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Characters / The Kindaichi Case Files

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Main Protagonists

    Hajime Kindaichi
Voiced by: Taiki Matsuno, Kappei Yamaguchi (first anime film)

The main character of the series. The grandson of famous detective, Kosuke Kindaichi, Hajime picked up the tricks of his trade from him, using his great detective skills to solve the crimes occurring in the series.

  • Achilles in His Tent: In the "Seven Mysteries of Fudo High" he briefly considers dropping the case because his carelessness resulted in Miyuki getting attacked and hospitalized. Appropriately enough, it was Miyuki herself, upon waking up, who talked him into getting back into action.
    • Saki's murder also left him nearly catatonic for a whole episode, that he didn't even rebuff the accusation that he's now the primary suspect.
  • Affectionate Nickname: Called "Hajime-chan" by Miyuki. This becomes important in "Hong Kong Kowloon Treasure".
  • Amateur Sleuth
  • Asleep in Class: Expect him to do this or concentrate on other things (eating, playing mobile games) instead of paying attention during the class. Mind you it's not because of part-time work.
  • Big Eater
  • Big Ol' Eyebrows
  • Brilliant, but Lazy: He is very intelligent (his IQ is 180) to the point that first depiction of him mentions that he can get better grades than Miyuki if he tries but he gets very bad grades because he doesn't care about school.
  • Cannot Spit It Out: He is coy about his feelings for Miyuki, and the one time he does manage to spit it out, his confession is muffled by the marching band.
  • Catchphrase:
    • "I swear it in the name of my grandfather!"
    • "All the mysteries are solved."
    • "The killer is among us!" (not when he confronts the killer directly or lays trap on them)
  • Chick Magnet: Miyuki obviously falls for him, Reika is shown to be Miyuki's main rival, and other one-time only girls have shown to be interested in him. He doesn't mind.
  • Childhood Friend Romance: With Miyuki.
  • Chivalrous Pervert: He is something of a skirt chaser, but he is still more or less a gentleman.
  • Clear My Name: Several times. The most notable case including "Kindaichi the Killer" and "Life Gamble of Kindaichi" (case series).
  • Crouching Moron, Hidden Badass: Except for a few close friends, everyone at school thinks Kindaichi is an idiot.
  • Enemy Mine: Joins forces with Takato in the Rosenkreuz Mansion case, on the condition that Takato would turn himself in after it's over. This includes, ironically enough, proving Takato's innocence when the mansion's other guests figure out his identity and pin the blame on Takato for the murders.
  • Faking the Dead: Near the end of the Kindaichi the Killer case Akechi shoots Kindaichi during a hostage situation. Akechi reveals the ruse once he's alone with the "corpse" and Kindaichi's friends, and Kindaichi explains it's the only way he can get the police heat off his back and investigate the initial crime scene more thoroughly.
  • Five-Finger Discount: He's able to pickpocket stuffs in earlier appearances, sometimes uses bumping as one of the tricks; Detective Tawarada's police notebook, One of his teachers' matches and hotel coupon, even his seniors' panties. This probably results from years of learning magic with his grampa. This habit lessens as more series come out.
  • Good Is Not Soft: When he is throwing Shut Up, Hannibal! talks to many unrepentant culprits.
  • Guile Hero: Likes to lull prospective suspects into thinking he's just a kid and/or an idiot, just in time to spring a mental trap on them.
  • History Repeats: To his chagrin, Kindaichi finds himself trying to solve serial murders in locations that are all-too-familiar to him: The Opera Hotel and Hotel Europa.
  • Let's Get Dangerous!: When it comes time to solve a case he drops the goofball act and turns deadly serious.
  • Lured into a Trap: When Kindaichi manages to deduce the culprit(s) but does not have enough material evidences, he will not hesitate to lure the culprit(s) into a trap he had set, so the cops would be able to "catch them red-handed" instead of wasting time at the crime scene.
  • Protagonist Title: His last name instead of his first name.
  • Reality Ensues: Having witnessed so many deaths in his teenage years most probably took a toll in Kindaichi that, 20 years later, he doesn't want to play detective anymore. (Unfornately, he's a Doom Magnet, so he winds up having to solve cases again. Very reluctantly.)
  • Running Gag: People, especially Detective Tawarada, sometimes read his name as "Kindani" ("Dani" in Japanese means "mite").

    Miyuki Nanase
Voiced by: Akiko Nakagawa

The childhood friend and next door neighbor of Hajime Kindaichi, or "Hajime-chan". Miyuki is an honors student at her and Hajime's high school. Many of her classmates and teachers wonder why she hangs around a guy like Kindaichi, but Miyuki knows that Kindaichi is a lot more than he lets on.

  • A-Cup Angst: Live-action version only. Kindaichi is the one who comments on it often.
  • Borrowed Catch Phrase: Live-action version only in tweaked "Ijinkan Hotel Murder Case". Hillariously, she says "I'll solve this case in the name of Hajime-chan's Grampa!". The rest is still the same though.
  • Buxom Is Better: Let's just say she gets a LOT of commentary on her bosom.
  • Childhood Friend Romance: With Hajime.
  • Damsel in Distress: Sometimes. Subverted in The Magical Express where the puppeteer of hell apparently kidnapped her but it turned out to be just a puppet.
  • Dude Magnet: Has a few guys chasing after her besides Kindaichi.
  • Frame-Up: Happened once in "Vampire Legend Murder Case".
  • Girl Next Door
  • Hammerspace: Her purse. Played for laughs only once, however, here.
  • Informed Attractiveness: She is Kindaichi's Love Interest, is the most desired girl in her high school and in most of the cases at least one guy is interested in her. She has exactly the same body type as other girls in the series and her face is very normal too. Later stories place some emphasis on her somewhat generous bust size.
  • Not So Dire: Kidnapped in Kowloon Murder Case so the killer can impersonate her. Once Kindaichi catches the killer, he mounts a rescue...and learns that Miyuki wasn't in any danger at all. Her "kidnapper" only told her a lie about a national emergency, keeps Miyuki well-provided for in a hideaway and treated her like an important guest.
  • Put on a Bus: 20 years later, Miyuki is now a flight stewardess, and thus cannot join Kindaichi in his new adventures.
  • Rapunzel Hair: Reaches down to her waist.
  • Satellite Love Interest: To Kindaichi. Even her other relationships (Wakaba in the mummy case) or hobbies (her drama club's membership in the Phantom of Opera case) are only plot devices to drag Kindaichi to the next mystery (and she is very Out of Focus in those cases).
  • Second Love: Believe it or not, she's not Kindaichi's first love. His first love is one of his and Miyuki's friends in elementary school who became a top model, Takamori Masumi.
  • Student Council President: Translation seems to be juggling between her being this or Class Representative.
  • Tsundere: Type B. Miyuki is usually a sweet and even tempered young lady, but she gets pissed whenever Kindaichi does a perverted act.
  • The Watson

    Isamu Kenmochi
Voiced by: Jurota Kosugi, Isao Natsuyagi (anime film)

A Tokyo homicide police inspector skilled in Judo. After meeting Kindaichi in the first case of the series, Kenmochi has always supported Hajime and his deduction prowess.

  • Badass Baritone: Has a deep voice and can and WILL hand out an ass beating if need be.
  • Borrowed Catch Phrase: Happens once in "The Headless Samurai" when he borrows Kindaichi's.
  • The Big Guy: Occasionally serves as this due to his police training and experience.
  • Charles Atlas Superpower: The suspect of the week compared his grip to a gorilla.
  • Cool Old Guy
  • Demoted to Extra: Is now under retirement in the 20 Year series, having only appeared sporadically so far. He can't accompany Kindaichi in his new cases anymore, although he can still pull a few strings to help if need be.
  • Frameup: He was framed in "Inspector Kenmochi Murder Case".
  • Friend on the Force: All Hajime needs is a call from Kenmochi (and/or Akechi) to instantly verify his credibility as a sleuth.
  • Intergenerational Friendship: With high school-aged Hajime and Miyuki.
  • Jerk with a Heart of Gold: A mild case. He was depicted as a jerkass in his manga debut (Opera House Murder Case). After Kindaichi and everyone else found the first dead body, Kenmochi who were in a holiday in the island said to a crying Miyuki "I'm the one who should be crying, this case ruined my holiday!". Later appearance lessens his "jerk" part and increases his "gold".
  • Overshadowed by Awesome: Kenmochi is perfectly competent as a detective and policeman, it's just that the points of comparison are Kindaichi and Akechi who are insanely gifted.
  • Perma-Stubble
  • That One Case: The Marina Togami suicide, which is the driving point of the Kenmochi the Killer mystery. Togami, a student of Kenmochi in kendo, was kidnapped and tortured (perhaps even more), and in an attempt to escape from her kidnappers, she killed herself. Oddly, the reason that Kenmochi treats it as if he failed wasn't because it was unsolved, but rather because the perpetrators couldn't be convicted (with one pulling a Karma Houdini through Screw the Rules, I Have Money!) because they were minors at the time of the crime. The plot of Kenmochi the Killer involves the suspects, now at legal age, being targeted and seemingly killed one by one, and Kenmochi suddenly pulls a vanishing act at the time of the murders.

    Kengo Akechi

A police chief superintendent and Kenmochi's supervisor. Akechi is a rival of sorts for Kindaichi, but they both a mutual respect for each other.

  • The Ace: Let's see, he is a former straight-A student, Todai graduate, amateur chess player (who ranks somewhere among the world's best amateur players), trained violinist (who can play for a professional quartet of a piece he played for the first time), capable fencer (who once beat the national champion) and can pilot planes too. If that's not enough, he's also a qualified wine expert capable of taking sommelier's duty and also speaks French fluently.
  • Always Someone Better: Zigzagged. In terms of sleuthing skills, he is either equal to Kindaichi or slightly below him (especially in the older series, where his arrogance frequently causes him to miss out on clues that Kindaichi notice). However, he is superior to Kindaichi in pretty much everything else.
  • Bishie Sparkle: Later depictions of him has this as background tone in several occasions. Kindaichi even lampshaded it in spin-off gag manga.
  • Bishōnen: He's suave, elegant, and is considered very handsome by most females he comes across.
  • Borrowed Catch Phrase: In a small case featuring Kindaichi as prime suspect and Akechi as the detective, he deliberately says "The mysteries have been solved", even he lampshaded it.
  • Broken Ace: A mild variant. In his first appearance, his overconfidence in his deduction ability led to him being completely sidetracked by the real murderer's false hints. Later stories reveal he's still haunted by several ghosts in his past, like the murder of a friend in his high school circle (by another friend in the same group, one very close to him at that) and the failure of his father Akechi Sr. in solving the famous bank heist 20 years ago featured in House of Wax, which led to his father's early retirement and his obsession with finding out the answer for the case.
  • Chick Magnet: The ladies do love him.
  • Gratuitous French: He's shown to be a fluent one in a conversation with a French native speaker.
  • Not So Above It All:
    • Unabashedly goes to humiliate Kindaichi by exposing the latter's Porn Stash while Kindaichi was supposed to be given an award from the police director. He can then be seen struggling (and almost failing) to keep his composure when his scheme worked.
    • When his subordinate suspects Kindaichi to be a Serial Killer due to his presence in various crimes (even 20 years later), Akechi has a barely-controlled laughing fit.
  • The Rival: To Hajime Kindaichi. Their investigative prowess are evenly matched.
  • Smart People Wear Glasses: Smug as he may be, he's got the smarts to back it up.
  • Turn in Your Badge: In Snow Demon murder case, seeing Kenmochi's faith in Kindaichi's skills, Akechi challenges the two of them on who gets to solve the mystery first. Should Kindaichi (and thus Kenmochi) lose, the latter's job will be compromised.
  • You Gotta Have Blue Hair: He has grey hair.
  • Young and in Charge: He's technically Kenmochi's superior despite being 20 years his junior.


Recurring Characters

    Reika Hayami
Voiced By: Mayumi Iizuka

A pop singer that Kindaichi and Miyuki befriend during a case, Reika is a very popular idol and aspiring actress. After their first case together, Reika has been smitten with Kindaichi and takes every chance she can get to be alone with him.

  • Daddy's Girl: Very fond of her father. It later turned out that he kidnapped her as a child after murdering her real father. However, she believes despite how she was adopted that he genuinely loved her.
  • Dark and Troubled Past: Hoo-boy, where to START? Firstly, her father was murdered in a botched kidnapping with the kidnapper eventually adopting and raising her and then HE was murdered after murdering someone else in order to keep his past a secret, her long-lost brother was the one who murdered her adoptive father and then died in an avalanche just as Reika find out who he was. Not exactly the friendliest of backgrounds.
  • Frame-Up: She was framed in "Alchemy Murder Case".
  • Genki Girl: Very perky and friendly.folder
  • Interrupted Declaration of Love: she tried to confess her feelings to Kindaichi at the end of her introductory arc.
  • Idol Singer
  • Love Triangle: In one with Kindaichi and Miyuki, though she's a lot more forthcoming about her feelings than Miyuki is.
  • Missing Mom: Heavily implied to be Keiko Kitamura, a veteran dramatic actress who was willing to pay the ransom when Reika was kidnapped.
  • Nice Girl: Though she teases Miyuki on occasion when it comes to Kindaichi.
  • Trauma Button: She doesn't like stuffs around her neck, clearly seen when she freaked out right after Kindaichi gave her his scarf around her neck. It's because she saw how her real father was killed by strangulation. This also applies to her brother.

    Yoichi Takato
Voiced By: Kenichi Ono

Originally the culprit in the Magical Train murder, Takato has become one of the few recurring antagonists in the series. A cold-blooded sociopath and criminal mastermind, Takato is the Moriarty to Kindaichi's Sherlock Holmes and is one of the few people who can match wits with him, and has in fact even outwitted Kindaichi.

  • Amateur Sleuth: In his spin-off series that takes place in his high school years, Takato has to solve a complex serial murder involving heavy use of magic tricks to prove his innocence when the police suspect him (not unjustifiably so, because even as a kid Takato was off). But this is Takato, so the case also ends up being his first murder - he disposed of the killer instead of turning him in.
  • Angel Face, Demon Face: Once Kindaichi starts putting dents on his entire façade, meek, unassuming Takato turns to the side, takes off his glasses, transforming into the cold, calculating bastard that he is.
  • The Bad Guy Wins: Don't expect him to get caught if he shows up. Heck, in his first appearance he gets away with his goals and escapes prison shortly thereafter.
  • Bad Habits: Takato has disguised himself as a Catholic priest or minister more than once, and knows enough about Christianity to pull it off.
  • Badass Baritone: A very smooth example.
  • Big Bad: The closest thing the series has to one, being a recurring villain behind the crimes of others.
    • He's the Greater-Scope Villain for the 20 Years Later series. In spite of facing death row, he has trained at least a dozen batch of new killers (one of which is a Black Widow type that was the first killer Kindaichi exposed in the 20 Years Later series) that he set loose for Kindaichi and company to catch.
  • Big Brother Instinct: In Mansion of Rosenkreuz, he received a letter from the mysterious Rosenkreuz who claims to hold his little sister hostage and threatens to kill her if he doesn't show up at the titular mansion. Despite said sister being a product of his biological father (whom he has never met) and another woman and he has never so much as heard of her existence, Takato still recruits Kindaichi to come with him to protect her and promises to turn himself in afterwards as a reward. Even when it turns out she is the murderer and her sole purpose for contacting him is to set him up as her scapegoat, Takato still chooses not to hurt her and stops her suicide attempt instead.
  • Bitch in Sheep's Clothing: In his debut appearance, he posed as a nice but timid amateur magician of a magic troupe. Of course, this is all a facade, and by the end of the arc he reveals his true colours as a sociopathic criminal mastermind.
  • Broken Ace: He's a straight-A student, Teen Genius magician and skilled pianist, but behind all this brilliance is a complete sociopath who wouldn't blink at murder.
  • Calling Card: Roses (as a homage to his mother) and puppets (hence his moniker the Puppeteer of Hell); if one or both of these are present in any significant way in a case, there's a good chance Takato's involved.
  • The Chess Master: Is a brilliant criminal mastermind who is a magician with schemes. Usually they don't fail because of a flaw in his own design, but due to the human error of the people he manipulates.
  • Crazy-Prepared: Having a background as a magician he is ALWAYS ready with a backup plan to escape the authorities.
  • Dissonant Serenity: He is composed to the point of it being CREEPY.
  • The Dreaded: Everyone gets unnerved when he's involved in a case.
  • Even Bad Men Love Their Mamas: The case that introduced him as a murderer was motivated by his desire to avenge his late mother, who was killed by her disciples who wanted to steal her magic tricks.
  • Evil Counterpart: To Akechi. Both graduated as top-students of Shuoh High School and are considered geniuses due to their incredible talent in music, foreign language, and many other things. They also have suave, confident personalities that brings elegance in everything they do. But while Akechi becomes a police officer who fights for justice, Takato is a criminal mastermind who delights in murder.
  • For the Evulz: Why he assists murderers and criminals. His first crime was for revenge, but he has no personal stake in any others. Unlike most culprits, Takato has no sympathetic motives and is clearly just doing it for the hell of it.
  • From Nobody to Nightmare: He was just a magician in a magic troupe, his only pedigree being that his mother was a brilliant magician (and even then nobody knew he was her son). Afterwards, the man becomes a criminal mastermind who can outwit Kindaichi and the national authorities.
  • Gene Hunting: the closest thing the series has to a serialized storyline is Takato's search for his true father, a mysterious architect whose creations are the setting of and the main puzzle of some of Kindaichi's mysteries, including the Rosenkreuz mansion and the labyrinth-esque Antlion Lab, among others.
  • Generation Xerox: Takato commits murder to avenge his mother, who was killed by her students to claim ownership of her brilliant magic tricks. In Mansion of Rosenkreuz, his half-sister Tsukuyomi Giselle's motivation for murder is also revealed to be revenge for her mother, an accomplished rose breeder who was killed by people who wanted to steal the blue rose she cultivated.
  • In the Blood: His mother was a world-famous magician, and he inherited her aptitude. It is implied that his talent for crime is passed down from his biological father.
  • Joker Immunity: Even if he does get caught he always finds a way back to the criminal underworld. Fittingly, he even seems to prefer purple suits much like the Joker.
  • Lonely Rich Kid: He comes from a rich family, but his father is very strict, and apparently didn't allow him to have much fun.
  • Loophole Abuse: He once promised Kindaichi that he would turn himself in provided Kindaichi could protect Takato's half-sister in "Rosenkreuz Mansion Murder Case". He did surrender to the police, but he didn't say that he would turn himself in and stay in prison for his crimes. Another reason he decided to break free was because he found "piece of puzzle" to discover his lineage.
  • Manipulative Bastard: Takato easily manipulates gullible people to be his pawns for his so-called artistic crimes.
  • Narcissist: He engineers criminal plans just to show off how good they are.
  • Never My Fault: His Fatal Flaw. He insists his plans don't fail because of a design flaw but because of the people he manipulated screwing up.
  • Non-Action Big Bad: Typically doesn't get involved directly in a case (aside from formulating the plan) as they have nothing to do with him, except when his clients messed up his artistic plan quite bad.
  • The Red Baron: The Puppeteer of Hell due to his expertise in manipulating others while not getting involved directly in a crime.
  • The Sociopath: Holds no value for human life and commits crimes just for the thrill. Akechi says it best in that Takato is a born criminal. A few perceptive people already observed sociopathic behavior in him even as a student, such as his adopted father, the police inspector in the first murder he was involved in, and the culprit of that case.
  • Something About a Rose: Most of Takato's appearance will involve red, roses, or both. His first appearance as Puppeteer of Hell involves him handing out roses to people and "Rosenkreuz Mansion Murder Case" happens in a cross-shaped mansion surrounded by roses as the name implies. Yes, you can include him in Bishōnen category.
  • Start of Darkness: According to his A Day in the Limelight Spin-Off, Takato Case Files, Yoichi didn't develop a fascination for murder until someone from his school's Magic Club starts murdering their fellow members for the express purpose of eliminating his possible Morality Pet and corrupting him.
  • Street Performer: When he's not in the prison, he mostly tells stories for children which mimics what Kindaichi will face in that very case (it's because he's involved in it) or performs street magic shows also for children (he also did this during his high school life with wider range of audience). In both performances except during school life, he uses clown mask in order to hide his appearance.
  • The Tragic Rose: His mother died from falling. She fell on a white rose stained in her blood to become bloody red. This is the reason why he uses red roses in his first appearance; to remind his target of his mother's death.
  • Troll: Of the highest order considering that he does a lot of things just to piss off Kindaichi (after all, Kindaichi is likely to show up if it's a really big case).
  • "Well Done, Son!" Guy: He claimed that a "Heartwarming meeting between long-lost mother and son" was too cliché and decided to go down this path toward her mother so that he could show that he could beat her in magic. It helps since her mother was also his inspiration and taught him a few magic tricks.
  • We Will Meet Again: He always says a variation of this to Kindachi as he makes his Villain: Exit, Stage Left.
  • Worthy Opponent: To Kindaichi, being one of the few people capable of matching Kindaichi's intellect.
  • Villain Respect: He has a lot of respect for Kindaichi for uncovering his schemes and exposes his involvement in it. To the point that, whenever Takato disguises himself as a street performer, a "renowned detective" is always the main character in a puppet show (basically predicting the events of the mystery Kindaichi will tackle) he narrates for a young audience.
  • Villains Act, Heroes React: Whenever Takato is involved in a case, he is almost always the one pulling the strings, and deliberately roping Kindaichi (and sometimes Akechi) into the case to make things more interesting. Also, despite Takato being a fugitive, we almost never see the police force actively putting any effort to find and capture him without Takato's own prompting.
  • You Have Outlived Your Usefulness: Does this frequently when the people he's manipulating have gotten caught.

    Itsuki Yousuke
Voiced By: Hiroaki Hirata

A freelance writer Kindaichi and Miyuki met for the first time in "The Legend of Lake Hiren". Somewhat of a jerk, but becomes one of Kindaichi's allies as time goes on. His real name is Kimura Shinsuke.

  • Call-Back: In "Antlion's Moat Murder Case", Itsuki was given dark-blue cloth and dark-blue room during a psychology experiment. He understood the meaning behind the color and told Kindaichi and Miyuki that it was related to his hydrophobia, fact first revealed in "Legend of Lake Hiren". It's important since he's been absent for so long in New series except one minor appearance in one case's final chapter.
  • Characterisation Marches On: One of Kindaichi's closest friends and allies, it is quite hard to believe that he was such a jerkass and a borderline-Hate Sink for most of his debut arc.
  • Everyone Has Standards: He'll accept any good news (and good money along with it), but he still has his journalistic code of ethics. One example is that he asked his publisher of Goryu's manuscript to remove the name of the killer in "Kindaichi the Killer" when the name appeared since the killer was forced and tricked to help a doctor committing organ trafficking formthe sake of his child. He was also about to exploit the Lake Hiren tragedy but backed off when he discovered something that disturbed him.
  • Jerk with a Heart of Gold: His first appearance was somewhat of a cold jerk, questioning one victim's wife how she felt after seeing her dead husband's body. Later appearances show more of his soft side.
  • Late-Arrival Spoiler: If you read chapters where he appeared before his debut arc, you'll know he's not the culprit in that one.
  • Mistaken for Pedophile: Kindaichi thought he was one when he decided to adopt Mizuho, his friend's only child since said friend passed away.
  • Pen Name: His business colleagues call him Itsuki, and it's his pen name. Also, despite knowing his real name, Kindaichi and Miyuki settle with this nickname. This become vital in solving one particular case.
  • Smoking Is Cool: Well, he's often seen smoking and he's passable in term of coolness...
  • Why Did It Have to Be Snakes?: He, along with almost all of other suspects in Lake Hiren Murder Case, is afraid of water. This becomes an obstacle in his debut appearance since he couldn't find help to tackle Jason, something the real killer had calculated.

    Gentleman Thief 
Voiced By: Asako Dodo

First appear in "Gentleman Thief Murder Case". A cunning thief able to fool police so far. Being Master of Disguise, nobody knows yet the face underneath the disguise but so far it's revealed that Gentleman Thief is a woman.

  • Catchphrase: When her disguise is revealed (and the disguise is someone new), she'll say this: "X is really a Y, I'm just borrowing his/her name and face."
  • Frame-Up: Somebody else is using her name to commit murder in her debut appearance. Anime original episode in Kindaichi R2 anime also has this plot element.
  • Gentleman Thief: In-name only since she's a girl in nature. She has some equivalent too though.
  • Master of Disguise: Somewhat downplayed since the face mask was made by her colleague named Kurogawa. Despite that, she can impersonate male voice perfectly.
  • Phantom Thief: Warning his/her target and leaving Calling Card after stealing.
  • Red Baron: God knows what her real name is.
  • Red Herring: Her very name is this in her debut.
  • The Rival: To Kindaichi. After losing to him in "Gentleman Thief Murder Case", she becomes this in every appearance.
  • Samus Is a Girl: Due to her name and her call card symbol (a top hat and a moustache), most people assume that the "Gentleman Thief" is a man. Discovering that she's actually a woman is what clued in Kindaichi about the identity of the fake Gentleman Thief.
  • Shapeshifter Default Form: When unmasking herself after her debut, she'll sometime use Daigo Maki's face underneath the disguise.
  • Troll: She's a big one. Her first appearance when stealing one motif (a tree) from a painting she stole beforehand was by cutting it to resemble her logo. Her way for payback after getting tricked by Kindaichi? Tie him up with a basket full of heavy rocks in the middle of busy street!
  • Voice Changeling: With currently unknown mechanism. She did a good job impersonating Inspector Kenmochi.

    Saki Brothers 
Voiced By: Keiichi Nanba

A pair of brothers consisting of Ryuuta and Ryuuji Saki. Ryuuta Saki is a member of the Mystery Club in Fudou High School. Kindaichi and Miyuki first met him in "Smoke and Mirrors"/"Seven School Mystery Murder Case", and proved to be useful in solving the case due to his seemingly always-present video camera. Unfortuntely, he was killed in "Ijinkan Hotel Murder Case" because he recorded a vital information in revealing one murder trick (he survived in anime though, thus Ryuuji never exist) so that he couldn't help anymore. In manga, his role was replaced by his younger brother, Ryuuji Saki, when Kindaichi and Miyuki met him in "Kindaichi the Killer". Since then Saki becomes one valuable ally in solving several cases throughproviding vital information through his camera.

  • Adapted Out: Ryuuji Saki never appears in anime.
  • Camera Fiend: They will record everything they see, often (if not always) becomes vital in solving case.
  • Dying Moment of Awesome: It's not as grand as most examples, but in his final case, not only does Saki's camera allowed to help tell Kindaichi one of the killer's tricks, but he also posthumously helped unravel the hotel's Dark Secret: a massive narcotics stash, a hidden chamber that can only be accessed by the placements of the hotel's Medusa and Perseus statues.
  • He Knows Too Much: Why the first Saki was killed. His camera recorded the theater actors' script, before and after there were alterations made to it. The alterations in question were what the killer exploited to trick their victim.
  • Insistent Terminology: Kindaichi often refers to Ryuji as "the second Saki" or "Saki no. 2" despite being with Kindaichi for longer than his brother had at this point.
  • It Runs in the Family: Their habit of recording with video camera. Even their father uses the hobby as his job.
  • Killed Off for Real: Ryuuta really died. It was subverted in anime.
  • Love Before First Sight: Ryuuji fell in love with a girl he accidentally recorded on his video camera.
  • Otaku: Of video camera. At least Kindaichi calls Saki this.
  • Running Gag: Everytime Kindaichi has an experience related to Ryuuta's ghost, he'll be in a case. Funnily, 2 most notable appearances are cases where Kindaichi is framed as a murder.
  • Schrödinger's Cast: In the manga, Ryuuta is killed off and Ryuuji takes his place. In the anime, Ryuuta survives and Ryuuji never appears.
  • Sempai/Kohai: Both are Kindaichi and Miyuki's kohai. Ryuuji is still in junior high but still call them "senpai" because they're clearly older.
  • Suspiciously Similar Substitute: Happens only in manga. After the old brother dies, the younger brother takes his position. Both supply information through their camera and act as Kindaichi's and Miyuki's junior. Ryuuji, the younger one, is notably more cheerful that his older brother though.
  • Terrible Artist: Ryuuji tried to draw a potrait of his crush, this is the result.

    Fumi Kindaichi 
Voiced By: Haruna Ikezawa

Hajime's cousin, who sometimes solves cases of her own.

  • Adorably Precocious Child: She acts mature for her age and verbally spars with characters much older than her.
  • Easily Forgiven: Once forgave the man who kidnapped (and threatened to kill) her after she learned his sympathetic backstory.
  • Embarrassing Nickname: Kenmochi calls her "Chibikin" ("Little Kindaichi"), which she detests.
  • Kid Detective: She seems to have inherited her grandfather's keen investigative mind.
  • Remember the New Guy?: Her introduction made it sound like she was involved Hajime's previous cases. Considering the series's loose timeline, we get to see her in side stories where this is true.
  • Wise Beyond Their Years: She's quite clever for her age, and displays very calm and measured behavior when under pressure.

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