This page lists members of the Buddy Police, a law enforcement agency that deals with illegal activity involving monsters. Click here to return to the main character index.
Dragon World (Season 1), Star Dragon World (Hundred onwards), Darkness Dragon World (As Purgatory Knight)
Gao's rival and a world-famous Buddyfighter. He is a member of the Buddy Police, who fight against people who use Buddies and cards for evil.
His Buddy is Jackknife Dragon, and he fights with a Dragon World deck. After joining Disaster, his Buddy is Purgatory Knights Leader, Demios Sword Dragon, and he uses a Darkness Dragon World Purgatory Knights deck.After training in Dragon World and overcoming his past as well as Purgatory Knight clone, he gains the new Star Dragon World with an upgraded Jackknife Dragon.
- The Ace: He's good at Buddyfighting, and is one of the top cops of the Buddy Police.
- Broken Ace: ...However he lost his family when he was young, and would do anything to ensure justice is served. Even if it means permanently turning his only family into a mindless weapon. After he is unmasked in his fight with Noboru, he rants about how he had to become an adult because children have no power and he couldn't protect his family.
- Always Lawful Good
- Adorably Precocious Child: At 13, he's the kind of person who's in charge, and still be cute at the same time.
- Back-to-Back Badasses: He and Gaito became a tag-team◊ in some episodes of Triple D.
- Badass Adorable: He have his sweet and adorable moments.
- Berserk Button: Tasuku visibly gets angry at Noboru treating him like a child.
- Bishie Sparkle: When he luminizes his deck.
- Black Knight: As the Purgatory Knight
- Blue Is Heroic: Tasuku is a well-known member of the Buddy Police, despite his young age and not only has blue hair but is also heavily associated with the color blue.
- Brains and Brawn: He's the brains and Gao's the brawn
- In Triple D, Tasuku is the brains and Gaito's the brawn.
- Brainy Blunette
- Catchphrase: "Let's go to work!" in season 1. This eventually leads the other characters to realize that the Purgatory Knight is him in disguise.
- ChildProdigy: Has to be to be working for the Buddy Police at his age.
- Clueless Chick Magnet: Has a legion of fangirls, the odds that he knows that are slim.
- Cool vs. Awesome: He's awesome to Gao's cool.
- Cry into Chest: Happened in episode 62 after he apologizes to his Buddy.
- Cry Laughing: Happened in episode 62 when he saw Jackknife in his mini form.
- Dark and Troubled Past: His only family appears to be his Buddy, and he was found alone on a mountain with him. His time alone has lead him to believe that adults shelter kids too much.
- Dark Is Evil: As the Purgatory Knight, he dresses in black armor and uses a Darkness Dragon World Deck.
- Deuteragonist: For the first two seasons of Buddyfight. He also shares this role with Gaito in Triple D but leaves this role to Kanata in X.
- Evil Counterpart: Several of the Darkness Dragon World cards he uses as the Purgatory Knight are this to the cards he used before joining Disaster.
- Expy: A member of the main cast who becomes a Fallen Hero and whose new deck is a dark counterpart to his old one. Aichi, is that you ?
- Fake Defector: His joining Disaster was all just a ruse so he could learn more about Kyoya's plans and try to thwart them from the inside.
- Fairy Sexy: His Dragon Force of Joy makes him look like a fairy.
- As a bonus: when his Dragon Force evolves into "Style of Justice" which still makes him a fairy.
- Fallen Hero: He joins Disaster and begins using a dark Purgatory Knights deck out of his frustration at the corruption of the Buddy Police and how children have no power.
- Final Boss: He's the last opponent Gao faces in X2 which also makes him this for Gao's story.
- For Great Justice: He fights for the Buddy Police
- Friendly Rivalry: He and Gao are nothing but friendly and respectful towards each other.
- Frills of Justice: His Dragon Force of Joy.
- His Dragon Force "Style of Justice" in episode 44.
- Frilly Upgrade: He received his Dragon Force of Joy in Triple D.
- In episode 44, his Dragon Force of Joy becomes Dragon Force "Style of Justice".
- Growing Up Sucks: Played with. Tasuku tries to be more mature than he should be at his age, actively participating in the Buddy Police and in general acting like an adult, and this isn't shown to be bad. However, once he becomes Purgatory Knight, it's deconstructed heavily, as it's clear that he's forced himself to change to cope with losing his family and the pressure of this coupled with his frustration at the corrupt Buddy Police leads him to Disaster.
- Hair-Contrast Duo: Tasuku's◊ hairstyle shows a protective, good, and nice personality, while Gaito's◊ hairstyle shows a moody, tough, but soft side.
- Heavenly Blue: His new ability is introduced: Dragon Force of Joy in episode 29 in Triple D.
- Also his newly evolved Dragon Force "Style of Justice".
- Heroes Prefer Swords: Has a preference for swords as his item, particularly the Dragobrave Gao gave him. In fact, one of the obvious signs of the Purgatory Knight's true identity is that he uses a virtually identical sword, Purgatory Sword Fatal, as his go to item. Averted in Triple D and X where he switches to using guns and a ring, and zigzagged in X2 where the weapon he uses changes depending on which deck he uses.
- Heterosexual Life-Partners: He and Gao.
- Improbable Age: He's member of the Buddy Police and often going on dangerous missions on alone. This is because he doesn't want adults sheltering him, and wants to show that he can do things on his own. It's ruthlessly deconstructed once he becomes the Purgatory Knight, with his Motive Rant about children being powerless making it clear that Tasuku is still broken by being unable to save his family, and acting like an adult in the Buddy Police was his way to try and cope.
- Interstellar Weapon: His items in his Star Dragon World deck.
- Justice Will Prevail: When he's working for the Buddy Police, also His Dragon Force "Style of Justice"
- Kid Detective: He's in the Buddy Police.
- Kid Hero: He's a member of the Buddy Police and he's only 13.
- Lunacy: His Star Dragon World shows some signs of moon power and Star Power.
- The Lancer: Often acts as this to Gao
- Lawful Good
- Knight Templar: Falls into this when he finally confronts Disaster, even being willing to sacrifice Jack to bring them to justice.
- Light Masculine and Dark Masculine: Tasuku's mature but funny personality and Gaito's gothic and cool personality in some episodes of Buddyfight Triple D◊.
- Light Guy Dark Boy: Tasuku's is the light to Gaito's dark boy. Here's proof◊
- Not So Above It All: Chastises Jack for laughing at a criminal fighter's rather ridiculous core gadget...before realizing just how ridiculous it is and laughing at it himself.
- Only Sane Man: On most of his days.
- Out of Focus: In X where Kanata Oozora takes his role as the resident
- Power Crystal: His newly evolved Dragon Force has them in his hair and one big crystal on his forehead.
- Power Glows: His Dragon Force of Joy (and his Dragon Force "Style of Justice")
- Pretty Boy
- Long-Haired Pretty Boy: When using Future Force.
- Promotion, Not Punishment: Defied and subverted. Upon returing from Dragon World, Tasuku gets reprimanded by Commander I for his unwarranted depature and loses his title as the Buddy Police Boy Wonder, but soon gets a promotion as the head of the Buddy Police Youth Division. In short, Tasuku does get punished (a relatively mild one at that) and recieves a promotion.
- Red Eyes, Take Warning: Subverted. He's very kind-hearted.
- Red Oni, Blue Oni: Blue Oni to Gao's red oni
- Screw the Rules, I'm Doing What's Right!: He ignores his suspension and uses Future Force to save a boat full of people in episode 22. Flat out gives up on the Buddy Police in a future episode.
- Star Power: His Star Dragon World deck in seasons 2 and 3.
- Star-Spangled Spandex: His armor when he uses Star Dragon World deck in season 2.
- Super Mode: Future Force, which he can activate through his core gadget.
- Jackknife Gold Ritter turns out to be a Deconstruction of one, as it forces him to turn Jack into a mindless weapon and it's heavily implied that Jack cannot return from this state.
- Dragon Force of Joy and Dragon Force "Style of Justice" in Triple D.
- Tearful Smile: It happens sometimes during a Tasuku/Jackknife relationship.
- He's extremely happy when Gao and Bal helped reunite with Jack in episode 29 of Triple D.
- Tears of Joy: Happened in episode 29 in Triple D when he is happy that Gao and Bal found evidence during the tournament. Therefore, his tears of joy are the reason why they triggered his Dragon Force of Joy.
- Technician vs. Performer: He's the technician to Gao's performer.
- Teen Superspy: Spying on the enemy in seasons 1 and 2; with or without the Buddy Police.
- Tender Tears: Happens alot, typically if Jack is involved.
- Took a Level in Badass: He gains a Star Dragon World deck after training on Dragon World. Jack also gets an upgrade.
- Turn in Your Badge: Initally gets suspended after Sueroku takes over the Buddy Police, but then he is relieved of his duties in episode 33. Eventually, he gets so fed up with Sueroku's refusal to respond to people losing their Buddy Monsters he outright gives up on trying to return.
- Unishment: When he finally does return to the Buddy Police, he is put in charge of Gao, Tetsuya and Zanya. While it is technically a demotion for his time as part of Disaster and for leaving for Dragon World afterward, his duties aren't all that different.
- Worf Had the Flu: Gao had to face Ikazuchi and wound up losing because Tasuku couldn't use the Future Force as a result of his core gadget being damaged.
- You Gotta Have Blue Hair: Tasuku's hair is light blue.
- Young and in Charge: Most of his days.
Tasuku's direct superior in the Buddy Police. He knows Captain Answer.
- Janitor Impersonation Infiltration: Resorts to this to keep an eye on Sueroku Shido and Seiichi Nobari when they take over.
- Opaque Lenses: His eyes usually aren't visible through his glasses, though there are exceptions.
- Out of Focus: Gets more-or-less replaced by Count Dawn in Hundred, only showing up as a source of information or as part of a gag at his expense.
- Reasonable Authority Figure: He is generally supportive of Tasuku and is the first to stand up for him when Detective Shido shows up.
- Sitcom Arch-Nemesis: To Count Dawn, who is introduced with the two of them bitching at each other over a minor annoyance.
One of Tasuku's coworkers in the Buddy Police who relays information to Gao and company after Sueroku Shido takes over. He considers Captain Answer to be a childhood hero. His Buddy is Card Burn.
- The Cracker: Shown to be able to break through computer security.
- Friend on the Force: Helps the heroes find Disaster's base.
The only known female member of the Buddy Police. She is very skilled with computers and is originally from England. She has no known Buddy.
- Badass Normal: She isn't a Buddyfighter, but her hacking skills are impeccable.
- Bridge Bunny: Her main role with the Buddy Police.
- Cool Big Sis: Serves as one for Tasuku, often telling him he can talk to her if he needs to.
- The Cracker: She's great at hacking, managing to help take down both the corrupt Nobari and Sueroku, and get into Doctor Gara's files.
- Fangirl: Of the End of the World band. She can't even stand up straight if they are around, so much so that Gao and Drum had to go with her when she need their registration signatures lest she pass out.
- Phenotype Stereotype: A British woman with blonde hair and blue eyes.
- Protectorate: After J Genesis returns to jail, she is entrusted with looking after Gemclone.
Magoroku Shido's father and also a special detective. Takes Over Buddy Police in Episode 21.
- Corrupt Cop: It's obvious that he just doesn't give a damn about protecting the innocent. He denies Tasuku permission to use Future Force despite the fact that if he didn't do anything, a boat full of innocent people would have been killed, and even suspends him for it. Also refuses to investiate appearances of Darkness Dragon World Card, shrugging them off as mere myths. When Kiri starts attacking Buddyfighters, he refuses to do anything about it, despite the fact that Kiri is taking other peoples Buddy Monsters upon victory.
- He's also affiliated with Disaster.
- Jerkass: See above
- Smug Snake: He's very condescending toward the members of the Buddy Police.
- Strong Family Resemblance: Appearance-wise, he looks like an older Magoroku.
- He also acts a lot like Magoroku.
A special detective who takes over the Buddy Police in Episode 21. He eventually becomes the new Commander in Episode 43.
- Corrupt Cop: He refuses to give Tasuku the authorization to use the Future Force even when lives were at risk. He also prevents the Buddy Police from investigating the appearence of Darkness Dragon World cards and the Grim Reaper's thefts of Buddy Monsters. Unsurprisingly, he's affiliated with Disaster.
- Fat Bastard: A rather portly Corrupt Cop.
- Jerkass: See above.
Kazane's father as well as an officer of the Buddy Police. He died four years before the start of the story. His buddy was Count Dawn.
- Death by Origin Story: He died by Tasuku's origin story, namely during the same disaster where Tasuku met Jack.
- Posthumous Character: Died four years before the start of the story, during a disaster.
The newest and youngest member of the Buddy Police, currently being trained for the job by Tasuku. She is first introduced as one of Gao's opponents in the World Buddy Masters tournament representing Hero World. She uses a Crew Trooper deck with Koyomi-Class Fifth Fleet, Satsuki as her Buddy.
- Berserk Button: She hates being called a kid, though whoever makes the comment is generally spared her wrath as she always takes it out on Gao.
- Hot-Blooded: Her heart's in the right place, but she has a tendency to attempt missions and jump to conclusions before getting any more than the most basic of information.
- Punny Name: Her name comes from the Japanese word for "admiral". Fittingly, her Buddy is a massive battleship that she can crew with other monsters.
- Running Gag: Regardless of who angers her, she always goes after Gao.
Jackknife Dragon Findar the 100th/Star Guardian Jackknife Dragon/Star Guardian, Jacknife "Aster"/Star Dragoner, Jackknife
Tasuku's Buddy, An Armordragon from Dragon World. Jack met Tasuku soon after the Great Disaster, the two now considering each other family. After intensive training in Dragon World, he was turned into a Neodragon of Star Dragon World by Armordiety Dynamis.
- Armored Dragon: As with many Dragon World monsters, his attribute being
- Badass Adorable: His mini form.
- Beast and Beauty: Jackknife's the beast to Tasuku's beauty.
- Beam Spam: His first impact form, which uses Crossnize to boost its power, attacks with this.
- Conspicuous CG: Except when in Sleep-Mode Size.
- Dangerous Forbidden Technique: ...But it also erases Jack's will, basically turning him into nothing more then a weapon. He gets better.
- Averts this later on as, he learns to keeps his consciousness in Gold Ritter as a result of his and Tasuku's training, allowing him and Tasuku to truly fight as one.
- Deadly Upgrade: His life was put in danger by becoming Star Guardian Jackknife Dragon as Neodragons cannot exist in the present without being properly prepared for it in Star Dragon World.
- Equippable Ally: Deconstructed. In his most powerful form, he counts as an item card that attacks like a monster, but the drawback is that it renders him catatonic and under the direct control of his human Buddy. A more benign example is the Crossnize Mechanic, which he uses with other Star Dragon World monsters as a Neodragon.
- Golden Super Mode: Has had various ones over the course of the series.
- Has one in the form of the aptly-named Jackknife "Gold Ritter" - Indestructible, 5 critical 10,000 attack and defense, penetrate and even if the opponent can attack over it, Tasuku only takes 2 damage.
- Gains another one in Hundred with Radiant Guardian, Jackknife "Aster"
- The original one returns in X2 and takes this trope Up to Eleven with "Gold Ritter" itself getting another upgrade in the form of Jackknife "Granthese".
- He is revealed to have gained another one in Ace: Golden Dragoner, Jackknife.
- Heroic RRoD: His upgrades start breaking down on him after he becomes a Star Dragon World monster. Variable Cord uses his remaining power to return to the future with an empty promise to have him repaired. Given the state of the future, though, the promise is a moot point. By the time Tasuku finds him again, he's been rendered blind and nearly animalistic by the damage. It takes intervention from the entity that originally gave Tasuku the Gargantua Punisher to repair Jack.
- Hollywood Cyborg: Implied to be one as a Neodragon, complete with the upgrades breaking down and causing him serious harm at one point.
- Limit Break: Able to become an impact monster thanks to Bal.
- Mecha Expansion Pack: An organic variant, Jackknife's gimmick is being able to freely change forms with different abilities by simply playing them on top of the previous ones. From a visual standpoint all of these different forms are just different sets of armour for Jack.
- Carrying over to Star Guardian Jackknife Dragon, he has the ability to crossnize and power up by adding dragonarms monsters to his soul, which from a visual standpoint, become pieces of equipment for Jack.
- Papa Wolf: He and Tasuku view one another as family. Jack himself is incredibly protective of Tasuku and was particularly determined to get him back from Disaster.Jack (to Demios): I won't let you take Tasuku from me!
- We see this side of him again when Tasuku's finally able to travel to the future. Despite being severely weakened by the lack of maintenance, as well as losing his eyesight, Jack still bursts out of his card and wildly attacks any threat to Tasuku.Jack: I'll tear you from limb to limb and devour you!
- We see this side of him again when Tasuku's finally able to travel to the future. Despite being severely weakened by the lack of maintenance, as well as losing his eyesight, Jack still bursts out of his card and wildly attacks any threat to Tasuku.
- Sleep-Mode Size: Has one, but he apparently refuses to use it.
- Finally uses it in episode 62 while visiting Tasuku at a hospital, and continues to use it afterwards.
- Shock and Awe: Jackknife "Thunder Storm"
A mecha from Hero World. Tsurugi Takihara's Buddy.
- Combining Mecha: With Card Rhino and Card Serpent to form Ultimate Card Burn.
- Humongous Mecha: When not in Sleep-Mode Size.
- Master of Illusion: Can create holographic projections of people, which he uses to spy on Shido's party to make sure nobody catches onto Commander I's plan.
- Sleep-Mode Size: Unusually, he just shrinks himself rather than chibifying.
- Super Mode: Ultimate Card Burn.
Seventh Omni Earth Lord, Count Dawn
A vampire from Legend World introduced in the second season. He is a senior member of the Buddy Police despite being a monster himself and has a rivalry with Commander I. He was formerly Daichi Fujimiya's buddy and briefly joined his daughter Kazane as a temporary Buddy near the end of Hundred.
He is the seventh of eight Omni Lords responsible for protecting Earth.
- Big Good: At first, he shares this role with Commander I in season two but after the Buddy Police headquarters are damaged by Yamigedo, he takes over as the sole Big Good.
- By-the-Book Cop: Insists on doing everything by the book.
- High-Class Glass: Wears a monocle over his left eye.
- Horned Hairdo: Omni Lords are identifiable by the number of horns on their head. Count Dawn's includes four in his hair. While none of them look all that much like horns, they're all counted as such. The other three are his moustache, which counts for two due to being symmetrical, and his beard.
- Our Vampires Are Different: This one comes from another world.
- Reasonable Authority Figure: Acts like this for the youth division of the Buddy Police.
- Sitcom Arch-Nemesis: To Commander I. Count Dawn's first scene has the two of them in a petty argument.
- Supernatural Gold Eyes: He's a vampire and has gold eyes.
- Surveillance Drone: Has small one-eyes bats that function as these. They aren't Weakened by the Light like he is.
- Time Abyss: He actively helped the Fuchigami clan maintain Yamigedo's seal for thousands of years and hasn't aged a day in that time.
- Weakened by the Light: Exaggerated and subverted at the same time. Even decorations in the shape of the sun cause him to disintegrate, but it doesn't seriously harm him, instead causing him to retreat to his coffin. The sun on Gao's shirt causing this to happen is a Running Gag.
- Though he does sometimes mention that it's often painful to frequently regenerate.
- At one point he uses it as a convenient way to return to his coffin at headquarters.
Koyomi-class Fifth Fleet, Satsuki/Overturn Battleship, Satsuki G
Ku Teito's Buddy, a massive living airship from Hero World with the Battleship attribute. She is highly protective of her human Buddy and utilizes the Station mechanic, which allows cards with the Crew Trooper attribute to be placed in her soul.
- Drop Ship: Her Station mechanic is essentially this.
- Living Ship: A massive, intelligent airship.
- Palette Swap: Her Overturn form recolors parts of her hull to black and gold.
- Size Shifter: On par with Yamigedo in this regard. Her mini form is a hand-sized smartphone.
- Sleep-Mode Size: Satsuki's mini form is a flying smartphone.