Characters / Detective Conan Major Recurring Characters

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    Sumiko Kobayashi
Voiced by Yuko Kobayashi / Yuko Khato (JP), Stephanie Young (EN), Erika Robledo (first Latin-American Spanish dub), Laura Orlázabal (third Latin-American Spanish dub)

Conan and the Detective Boys' homeroom teacher who later appoints herself as their "manager" when they're out solving cases.

She later becomes Inspector Shiratori's girlfriend on account of him remembering that she was the girl he had helped in the past and not the physically similar Sato, whom he had been chasing after originally.
  • Adaptation Dye-Job: Her "Before" appearance was colored brown. Her "Middle" and "After" appearances had her colored as dark blue.
  • Adorkable: Mostly when she acts as the "manager" of the Detective Boys or when she's with her boyfriend, Shiratori, who slips into borderline adorkable status around her.
  • Betty and Veronica: The gentle, Shrinking Violet teacher "Betty" to Sato's aggressive, Action Girl cop "Veronica" for Shiratori's "Archie". Subverted in that Shiratori thought that Sato was his true love he met in childhood...which was actually Kobayashi; besides that, Sato is an Official Couple with Takagi and Kobayashi thought Shiratori was only interested in her because of her resemblance to Sato. Thankfully, it was all sorted out.
  • Beware the Nice Ones: When she thought that Shiratori was only with her because of her strong resemblance to Detective Satou, she remained cold and took quite the distance towards him until she remembered him as the boy who helped her.
    • Even before that there's her whole Sadist Teacher act, which worked so well that only the kids stepping into her rehearsals could undo it.
  • Childhood Friend Romance: With Shiratori. It's also rather curiously played with: They met as children, yes, but unlike the other "childhood couples" they didn't know each other's names and lost sight of each other for decades after their chance encounter. When they met again, adulthood and time had changed them throughly (Shiratori was quite more prideful, Kobayashi was more shy and quiet), he had chased after another woman for a long time believing that she was Kobayashi, and she couldn't remember him. He still recognized her as the "destiny girl" upon laying his sight on her, she later recalled him, and then they got together.
  • Cool Teacher: After her first episode she becomes a more fun, but still firm teacher to her students.
  • Curtains Match The Windows: Her "after" appearance has her with matching black-blue hair and blue eyes, rather than her original light brown hair/black eyes looks.
  • Fangirl: Of Ranpo Edogawa.
  • First Girl After All: Shiratori had always been in love with a girl he befriended when young, and after thinking for some time that she had grown to become Detective Sato (leading to the Love Triangle with Detective Takagi), it turned out "the girl" was Kobayashi-sensei, who to be fair looks a lot like Satou.
  • Flower Motifs: Sakura. Which turn out to be a huge hint that she was Shiratori's true love from childhood.
    Kobayashi: "Because the sakura is the symbol of police officers! Determined, kind, and dignified. It's a flower of justice!"
  • Foil: In contrast of Kobayashi-sensei's physical resemblance to Sato, however, the two women have almost entirely different personality traits: While Kobayashi-sensei is more gentle, softspoken, cautious, and careful in any given situation. Sato is reckless, outspoken, daring, and impulsive.
  • Friend to All Children: Even with her Sadist Teacher act, she was only doing it for the children's sake. After she drops it, she plays the trope completely straight and all the kids adore her.
  • Friend to All Living Things: During her Sadist Teacher act, Kobayashi took care of the plants and fish in secret. Ayumi once caught her doing so.
  • Girly Girl: Towards Sato's tomboy. Rather eagerly lampshaded by Yumi when they meet and she mistakes her for Sato, then is surprised by "Miwako"'s meekness.
  • Hidden Depths: A retroactive example. In Shiratori's flashback to when he first met Kobayashi-sensei, notice how she is acting more assertive when she catches the two grown up thieves.
  • Hot Teacher: More of a cute one, though.
  • Identical Stranger: Without her glasses, Kobayashi looks a LOT like Detective Sato. Which troubles her when Shiratori shows interest in her, as she believes at first he only likes her because of her physical similarity to Sato. (Not to mention, the reason why Shiratori mistook Sato as the girl he liked was because of her looks.)
  • Manic Pixie Dream Girl: Subverted. She was this to Shiratori, but only when they were children. When they meet again as adults and properly get together, she has grown into a more shy and thoughtful person. Nevertheless, Shiratori loves her just the way she is.
  • Meaningful Name: Sumiko, means "lovely child" which reflects her fondness for children.
  • Meganekko: A rare adult version.
  • Morality Pet: Downplayed. While Shiratori is far from evil or a being a straight up jerk, it's all but stated that she brings out the best in him.
  • Nice Girl: One of the friendliest people you'll meet in the series.
  • Official Couple: With Shiratori.
  • Otaku: Of mystery novels.
  • Pet the Dog: Even when she was making herself pass as a Sadist Teacher, Kobayashi couldn't fully hide her kind nature, thus she watered the plants and fed the pet fishes in secret.
  • Rescue Romance: With Shiratori. As children, he supported her when she stood up to shoplifters. As adults, he is one of the persons who protects her when she's targeted by a murderer because she knows too much (complete with a Declaration of Protection), and him giving a "The Reason You Suck" Speech to the culprit that sounded almost exactly like the one he gave to the shoplifters is what makes her remember that he was the boy from their past.
  • Sadist Teacher: Her Jerk Ass Facade. For the reason, see the Shrinking Violet section.
  • Savvy Guy, Energetic Girl: Subverted with Shiratori. They used to fit in the trope [[spoiler: during their first and almost last encounter when they were children , but when they found each other again 20 years later, Sumiko had grown into a much gentler Shrinking Violet and Shiratori was more arrogant than savvy. They still got together.
  • Sensei chan: Downplayed. She only shows traits of the trope when she tries to be the manager of the Detective Kids, but otherwise she's pretty competent and serious in her job and her students love her to boot. And since she has a boyfriend, there's nothing to worry in regards to the Christmas Cake part.
  • Shrinking Violet: After some really bad experiences in her former workplace, poor Kobayashi was so terrified of doing badly in parent meetings that she used to practice in the empty school at night with dolls. The Detective Kids thought she was a witch, though. (And Conan thought she was planning to kill someone else!).
  • Single Woman Seeks Good Man: She was at first attracted to Shiratori for his gentlemanly and protective behavior, but what made her actually fall in love with the guy was seeing him deal a "The Reason You Suck" Speech to the guy who tried to silence her, which lets her remember how he protected her as children in a very similar way and dispelled the belief that he was using her to forget about Sato.
  • Through His Stomach: Once she and Shiratori get together, she begins making bento lunch boxes for him.
  • Tsundere: Type B. See her Beware the Nice Ones section.

    Dr. Tomoaki Araide
Voiced by Hideyuki Hori (JP)

The handsome son of Kogoro's doctor, with the bad luck of being introduced in the case where his dad was murdered. After that, he's been seen around more than once, acting nice to almost everyone and being a possible Romantic Runner-Up.

Later on, it's discovered that the Black Organization member, Vermouth, had been using his image as a cover during her manhunt for Ai Haibara.
  • Gambit Pileup: In the middle of two of these. See the main page for more details.
  • Hospital Hottie: Just look at him!
  • Kind Heartedcat Lover
  • Megane: The glasses he wears highlight his physical beauty.
  • Nice Guy: Even veering into a male Ingenue of sorts, since he's way too gullible sometimes.
  • Romantic False Lead: Was presented as one, thought he's much nicer than the standard. And Ran was more interested in his sweater.
  • Romantic Runner-Up: Sorry, dude. You're nice and all, we all know it... but you're just not Shinichi. He doesn't win even in the Stranger from Ten Years Later OAV, no matter if it's canon or not.
  • Sympathy for the Devil: When he returns to his normal life after Vermouth tried to kill him and took over his identity for a while, most people don't notice a difference and comment on what a good person he is. This causes him to wonder whether his impostor is really evil.
  • Tall, Dark and Handsome: Not as "dark" as others, but pretty tall and very beautiful.

    Jodie Saintemillion
Voiced by Miyuki Ichijou (JP), Gigliola Mariángel (third Latin-American Spanish dub)

Ran and Sonoko's English teacher, an American young woman who's very pretty and friendly.

She was believed to be the Black Organization's Vermouth, but is actually an FBI agent named Jodie Starling looking into its whereabouts; unaware that the real Vermouth has been using her image as a disguise to hunt for Ai Haibara.

After her FBI status is revealed, she resigns from her teaching job and is seen taking part in cases; most of which involve the Black Organization.

Mandatory Naming Note: Jodie Foster as Clarice Starling.

    Rena Mizunashi
Voiced by Kotono Mitsuishi (JP)

A popular TV reporter. She is actually Kir of the Black Organization, but is then revealed to be Hidemi Hondou, a CIA spy having infiltrated the organization.

Mandatory Naming Note: See Meaningful Name, below.

    Eisuke Hondou
Voiced by Junko Noda (JP)

A New Transfer Student to Sonoko and Ran's class who has a somewhat weak health and comes off to be extremely clumsy. He came to Japan to find his sister's whereabouts, that sister being Hidemi Hondou of the CIA, aka, Kir of the Black Organization. He returned home shortly after the discovery, but not before telling Conan that he knew of his true identity, and that he had developed feelings for Ran.

Mandatory naming note: "Hondou" comes from Bondo (ボンド), the Japanese pronunciation of (James) Bond, Eisuke from mystery writer Eisuke Kaito.
  • Beware the Nice Ones: That one time he tracked down Mizunashi Rena's room and was willing to stab her with scissors just to find out where his sister was.
  • Big Sister Worship: To Hidemi. As seen in their flashback, Hidemi has saved Eisuke's life several times, includes giving a large portion of blood donation to him, which later becomes one of plot points that Rena Mizunashi is really Eisuke's sister, Hidemi.
  • Butt Monkey: Always falling on his face.
  • Dark and Troubled Past: Always got in accidents, which at one point, almost led to him bleeding to death. Parents died when he very young. And his only relative, his elder sister Hidemi, mysteriously disappeared.
  • Dude Looks Like a Lady: And how— go back above and check Kobayashi-sensei's picture, and he looks 80% like her.
  • Hidden Depths: Eisuke figuring out Conan's real identity as Shinichi Kudo proves his intelligence is on par with Shinichi/Conan and/or Heiji Hattori.
  • Hopeless Suitor: His talk of bringing Ran to America with him may have been a bluff but he seems to recognize that it wouldn't have worked even if he had been serious about it.
  • Ill Boy: He had leukemia when he was a child, and he got better due to his older sister Hidemi's bone marrow donation. This is a plot point as his blood type changed because of it: he used to be a O, but now he and Hidemi/Rena are AB. All story arcs related to him happened in hospitals. Even when he's not the one admitted.
  • Kansai Regional Accent: He was born and raised in Osaka.
  • The Klutz: He's constantly bumping into or falling over something.
  • Love at First Sight: Tells Conan that he fell in love with Ran the first time he met her.
  • Love Triangle: Invoked and subverted. In front of Conan, Eisuke claims to have fallen in love with Ran and that he wants to take her to America with him. When Conan/Shinichi reacts strongly, he takes it as the hint he needed to guess his secret identity, and then both promises to be one of his Secret Keepers and asks him to protect her in his stead.
  • Masculine Girl, Feminine Boy: with his older sister Hidemi. Hidemi / Rena is Action Girl, The Mole, a CIA agent who infiltrate Black Organization. Eisuke is cute clumsy Dude Looks Like a Lady.
  • Megane: Though he has such a high moe quotient and girlish looks that he could easily pass as a female example.
  • Mixed Ancestry: He is a third generation Japanese-American.
  • New Transfer Student: A new student of Teitan High School. The reason he transferred was to investigate why reporter Rena Mizunashi looked remarkably similar to his missing older sister.
  • Nice Guy: He's polite, kind, and sensitive.
  • Obfuscating Stupidity: Though he is clumsy by nature, more than one of his blunders weren't that casual.
  • Secret Keeper: One of the few people who actually guessed Conan's secret identity correctly, and by himself. This probably put his intelligence on par with Heiji!
  • Smart People Wear Glasses: Eisuke was able to guess that Conan is Shinichi Kudo simply by looking at him and then pretend he was going to take Ran to America with him, so he could get a response from him. It worked!
  • Strong Family Resemblance: Both he and his sister also take after their mother in appearance.
  • Uncanny Resemblance: With his older sister, Hidemi Hondou aka Rena Mizunashi aka Kir. Unknowingly lampshaded by Ran, who notices how the New Transfer Student looks a lot like Rena Mizuhashi herself...

    Masumi Sera
Voiced by Noriko Hidaka (JP)

A rather peculiar New Transfer Student to Ran and Sonoko's class. Like Shinichi and Heiji, she is a high-school detective.

She moved from England to Japan to find out what happened to her brother, Shuuichi Akai, after getting word of his supposed death.

Mandatory Naming Note: Her name comes from Mobile Suit Gundam's Sayla Mass. The family connections are not coincidental.
  • A-Cup Angst: Exclaims "They're due to pop out every day now!" when her small bust is commented upon, and then she insists that her mother has quite large breasts and therefore hers will become this too.
  • Action Girl: Jeet Kune Do practitioner.
  • Amateur Sleuth: Another high-school age detective.
  • Ambiguously Bi: Maybe. She did tease Ran and Sonoko when they first met by saying that Ran's just her type, and also has had quite a bit of Les Yay with her. Meanwhile she also at one point jokes about having a secret boyfriend, and shows a rather strong fondness for Conan/Shinichi.
  • Awesome by Analysis: Like the other high-school age detectives of the series, if slightly less prone to dramatics, Sera has a very good eye for details and is able to largely work out and give detailed explanations of tricks used in crime scenes.
  • Badass Biker: Uses a motorcycle most of time, and once used it to smack a criminal about to kill Conan.
  • Bifauxnen: She's an Amateur Sleuth who at first is mistaken as a Troubled, but Cute guy until she shows up in Ran and Sonoko's class wearing the school's female uniform. In-story she's mostly seen as a tomboyish Biker Babe, and at least one of her friends (Sonoko) has found her pretty in a boyish way.
  • Bokukko: As fitting with her appearance and personality, her pronoun of choice is the boyish "boku"
  • But Not Too Foreign: She claims to have studied abroad in America, but Conan eventually realizes little slips, such as calling soccer "football", that confirm she was actually in the United Kingdom. The flashback to when Shinichi and Ran first met Masumi confirms her mother was British and that she was indeed born and raised in the UK. Interestingly, both her parents have Japanese surnames (Sera and Akai), implying that despite her mother's extremely European features, there's Japanese heritage on both sides of the family.
  • Catch Phrase: Sera's catchphrase upon the conclusion of a case is "case closed".
  • Cute Little Fangs: She has prominent canines that sometimes show when she smiles.
  • Expy: Of another Conan character, Natsuki Koshimizu.
  • Fangirl: When she was young she liked to read the "Night Baron" series, so she is fan of Yusaku Kudo.
  • Fedora of Asskicking: Almost always seen wearing a fedora and utilizes her motorcycle to capture criminals. Plus, she's a Jeet Kune Do expert.
  • Foil: To Eisuke Hondou. Both are Mysterious Transfer Students with keen eye for detail and turn out to have some connection to an undercover agent in the Black Organization. Eisuke is clumsy, resembles a woman, and has only met Ran and heard about Shinichi as a teenager; Masumi is more balanced, is often mistaken for a man, and it's heavily implied she met Shinichi and Ran as children.
  • Forgotten First Meeting: It's been heavily alluded to that both Conan/Shinichi and Ran met her before when they were children, with both of them having vague feelings of recollection around her.
  • Green Eyes
  • Hint Dropping: Like many characters in the series, Sera has her secrets. Uniquely however, she seems to be actively trying to drop large hints about what they are so that Conan can figure them out, short of outright telling him.
  • Intergenerational Friendship: Appearance wise, anyway. Unlike most of the other high-schoolers in the series (that aren't known to be privy to Conan secretly being Shinichi), Sera treats Conan like a friend more her own age instead of a child ten years younger. That being said, there are many hints she is aware that Conan isn't the child he looks to be.
    • All but outright confirmed that Sera knows Conan is actually her age. She still has the distinction of very openly treating Conan as an equal in any and all situations without tiptoeing around the issue. This is the friendliness that has had Sonoko teasingly label Sera a Shotacon.
  • Lady Looks Like a Dude: Almost every character who meets her when she's in her casual clothing mistakes her for a boy at first. Her appearance even manages to confuse Kaitou Kid who after mistaking her for a teenage boy, knocked her out and stripped her of her clothes in order to impersonate her and still failed to notice until he was told.
  • Messy Hair: Part of her Bifauxnen appearance.
  • Mugged for Disguise: It happens to her in The Blush Mermaid Heist. She's knocked out and stripped of her clothes by Kaitou Kid, who disguises himself as her and leaves her Bound and Gagged in the men's bathroom. It becomes a crucial plot point to solve the case, as Kaitou Kid mistakenly assumed she was a boy and made several mistakes when impersonating her.
  • Mysterious Transfer Student: From the moment of her introduction, even before she is formally enrolled in Teitan High. Various behaviors and comments made by and about her suggests she's got quite a few plot relevant secrets and connections under her belt.
  • New Transfer Student: The newest student of Teitan High after Eisuke left for America.
  • Nice Girl: Sera has a cheery, sociable, boyish personality and is well liked by her classmates at Teitan High.
  • Nice Hat: Has a number of Fedoras.
  • No Sense of Personal Space: Has shown a tendency to throw chummy hugs around her friends, or excitedly get right up in Conan's face when she's enquiring him about something.
  • Panty Shot: While bringing down someone.
  • Plucky Girl: Masumi is a biker babe bifauxnen who does her best to help her friends and look for her missing older brother.
  • Running Gag: About the above, people being unsure if she's a girl or a boy.
  • Samus Is a Girl: On Ran, Conan and Sonoko, as well as the audience who don't find out concretely that she's female until after the first case she's involved in.
  • Secret Keeper: Is mysteriously hiding an unusually mature-behaving child, whom Sera resembles, in the hotel room where she is living. Said child has specifically asked Sera to keep her presence hidden from others.
  • She's Got Legs: See Panty Shot.
  • Shipper on Deck: She teases Ran about her and Shinichi's relationship, and even calls her Shinichi's girlfriend.
  • Shotacon: Sonoko thinks and makes the teasing suggestion that this is why Sera always seems so interested in Conan.
  • Someone to Remember Him By: Implied. It's mentioned that Shuichi Akai went to America and decided to join FBI after their father's death. Then in Chapter 972, Akai mentioned that their mother, Mary, was still pregnant when Akai left Japan for America. This means Masumi wasn't born yet by the time their father died.
  • Spirited Competitor: In some degree, she seems to like rivalry or contests to see who is the winner.
  • Strong Family Resemblance: As of Chapter 822, she's been revealed to be Shuuichi Akai's younger sister. Lampshaded and foreshadowed by the fact that Conan mentions that she looks like someone he knows when they first met.
  • Tomboy: When she said she was going to dress more girlishly for an Iron Chef-style show's taping she meant she'd be wearing girly panties.
  • Xanatos Speed Chess: Masumi is quite quick-minded, coming up with clever plans and adapting them to sudden changes rapidly.

    Tooru Amuro
Voiced by Toru Furuya (JP)

A Private Detective who first appeared posing as a waiter while helping a client with a case. He currently works at Café Poirot, and has become Kogoro's apprentice.

He is, in fact, Bourbon of the Black Organization, and is shown to be one of the few operatives Vermouth is willing to work with. He is THEN revealed to actually be Rei Furuya, a member of the Japanese secret police having infiltrated the Black Organization.
  • Bishōnen
  • Dark-Skinned Blond
  • Homage: to Amuro. complete with white RX-7 which is Shout-Out to RX-78-2. And with the same seiyuu, to boot. His real name comes from both the character and seiyuu as well.
  • Inter Generational Friendship: He's implied to have had one with none other than Elena "Hell's Angel" Miyano.
  • Sherlock Scan: Here is a perfect example.
  • Shout-Out: His name, Amuro.
  • Master of Disguise: As Scar Akai. Apparently he had some help from Vermouth for that.
  • The Mole: He is Bourbon. And the fake Akai that was around for a while.
  • Mysterious Past: Previously attended the police academy and was a friend of Takagi's deceased superior, Wataru Date. Becomes even more mysterious after one wonders how someone from the police academy became a member of the Black Organization, or if he was already a member of the Organization before applying to the academy.
  • The Reveal: When he announces his Bourbon codename in front of a normally sized Shiho Miyano (Kaito Kid in disguise) during the Mystery Train arc.
    • Much later, it also turns out that he's actually a mole infiltrating the Black Organization. His actual allegiance is that it's not the FBI, which he has some disdain for; he seems to be working for the Japanese Secret Police instead.
  • Reverse Mole: Yet another spy in the Black Organization.
  • Well-Intentioned Extremist: In order to further infiltrate the Organization's inner circle, he planned to run over an elementary school teacher and hand over Shuuichi Akai to them. Akai calls him out on this, reminding him not to forget their true targets.
  • Wham Line: During the Mystery Train arc. "Bourbon... that's my codename!"