he uses the power of Gatai first on a Lobster, and later (in order to avoid [[KillItWithFire Yaiba's fireblasts]], with a propane Tank. Eventually he's outsmarted by our hero, tossed in space and "Fired" back to the moon. He asks Kaguya a second chance, but she simply destroys him.

* BreathWeapon: In his "Tank" form he can spit fire
* TheBrute: A straightforward and ambitious prick with no finesse in combat.
* FatBastard: A portly bunny whose plan for challenging Ryuujin involves flooding an entire city. He becomes even bigger after merging with a gas canister in order to stop Yaiba from using the Fire Orb's powers.
* FusionDance: He's the first Moon Person to show this skill to Yaiba
* GiantEnemyCrab: Or rather a Giant Enemy Lobster, and man, it was really powerful.
* KnightOfCerebus
* LargeAndInCharge: Subverted, despite being the largest of the Moon Generals, he's also the one with the lowest rank.
* TheStarscream: Plans to take Tsukikage's place.
* YouHaveOutlivedYourUsefulness:
-->'''Kaguya''':" Take all the time you want. [[PreMortemOneLiner Even the whole eternity!]]

!!!voiced by: Nobuhiko Kazama

One of the Moon Generals, is a thin, weird looking rabbit who serves in Kaguya Army. When Yaiba attacks Kaguya spaceship in order to save the imprisoned girls, he, Tsukikage and Shingetsu attack Yaiba. He uses Gatai on a Shark to fight him underwater, but has his [[AchillesHeel ears]] cut off and he's blocked in shark form.

* EliteMooks: He and Shingetsu are basically this
* {{Gonk}}
* GoodScarsEvilScars: Has a crescent-shaped scar on his forehead, which fits his name. (Mikazuki means ''crescent moon'')
* LeanAndMean
* ThreateningShark: He merges with one to fight Yaiba, though he mostly rams him with his muzzle.

!!!voiced by: Tomohisa Asou

Another of the Moon Generals, and pal of Mikazuki. He's an Elder MoonRabbit with a long beard who fights alongside Mikazuki and Tsukikage to stop Yaiba. He "merge" with a squid, but suffers the same fate of Mikazuki.

* CombatTentacles: In his squid form.
* EverythingsSquishierWithCephalopods: He merges with a giant squid to fight Yaiba, and can regrow tentacles and shoot ink from its beak.
* EvilOldFolks: The oldest-looking of the Generals.
* ThoseTwoBadGuys: He and Mikazuki seems to be this

!!!voiced by: Ginzo Mastuo

A really short and plump MoonRabbit, he's Kaguya's Advisor. After Yaiba's raid Kaguya's Spaceship, Jubei is left behind, and Mangetsu uses his powers to Merge with Jubei and take over his body. Later he go back to Mine house, kidnap Sayaka and attempt to kill Yaiba but is discovered. Eventually Musashi manage to make him drunk and awake his Wolfman side, who chase away the Rabbit who gets captured. When Gekko storms Mine house later, he kills him [[ThereIsNoKillLikeOverkill by shooting him point blank with his Bazooka]].

* EvilOldFolks
* GrandTheftMe: Does this by using Gatai on Jubei.
* HoistByHisOwnPetard: It sucks to be a rabbit when the guy your mind just took over can turn into a werewolf...
* OhCrap: When he sees Gekko
* TheUnfought: He's never fought directly, he only uses Jubei as a vessel.
* YouHaveFailedMe: Subjected to this by Gekkou.

!!!voiced by: Creator/KazukiYao


The only Black MoonRabbit, Gekko is an insanly powerful warrior who was imprisoned for trying to overtake the Moon. Kaguya free him in order to have him fight Yaiba and kidnap Sayaka. After his first failure, he decide to violate the cell [[NumberOfTheBeast "666"]] and take the [[EvilWeapon Devil King Sword]], which uses to utterly best Yaiba. Eventually, the combined forces of Yaiba and Onimaru manage to defeat Gekko's Sword. [[spoiler: After the Orochi Arc he appears along with Tsukikage and the other Moon People when Kaguya "de-merge" herself and return to her "human" form]]. In the Anime is revealed that Gekko was mistreated and bullied as a child because of his black fur, and only Tsukikage was close to him.

* AccidentalPervert: At first Yaiba thinks he want to kidnap Sayaka to make out with her.
* {{BFS}}: The Devil King Sword is quite large compared to him
* BlobMonster: He carries around some strange space monster called Mochi-Ron, who uses to block enemies.
* CarryABigStick: His Moon club. More of a Bazooka than a bludgeon.
* DangerousForbiddenTechnique: The Devil King Sword's Fullmoon Blast can easly turn Earth into a dead wasteland, just like the Moon
* TheDragon: To Kaguya.
* EvilWeapon: The Devil King Sword (Maoken).
* EyeScream: In the past, Ryujin took away his eye with a sword strike. It grows back when he seize the Maoken.
* FreudianExcuse: He had a weddlesome past.
* KillerRabbit: More like OmnicidalManiac Rabbit, but it fits.
* KnightOfCerebus: The first person to actually curb-stomp Yaiba, even with the Ryujin Sword.
* PersonOfMassDestruction
* PetTheDog: He's nice to Tsukikage and often calls him "Aniki" (Big Bro).
* PsychoForHire
* RedOniBlueOni: Red to Tsukikage. Wheter they're actual brothers or not isn't actually known.
* ShouldersOfDoom
* VillainousBreakdown: After his defeat.
* WoobieDestroyerOfWorlds: Anime Only.


[[folder: The Pyramid Guardians]]
!!The Third-Class Soldiers

These are the lesser minions from the Underworld Kingdom who defend the Pyramid. Despite being the lowest class soldiers, they're still [[MadeOfDiamond really resilient]] and more than a match for the young samurai. They include the Rock Soldier, the Sugi (A Japanese conifer tree) Pollen Soldier and the Snowman Soldier

* AnIcePerson: The Snowman Soldier
* ChunkyUpdraft: The Rock Soldier, when summoning his axe.
* CurbStompBattle: The Rock Soldier delivered one to Yaiba, complete with WorfEffect
* DirtyCoward: The Snowman Soldier is a sneaky bastard.
* DishingOutDirt: The Rock Soldier can conjure stones to form AnAxeToGrind, which, judging from his effects, is MadeOfExplodium.
* FlunkyBoss: The Sugi Pollen Soldier and the Snowman Soldier are assisted by a bunch of trees (the former) and one of little snowpuppets (the latter).
* HumanPopsicle: The Snowpuppets dance attack can turn the opponent inside the circle they form into this.
* KillerRabbit: The Snowman Soldier
* KnightOfCerebus: The Rock Soldier
* LosingYourHead: First played for laughs and later Weaponized by the Snowman Soldier
* MadeOfDiamond: All of them.
* MultiarmedAndDangerous: The Sugi Pollen Soldier.
* NonStandardCharacterDesign: The Rock Soldier is far less goofy than his colleagues.
* PoisonedWeapons: The Sugi Pollen Soldier attack with the eponymous pollen and poisonous steel leaves.
* RockMonster: The aptly named Rock Soldier.
* SlasherSmile: All of them, sooner or later.
* TakingYouWithMe: Like all the Soldiers, they explode if killed
* WhenTreesAttack: The Sugi Pollen Soldier.

!!The Second-Class Soldiers

The EliteMooks compared to their lower class collegues. They're the Ant Soldier, Budou the Grapefruit Soldier and the Mushroom Soldier.

* ArrogantKungFuGuy: Budou
* CallingYourAttacks: Budou,'s ''Muscat Kick'' and ''Kyohou Blast'' attacks, which both features PunnyName
* DualWielding: The Mushroom Soldier uses his scimitar and Yaiba's Raijin Sword to fight him.
* FaceHeelTurn: Happens to those who eat the mushrooms in the Mushroom Soldier's Room. It can be reveserd.
* HoistByHisOwnPetard: The Grapefruit Soldier falls off the Pyramid when Yaiba hit his arm, making him fire his Kyohou Blast right next to him.
* IgnoredEnemy: The poor little Ant Soldier gets this treatment
* InformedAbility: The Ant Soldier is said to have the hardest and strongest body, and able to pick up items several times his size. He's actually Ant-Sized too, and so said giant boulder is revealed to be a normal sized stone.
* KiAttacks: Budou can shoot purple "grapefruit-like" Ki Blasts
* MegaManning: Sort of: Mushroom Soldier can pick up and use the Raijin Sword because his masters built him with this ability. [[spoiler: Considering that one of his makers may be Onimaru, who possessed the Fujin Sword, another demon katana, it's quite FridgeBrilliance]].
* SinisterScimitar: The Mushroom Soldier.
* SuperStrength: The Ant Soldier.
* TurnsRed: Budou improves his speed by removing his claws and the "Grapes" around his neck, leaving only his head.
* WolverineClaws: Budou's WeaponOfChoice

!!The First Class Soldiers

These are the top fighters of the Pyramid, and really powerful. They all look like twins girls, and each of them is specialized into a particular branch of fighting.They are Ruby, the Stong Soldier, Sapphire the Skilled Soldier, Diamond the Genius Soldier [[spoiler: and Emerald the Barrier Soldier]]. They can also merge together to form Jewel, the Perfect Soldier.

* ArtificialHuman: All of them
* ArrogantKungFuGuy: All of them.
* TheBrute: Ruby
* CombatClairvoyance: Diamond is so intelligent that she can forsee Yaiba's attack and parry them in time.
* DarkActionGirl: Expecially Ruby and Sapphire
** TheDarkChick: Diamond [[spoiler: and Emerald]].
* DarkSkinnedBlond: Jewel becomes this.
* {{Doppelganger}}: Sapphire can replicate any attack and weapon she sees, and Jewel as well.
* DualWielding: Jewel briefly wields two energy copies of the Swords of Fujin and Raijin in order to use the Juumonji Giri against Yaiba.
* EnergyWeapons: Including a [[AnAxeToGrind large battleaxe]] for Ruby, a [[CoolSword copy of the Raijin Sword]] for Sapphire, a [[SinisterScythe Scythe]] and several [[KnifeNut daggers of various size]] for Diamond. Jewel uses weird Javelin-like Orb and a [[{{BFS}} Greatsword]].
* EvilGenius: Diamond fits this trope to a T.
* FrickinLaserBeams: Jewel's ring can shoot them.
* GenderBender: Apparently, Jewel is male, but the Soldiers that merge to create him are female.
* GirlishPigtails: Sapphire.
* {{Jerkass}}: They're really nasty to Yaiba.
* MegaManning: Sapphire, the Skilled Soldier, can copy any technique used against her after mere seconds.
* QuirkyMinibossSquad
* SuperStrength: Ruby, the Strong Soldier, who can bend the Raijin Katana with a finger.
* ThemeNaming
* VerbalTic: "Bip". Said by Diamond during her fight with Yaiba and right after Jewel's death.
* WhatMeasureIsANonHuman: Yaiba has no problem attacking three beautiful girls, but after all, he never said he WouldntHitAGirl either...


[[folder:The Denizens of Underworld]]

The Mysterious leader of the Underworld Kingdom, he's always seen sit on his throne behind a waterfall, and he's the one behind the Pyramid and hold a huge grudge against humanity, accusing them of [[HumansAreTheRealMonsters spoiling the Earth with wars and pollution]]. [[spoiler: We find out that he was misguided by Onimaru and has one of his super Warriors turned against him and his kingdom, but is saved by Yaiba. He appears later to help Yaiba and Sayaka against the Yamata no Orochi]]. He also [[ArsonMurderAndJaywalking looks like]] [[Manga/DragonBall Kami]].

* BigBad
* EarthquakeMachine: His people are able to build these.
* {{Expy}}: Of [[Manga/DragonBall Kami]].
* [[spoiler: HeelFaceTurn]]:
* InformedAbility: When he finally appears before our heroes, he stated that noone of Yaiba's group (minus Yaiba) could even hope to hurt him. [[spoiler: Yet, in the Orochi Arc he's stopped by a Kaguya-Possessed Sayaka with ease]].
* KillThemAll: After Yaiba destroys Tokyo's Pyramid he reacts by sending tons of laser-shooting black pyramids all over the world.
* MrExposition
* OrcusOnHisThrone
* WellIntentionedExtremist: He's not really wrong about humans...


The Super Warriors of the Uderworld Kingdom, they're two black giants with a single eye each. They're really powerful and strong, but not very smarts. [[spoiler: eventually Onimaru reveal himself, and use the powers of the Devil King Sword to turn Gold into a Oni, and orders him to destroy the whole underground realm, but Yaiba kills him in time with the Supreme King Sword and full power.]]

* AttackOfThe50FootWhatever
* AttentionDeficitOohShiny: When Gold is about to finish Yaiba, the cheering Underworld people attract his attention, and he unleash several deadly attacks on them.
* BreathWeapon: [[spoiler: As Oni, Gold can shoot a devastating laser out of his maw]].
* TheBrute
* {{BFS}}: Gold's Sword is really large.
* DumbMuscle
* EnemyCivilWar: Yaiba manage to cause a quarrel between the two titans. This lead to Silver's death at the hands of Gold.
* EpicFlail: Silver, who stores it in his stomach
* EyeBeams: Silver can shoot a [[ShockAndAwe shocking laser]] while Gold creates some weird rings that paralyse the victim
* EyeScream: Silver, and twice.
* FlamingSword: Gold can heat up his saber.
* GoForTheEye: Yaiba's strategy against Silver.
* HoistByHisOwnPetard: Silver follows Yaiba inside a small pool of water and gets electrocuted by his own beam.
** [[spoiler: Later Yaiba uses Gold's outstretched arm and his strenght to propel himself fast enlugh to pierce him]]
* LightningBruiser: Despite their size, they're really fast.
* OurGiantsAreBigger
* RubberMan: Their bodies are extremly bouncy ([[{{Gainaxing}} No, not ''that'' kind of bounce]]) and they also can stretch their arms at will.
* SlasherSmile: Sometimes they do this. [[spoiler: Perpetual on Oni Gold's face]].
* SpikesOfVillainy: [[spoiler: After being turned into a demon, Gold grow a single large horn.]]


[[folder: The OdaNobunaga Tournament Participants]]
!!Unnamed Samurai

The first fighter met by Yaiba, is a stern looking samurai who uses a peculiar sword style involving water. Despite having no name, he serves to prove how hard this tournament will be.

* CoolSword: Uses a Katana
* {{Determinator}}: This guy had an amazing iron will, even after being hit several times in vital points..
* KillItWithWater: His ''Suishin Ittoryu'' (Water God One Sword Style) uses a combination of swordmastery and water.
* NoHoldsBarredBeatdown: Yaiba had to deliver one on him to stop him. [[BreakTheCutie And he felt terrible]].
* NoNameGiven
* {{Samurai}}

!!Frederick Luther III

A ''European'' Knight, and Yaiba's second opponent. Despite his noble and proud appearence, he's a slimy, dirty cheater who's not above using vile tricks to win the Tournament and 10% of the final prize which amounts to 100000 millions Yen.

* [[RedBaron Black Baron]]
* {{BFS}}: Hides a broadsword in the back of his coat
* CombatPragmatist: Using an insidious sword? Check. Pretending to be wounded? Check. Disarm your opponent with a pendulum and handshackles? Check. Concealing a Zweihander in the back of your cloack? Check!
* CoolHorse: His large white horse, named Pegasus.
* DirtyCoward: Despite [[BitchInSheepsClothing being a knight and complimenting his opponent, he's this.]]
* ExoticWeaponSupremacy: He uses a "Sabre", with an extremly flexible blade which can be waved to distract his enemies.
* FunnyForeigner: He's surely from Europe, but his name is German and those who bet on him are from France....
* TheReasonYouSuckSpeech: After blocking Yaiba and unsheating his sword he gives one to the KidSamurai about the silliness of Samurais and Knights
* RoyalRapier: His Sabre is more like a Rapier and he is a noble knight. Subverted in that his real sword is a broadsword.

A mighty warrior whose body was powered up thanks to "microunits" which turns him in a restless, powerful fighter who feels no pain and can increase his speed and strenght as he fights. He's the champion of the Platina leader [[CorruptCorporateExecutive Gakuso Shirogane]] and fights Yaiba in an elettrified ring.

* ArtificialHuman: Partially averted, he's fully human with "microunits" planted in his muscles.
* {{BFS}}: His weapon of choice is a very large scimitar.
* CallingYourAttacks: "NIAGARA CRUSHER!!"
* HoistByHisOwnPetard: [[spoiler: Gakuso orders him to absorb more and more energy from the elettrified barrier, causing him to overload and frying all his microunits.]]
* LightningBruiser: And he can become even faster as he fights.
* NobleDemon: Despite his appearance, he's quite noble and even wait for his opponent to stand back on his feet before launching the last blow and give him back his sword.
* ShockAndAwe: Can feed on electricity in order to increase his speed and strenght.
* ShoutOut: He looks a lot like Franchise/{{Terminator}}.
* SinisterScimitar: Wields a dadao as his weapon of choice.
* TopHeavyGuy
* TykeBomb
* VerbalTic: "Yes Boss".


One of the partecipants, is a ninja. He makes a couple of cameos and is one of the strongest partecipants. Apparently he gets defeated by [[spoiler: Onimaru]].

* DoubleWeapon: He's seen wielding a sort of double dagger-like weapon.
* {{Expy}}: He looks like his counterpart in ''VideoGame/SamuraiShodown''.
* {{Fanservice}}: Not the sexual one, but considering that so many other "famous warriors" have appeared, his cameo can count as this for the nippophilies.
* {{Ninja}}
* PlayingWithFire: He's shown spewing fire at his opponent

!!Soshi Okita
Sixth descendant of the legendary Shinsengumi [[MasterSwordsman ''Kensei'']], he's a young and powerful swordsmaster. Extremely good naturated and kind, is also a fearsome opponent with an amazing skill. Wields the famed Kikuichimonji katana.

* CoolSword: His precious [[KatanasAreJustBetter katana]], which covers:
** AncestralWeapon: The sword of his famous ancestor and still and AbsurdlySharpBlade
** {{BFS}}: It looks quite big compared to him.
** NamedWeapons: ''Kiku Ichimonji'' (菊一文字) alias: Chrysanthemum Crest.
** SwordBeam: His ultimate attack allows him to send a wave of bright energy from the ground as a sort of counter attack.
* CounterAttack: Apparently he's just parrying blows with the hilt of his sword. In reality, he's [[LightningBruiser parrying and hitting back with such a speed]] that Musashi can tell it only from Yaiba's wounds.
* CurbStompBattle: An interesting variation: [[spoiler: physically, he totally owned Yaiba, but Yaiba's tenacity totally caught him by surprise and pushed him to withdraw.]]
* IJustWantToBeNormal: For this reason he lacks a strong spirit like Yaiba.
* [[spoiler: ILetYouWin: After noticing that Yaiba's assaults grow stronger and stronger as he gets up and surprised by the ''Toujin'' technique, he decide to quit. Also done in order to avoid to kill Yaiba of course.]]
* KidSamurai: He's slightly older than Yaiba himself.
* ''MasterSwordsman'': One of the greatest ever shown.
* NiceGuy: Also one of the nicest guys in the whole manga.
* OhCrap: Despite his superior skills, he's often surprised and caught off-guard, expecially [[spoiler: when Yaiba manages to unclock the Tojin (Battle Blades) attack on him.]]
* ReverseGrip: The stance for his strongest attack, followed by a full circle movement and a bit of SwordDrag.


[[folder: Others]]
!!Kenjuro Kurogane
!!!voiced by: Creator/BinShimada

Yaiba's father and master, is a happy-go-lucky, lazy man who wanders around the world, but is well known for his skill with the sword. He rarely appears, and he's often shown to be drunk. In the last Arc, is revealed in the beginnging that he might be an impostor who killed Yaiba's true father and kidnapped him. Yaiba will eventually meet him at the Oda Nobunaga Tournament. [[spoiler: He actually Is his true father, (his mother lied to Moroha out of despair) who abandoned his wife in order to become a master samurai. In order to test Yaiba's skills, he trains Onimaru untill the latter become as strong as himself and let him fight with Yaiba. He eventually makes peace with Yaiba's mother.]]

* TheAlcoholic: He drinks quite a lot.
* CovertPervert: Never miss a chance to grope Sayaka's butt. [[UnfortunateImplications Wait a minute...]]
* CrouchingMoronHiddenBadass: Ohh boy....
* DemotedToExtra: In the anime, which not only ends earlier, but also shows him only in the very first episode.
* FriendToAllLivingThings: He's quite a touch with wild animals. [[spoiler: As he explain to Onimaru, it's because his spirit his in perfect balance.]]
* [[spoiler: LetsYouAndHimFight: He teaches Onimaru everything he knows, so that Yaiba will face someone exactly as powerful as him.]]
* '''MasterSwordsman''': [[spoiler: Pratically the strongest swordsman in the series if Onimaru's performance is a hint.]]
* NoodleIncident: Apparently, he once stole Musashi's sword Kotetsu.
* OldMaster: Not really old, but still he taught Yaiba many useful techniques.
* ParentalAbandonment: Well, he raised Yaiba in the Jungle, but after that he basically vanishes
* TheRival: To Raizo Mine.
* TheUnfought: [[spoiler: In 24 volumes he never, ever drew his sword against an opponent.]]

!!Raizo Mine
!!!voiced by: Creator/TesshoGenda

Sayaka's father, and an espert Kendoka. He's an old rival of Kenjuro.

* InformedAbility: We don't now how skilled he is in kendo.
* TheRival: To Kenjuro

!!Sayaka's Grandmother
!!!voiced by: Reiko Suzuki

Sayaka's Grandmother, she's an old, small kendoka, and really skilled.

* BrokenPedestal: She was shocked to find out that her Idol Musashi is a withered, tiny old man.
* DeadpanSnarker
* LightningBruiser: She's really fast despite her age
* MamaBear: Almost took on Onimaru when he threatened Sayaka to know Yaiba's whereabouts
* MiniatureSeniorCitizen
* NeverMessWithGranny: She's implied to be far stronger than Raizo.

!!!voiced by: Creator/KappeiYamaguchi

A small nerdy kappa who inhabits the Darkness Orb. After witnessing Yaiba's strong will, he manage to leave the orb as well, but gets captured by Onimaru. He's later freed by Yaiba.

* AmusingInjuries: Poor fellow...
* BigDamnHeroes: Sort of: he pops out the Orb just in time to prevent Yaiba's fall into the Darkness.
* ButtMonkey: Heck, when even the Spiderman can beat the crap out of you....
* {{Kappa}}

!!!voiced by: Shigezo Sasaoka

A giant Kappa that guards the only exit from the Darkness Orb. Yaiba manages to beat him with his new Kazaguruma attack, that break his head-shell.

* AttackOfThe50FootWhatever: He's really big!
* BreathWeapon: Can spit fire
* FluffyTheTerrible: Yaiba and Jubei didn't expect such a terryfing guy...
* ImAHumanitarian: He apparently lives on those who stay trapped in the Orb
* {{Kaiju}}: Yup!
* {{Kappa}}: A serious case of Our Kappas Are Different!

!!!voiced by: Creator/KoujiIshii

The Mighty Dragon God, he appears as an old samurai wielding a katana. His duty is to protect the Earth from Kaguya and other evil threats. After surviving his tasks, Yaiba is allowed to take his power, the Ryujin Orb. Is also revealed that a thousand years earlier he defeated Kaguya and Gekko. [[spoiler: After Kaguya's second defeat, he goes away with the Orb. He reappears during the Orochi Arc to stop Onimaru, and in order to protect Yaiba he's hit by Dark's Delta Zone, and he manage to drag the Darkness Demon with him as he's sent to another dimension.]]

* BadAssMoustache
* BattleAura: and Dragon-Shaped too!
* CoolOldGuy
* InstantAwesomeJustAddDragons: His BattleAura
* {{Jerkass}}: He acts like one at the beginning, but it seems he was just faking it.
* KatanasAreJustBetter: Uses one while fighting
* [[spoiler: TheMagicGoesAway]]: [[spoiler: After Kaguya's defeat, he leaves the world with the Ryujin Orb. He comes back in the Orochi arc]].
* PhysicalGod: apparently
* {{Samurai}}
* [[spoiler: TakingYouWithMe]]: [[spoiler: To Dark]]

!!Nadeshiko Yamato

A beautiful lady-warrior who appeared in a really short filler story. She wants to marry Yaiba and she's ready to fight for Mine's Dojo. It's revealed that it was a huge misunderstanding...

* AccidentalMarriage: When she was younger, Yaiba saved her from a leopard and she fell in love with him and asked if she could "Cook for Him". Yaiba accepted. (Granted, he thought she was a chef).
* BladeOnAStick: She uses the "Shinai" version of a naginata. That means, a naginata with a bamboo curved blade.
* DesignatedGirlFight: With Sayaka, but only because she had already bet the crap out of Kojiro and Musashi. No, no {{Fanservice}} for you.
* HeroicBSOD: She took a huge shock when Yaiba instantly recognized her as "The Girl who likes cooking!". Poor lad.
* LadyOfWar
* PetTheDog: When she runs away after her defeat, Yaiba stops her and encourage her to get even stronger.
* YamatoNadeshiko: [[MeaningfulName Obviously.]]