King / Gale Raregroove
Voiced by: Tessho Genda (JP)
Dark Bring: Decalogue, Black Zenith, Gate, Monster Prison, Warp Road
The co-founder and commander-in-chief of Demon Card. He used to be Gale Glory's best friend, but something happened in his past that destroyed his family and tore their friendship apart. King now causes misfortune wherever he can in an attempt to draw his old friend out and make him suffer.
- Big Bad: He serves as the first main villain of Rave Master for the first quarter of the manga, which amounts to two-thirds of the anime, by virtue of being the initial leader of Demon Card. Once he's been dealt with, he is quickly succeeded by his long-lost son, Lucia.
- BFS: His Decalogue, the Evil Counterpart to Haru's Ten Powers Sword.
- Death Equals Redemption: Once he's finally been freed from his Dark Bring's control, he destroys Demon Card HQ and stabs himself with Glory's sword while declaring the end of Demon Card. Unfortunately, he never counted on the Oracion Six foreseeing his betrayal and rebuilding Demon Card stronger than ever before with the help of his long-lost son, Lucia.
- Disc-One Final Boss: He is the first legit Big Bad of the series before his son picks up after him.
- Dying as Yourself: All of his Dark Brings are destroyed in the fight against Haru and Gale Glory, leaving him to die as the good man and friend to Glory he used to be.
- Evil Counterpart: He serves as one for Gale Glory, whom shares his name and, originally, his noble ideals with before tragedy drove King down the path of darkness. His sword, the Decalogue, is also this to Haru's Ten Powers Sword.
- Fallen Hero: King and Gale Glory founded Demon Card together as a defense force against demons. Once Glory retired, however, King's inferiority complex drove him to use the power of Dark Bring to make Demon Card more powerful, which influenced its rise as the evil organization everyone in the world knows it as, and led to the tragedy that destroyed his friendship with Glory.
- One Steve Limit: Averted; he shares the same name as Gale Glory, leading to a misunderstanding when the heroes come to believe that Demon Card might actually be led by Haru's father.
- We Used to Be Friends: Glory and King were once the closest of friends, with the same name and birthday as each other, until King fell under the sway of Dark Bring and turned Demon Card evil. However, their friendship didn't truly end until Glory inadvertently caused the deaths of King's wife and (apparently) their son in an attempt to bring him in, leading King to kill Glory's wife and make sure he'd suffer without his family for ten years. Once King is finally freed from his Dark Bring and takes his own life, the two Gales reaffirm their friendship.
- Wicked Cultured: According to his profile, he listens to classical music as a hobby.
Voiced by: Soichiro Hoshi (JP)
Dark Bring: Decalogue/Neo-Decalogue
The world's most powerful sorcerer, and mentor of the Oracion Six's Haja. He is Demon Card's most powerful ally, but doesn't officially join them until the time comes to initiate Project DR.
- Evil Old Folks: In spite of being a horrible human being, he's also the strongest sorcerer in the series, almost killing the entire cast. Plus he's Lucia's grandfather, and a disgusting sadist.
- Given Name Reveal: During his battle with the Rave Warriors, Shakuma reveals that his full name is Shakuma Raregroove, and that he's the father of and grandfather of King and Lucia, respectively.
- Greater-Scope Villain: He is the one who kicked off the conflict of the entire series, using the Sinclair to cause the Overdrive and making sure his offspring would continue the war he started.
- The Unfettered: He wants to destroy the "fake" parallel world his ancestor created that led to his family being cursed, and he doesn't care how, with his own life being secondary to his Evil Plan.
- Villainous Breakdown: After being hit by Elie's Etherion, he goes from being a Perpetual Frowner with Prophet Eyes to a disgusting monster who gloats about his evil deeds.
- Walking Spoiler: He is King's father and Lucia's grandfather, the last king of the Raregroove Kingdom, and a horrible Sadist who started the war that plunged the world into chaos purely because he hates living in a "fake" parallel world where he and his family are cursed.
Oracion Six (Oración Seis)
The elite generals of Demon Card. Each member bears a Six Star Dark Bring, which allows them to manipulate a different elemental force to their will.
- Dub Name Change: Their name in Japanese is Oración Seis, which is loosely Spanish for "Six Prayers". The official English publications only translate the "Seis".
- Elemental Powers: Each member specializes in a different element-based Dark Bring: Shuda is fire, Reina is air, Jegan is trees, Berial is earth, Iulius is ice, and Deep Snow is water. Haja, the leader, is adept in all elements.
Voiced by: Hitoshi Bifu (JP), Richard Epcar (EN)
Dark Bring: Unknown
The general of the Oracion Six, also known as Haja the Infinite. He acts as temporary leader in the lull between King and Lucia's rule. Like Sieg, he hails from the town of Mildian with the same apparent goal of protecting the timeline, but he isn't quite so willing to convert to the light.
- Big Bad Wannabe:
- Dragon with an Agenda: While he is viewed as the second-in-command of Demon Card, he's secretly plotting to overthrow them with the help of his fellow townspeople from Mildian, which itself turns out to be a ruse so he can obtain supreme power for himself.
- Evil Sorcerer: He's one of the most powerful wizards in this setting, and is also a devious schemer obsessed with power.
- A God Am I: His endgame is to become a Physical God.
- Gratuitous Japanese: His first attire has kanji on his collar that reads "Gogasha", which refers to an incredibly high number that nears the infinite, referring to his ridiculously high mana pool.
- Interim Villain: As the highest ranking member of Demon Card left after the death of King, the first Big Bad, Haja winds up warming the seat as the main villain for the next Big Bad, Lucia.
- Not-So-Well-Intentioned Extremist: At first it appears he's working together with the people of Mildian to preserve the natural order by any means necessary, but he's really plotting to rule the universe with infinite magic.
- Red Baron: He's known as "Haja the Infinite" due to his endless supply of magic power.
- The Starscream: He schemes against Demon Card to rule the world for himself.
Voiced by: Soichiro Tanaka (JP)
Dark Bring: The Earth
The Demon Count, a ruthless Sentinoid who boasts being the most powerful of the Oracion Six. He's usually seen accompanied by a flying bat-like monster called Boi Boi. Berial's Dark Bring is The Earth, which freely alters the terrain around himself.
- Arrogant Kung-Fu Guy: He has a rather cocky demeanor most of the time, though he shows fear when confronted by Haja or Megido.
- Blood Knight: He destroys a giant city known for its steel wall defenses just to kill time. He also expresses boredom when Haru is unable to hurt him, and he's the first of his group to accept Lucia once he hears his plans of war and destruction.
- Dishing Out Dirt: He uses his Dark Bring to attack people with stone fists and shift the ground under their feet.
- Early-Bird Cameo: He shows up once before the battle with King after destorying a town out of boredom, but has no role until after Lucia escapes from prison.
- Horned Humanoid: He has horns that make him look more demon-like. He wears a hood that conceals them during Lucia's coronation.
- Informed Ability: He's supposed to be the strongest general, but all the others give the heroes a much harder time. He does, however, deliver a Curb-Stomp Battle to Haru during their first battle, and he only objectively fights them on two occasions, the second of which happens much later in the story.
- Meaningful Name: His name is derived from "Belial", one of the demons of the Ars Goetia.
- No-Sell: The first time he fights the heroes, he's able to catch Haru's sword with his teeth and tank his Blue Crimson attack no effort.
- Now That's Using Your Teeth!: He blocks Haru's Explosion sword with his canines, essentially taking an actual explosion to the mouth with no collateral damage.
- Our Monsters Are Different: He is a Sentinoid, a demi-human monster who hails from the Mystic Realm.
- Pest Controller: He's seen commanding an army of demonic insects in his final appearance.
- Really 700 Years Old: His profile states he's 202 years old.
- Red Baron: He's given the title "Demon Count" in his profile.
- Right-Hand Cat: His winged monster pet, Boi Boi. It lasts longer than Berial himself, hitching a ride in Ruby's hat for the Final Battle to cause trouble until it's finally killed by Musica.
- Shaping Your Attacks: He mostly turns the earth into stony fist-like structures to punch people to death.
- Villain Forgot to Level Grind: He battles the heroes twice: once when Haru only has two Rave Stones, and again when he has all four. He remains the same level of strength both times. The second time ends with Berial getting killed in a Single-Stroke Battle against Haru.
Voiced by: Akira Sasanuma (JP)
Dark Bring: Armue D'Etoile
The Frost Magic Swordsman.
- An Ice Person: His ice Dark Bring can freeze his enemies' movement for short periods of time.
- Gratuitous French: His Dark Bring's name, "Armur D'Etoile", is French for "Star Armor".
- Spell My Name with an "S": His name in the official Tokyopop translation is Iulius, which was also used in the anime dub before being changed to "Julius". After Del Rey took over, they changed his name to Yurius.
Five Palace Guardians
- All There in the Manual: Most of their background information is revealed in their character profiles in the manga.
- Informed Ability: They're said to have powers greater than 1,000 Demonoids, yet they go down quicker than most of the other villains who appear later in the series.
- Our Demons Are Different: With the exception of Let, every member of the group is a Demonoid.
- Punny Name: Every member's name is derived from an English word that begins with "ma" in Japanese with that character removed, each tying into their abilities as well: "multi-angle" (Ltiangle), "mallet" (Let), "maracas" (Racas), "marionette" (Rionette), and "marron glace" (Ron Glace).
- Quirky Miniboss Squad: They're the first fully assembled squad to appear in the series, not counting the Oracion Six. Every member is also an odd-looking and behaving Demonoid.
- The Stoic: Every member wears a serious expression. In some cases, this makes them The Comically Serious when they do anything funny.
- We Hardly Knew Ye: With the exception of Let, the Palace Guardians are taken out before anything of significance be learned about them.
Voiced by: Yusei Oda (JP)
Dark Bring: Transparent
The captain of the Palace Guardians, also known as the Dead Angle. His Dark Bring, Transparent, can render himself and other objects invisible.
- Authority Equals Asskicking: He's the leader of the Palace Guardians, and the most powerful.
- The Captain: Holds this rank among the Palace Guardians. Racas also calls him "Mon Capitan".
- Combat Tentacles: His Weapon of Choice resembles a tentacle that can impale enemies.
- The Dragon: As The Captain of the Palace Guardians, he serves as one for King in the Tower of Din arc.
- Hero Killer: Even though he goes down quickly, he comes very close to actually killing Musica, who has to pull a Deliberate Injury Gambit to beat him.
- Invisibility: He has invisible weapons and can make himself unseen. Musica only overcomes this and beats him after he wraps Ltiangle's weapon in silver so he can see it.
- Literally Shattered Lives: What becomes of him after he's defeated by Musica, who uses his silver to crush his body.
- Really 700 Years Old: He's 115 years old, according to his profile.
- Red Baron: He's called the "Dead Angle" for his powers of invisibility, allowing for multi-angle attacks .
- Spell My Name with an "S": The English dubbers spell his name as L'Tiangle.
- Villainous Breakdown: He immediately panics once Musica pulls a Deliberate Injury Gambit to get a hold of him and kill him, as he never expected Musica to fight back like that.
Voiced by: Hitoshi Bifu (JP)
Dark Bring: Rhythm Counter
- Accent Adaptation: The official English translations of the manga and anime give him a Latino accent.
- Beware the Silly Ones: Although he's the silliest member of his group, he's a cunning and dangerous fighter just like they are.
- Catchphrase: Every time Ltiangle is in the room, Racas always turns to ask, "Ain't that right, Mon Capitan?" every time he finishes a thought.
- Combat Pragmatist: Racas keeps hidden while Haru and Let fight in order to study Haru's rythm and know how to counter him.
- Counter-Attack: He uses a Dark Bring that grants him this ability.
- Plucky Comic Relief: He is the most comical of all the Palace Guardians, which helps add some extra levity to the otherwise serious Tower of Din arc.
- Red Baron: "The Counterattacker".
Voiced by: Kosuke Okano
Dark Bring: Shadow Puppet
The Shadow Master. His Dark Bring is Shadow Doll, which lets him control people's movements through their shadows.
- Attention Deficit... Ooh, Shiny!: Rionette is easily distracted by strange-looking creatures such as Griff, which creates the opening the heroes need to destroy his Dark Brink and beat him.
- Informed Attribute: His profile calls him the most cruel of the Palace Guardians, but apart from slowly choking Remi with a Neck Lift, this trait of his isn't showcased.
- Intangible Man: On top of his Shadow Pin powers, his Dark Bring turns his body into a shadow and makes him impervious to physical harm.
- Red Baron: "The Shadow Master".
- Rhymes on a Dime: He speaks entirely in rhyme in the English dub, to chilling effect.
- Shadow Pin: He can make people stop moving by stepping on their shadows.
- Squishy Wizard: His shadow powers make him dangerous to deal with, but once his Dark Bring is destroyed, Elie makes short work of him with her Tonfa Blasters.
- Vocal Dissonance: The English dub gives him the voice of a middle-aged woman, which makes him sound more unsettling with his already creepy appearance.
Voiced by: Soichiro Tanaka (JP)
Dark Bring: Needle Pain
His Dark Bring is Needle Pain, which creates giant needles and spikes.
- Animated Armor: He appears to be this, with no living being seen inside that armor of his.
- Ax-Crazy: He bellows about his desire to kill people attacks without restraint.
- Hulk Speak: He always speaks in fractured sentences across all versions.
- Spell My Name with an "S": He's referred to as "La Grace" in the English dub.
- The Worf Effect: Despite being big and tough, he's the weakest of the group and goes down easier than any of the other Palace Guardians.
- Younger Than They Look: According to his profile, this full-sized armored monster is only two years old.
Voiced by: Naoki Makishima
Dark Bring: Compass Code
The caretaker of the Tower of Din.
Dark Bring: Submarine Soil
- Spell My Name with an "S": His name is meant to be "Thership", from "mothership".
- Spell My Name with an "S": His name is meant to be "Chinegun", from "machine gun".
Voiced by: Koichi Tochika (JP)
Dark Bring: Full Metal
A small-fry Demon Card member tasked with killing Shiba when he's believed to still possess the power of Rave.
- Demoted to Extra: His screentime in the anime is significantly reduced to a single flashback scene where he nearly kills Shiba, and never receives a Dark Bring of his own.
- Extra-ore-dinary: His Dark Bring turns his entire body into metal, which makes him indestructible against ordinary attacks and Rave's Explosion.
- Starter Villain: He's the very first villain to appear in the series, and serves to establish Demon Card's cruelty and ruthlessness.
Voiced by: Tomohisa Aso (JP)
Dark Bring: Smoke Bar
Voiced by: Kazuya Ichijo (JP)
Weapon: Beast Sword
Dark Bring: Real Moment
- Achilles' Heel: Subverted. Lance's Beast Sword and Dark Bring have two major weaknesses: one is that without his Dark Bring, he can't create illusions if his sword is blocked halfway through a swing; the other is that he can only make his illusions real for a split second at a time. However, knowing these weaknesses doesn't do squat for Haru because he lacks the skill to properly exploit them.
- Ax-Crazy: He's an absolutely bloodthirsty madman who kills because he enjoys it. Combined with his skills as a Master Swordsman, he becomes a truly dangerous foe.
- Confusion Fu: His standard method of fighting is to create illusions of animals to distract and disorient his enemies while he moves in for the kill. His Dark Bring takes it a step further by giving him the option to make his illusions real, leaving Haru uncertain of when to guard against the illusions or Lance.
- Hard Light: On their own, his Beast Sword's illusions are perfectly harmless. Combined with his Dark Bring, however, these illusions become tangible for a split second and cause real damage.
- I Surrender, Suckers: A textbook example. Once his Dark Bring is destroyed and his weaknesses are exposed, Lance humbly grovels for mercy so he can get the drop on the heroes once their backs are turned. Haru completely buys into it and persuades the skeptical Galein to at least settle for a single punch. Fortunately, Haru's reflexes are quick enough to let him land the finishing strike when Lance lunges at him.
- Master of Illusion: His Beast Sword can create illusions of vicious animals with every swing, which proves useful for catching enemies off guard. Combined with his Dark Bring, these illusions can become real.
- Master Swordsman: He's in a whole other league beyond Haru when it comes to swordfighting during their battle, proving that no amount of Flaw Exploitation can bridge the gap in skill between them.
- Villainous Breakdown: He enters full-blown panic mode when his arm gets chained and Galein, who is Not Afraid to Die, pins him down wanting Haru to run his sword through them both. The anime goes an extra step by having him wail on Haru in a berserk rage without getting a chance to break through his defense until he finally gives up, making his I Surrender, Suckers moment just a little more convincing.
- Wake-Up Call Boss: Considering Shuda retreated once the odds were against him, and Georco was only tricky to beat because Haru didn't have his sword (in the manga), Lance is the first enemy to have Haru completely on the ropes of their fight.
Voiced by: Miki Nagasawa (JP)
Weapon: Dancing Fangs
- The Atoner: She joins Go in helping the people of Ska Village rebuild from the damage their rain machine caused, with one of the chapter covers showing her pulling her weight to do just that.
- Beauty Is Never Tarnished: Subverted. Rosa is terrified when she nearly gets her face cut by her own blades, but Elie saves her out of sympathy. Shortly afterward, she gets her cheek comically swollen when Go punches her by accident.
- Designated Girl Fight: Her primary role in the story is to give Elie someone to fight.
- Easily Forgiven: Like Go, Rosa is forgiven for enabling Go's weather machine to keep running for five years, nearly destroying the livelihood of everyone in Ska Village. However, unlike Go, Rosa doesn't have the excuse of being under the Dark Bring's influence.
- Entertainingly Wrong: Like Go, Rosa comes under the impression that Elie is the Rave Master when she barges through the doors demanding to see the "Thunder Man", assuming Go is Sieg.
- Humble Pie: She's a vain actress who thinks she's more than a match for the Rave Master, who she thinks is actually Elie. When Elie defeats her, saves her from getting scarred by her own weapon, and sets the record straight that Haru is the real Rave Master, it knocks her down enough pegs to get her to make up for everything she's done.
- Slapstick Knows No Gender: Her face gets comically bruised when Go accidentally punches her the moment he regains consciousness.
Poosya and Rugas 70
Poosya voiced by: Tanuki Sugino (JP)
Rugas 70 voiced by: Hiroaki Ishikawa (JP)
Dark Bring: Glue Tear (Poosya)
Dark Bring: Escape
Doryu Ghost Attack Squad
Dark Bring: Vampire
Dark Bring: Giant
Dark Bring: Noah's Wind
Dark Bring: Last Physics
Dark Bring: Anastasis
- Big Bad Wannabe: His control of one of the Sinclairs gives him the power to rival King, the first Big Bad, and he comes close to merging with Endless for his own purposes. Ultimately, though, he's still only second fiddle to King's successor, Lucia, who comes to personally dispose of Hardner for his betrayal once he's been beaten.
Dark Bring: Lightning
- Animal Theme Naming: Like Lunar, each member is named after a different animal in French. Giraffe, Leopard, and Koala speak for themselves, while the other three are subject to Spell My Name with an "S": "Lukan" (requin) means "shark", "Reevil" (Lièvre) means "hare", and "Sean Vivera" (chien viverrin) means "racoon dog".
- Gratuitous French: The members' Theme Naming, combined with animal names, though more than half their members suffer from Spell My Name with an "S" that this isn't readily apparent.
Dark Bring: Acid Rule
The leader of Six Guard.
Dark Bring: Twister
Dark Bring: Dress Up
Dark Bring: Machinery
Dark Bring: Hard Breath
- Spell My Name with an "S": His name comes from the French word lièvre, meaning "hare".
Dark Bring: Dux Dormir
- Spell My Name with an "S": His name comes from the French phrase chien viverrin, meaning "racoon dog".
Four Great Demon Lords
- Red Baron: He's called "Megido, Flame of Hell".
- Beauty Is Never Tarnished: Zig-Zagged. Her regenerating bones ensures that she will fully recover any damage she takes. Thus she gets her beautiful face graphically smashed in by Julia, yet it pops back to normal just seconds later. This ultimately doesn't last when Julia breathes fire down her throat, which melts her eyes out and dislodges her teeth.
- An Ice Person: She can turn everything around herself into an icy wasteland an instant.
- Perpetual Frowner: She always wears the same sad, mournful frown. The only way anyone can tell what other emotions she feels is when she says so.
- Red Baron: She's called "Jiero of Despair".
- Sealed Evil in a Can: She first appears sealed in a block of ice in a human city as opposed to the Mystic Realm. Once summoned by Lucia, she immediately awakens and proceeds to level the whole place.
- Blood Knight: He sees battle as nothing but a form of entertainment, no matter how weak or strong his enemies are. This further motivates Let to take him down, since he used to be exactly like Uta.
- Graceful Loser: For all his obsession with strength and victory, Uta takes his own death fairly well once he recognizes Let as the Dragon King himself, King Jaava, accepting that he never stood a chance against him.
- Red Baron: He's called "Eternal Uta".
- Shadow Archetype: Given that all he cares about is fighting, Uta represents everything Let moved beyond after meeting Haru.
- Worthy Opponent: It's his goal in life to seek out enemies worth fighting. In the end, he acknowledges his killer, Let, as one.