Jimmy Kudo known as Shinichi Kudo (工藤 新一, Kudo Shin'ichi?) in Japan, is the protagonist of the series. Shinichi is a brilliant high school detective who often solves difficult cases for the police. After getting in over his head with a certain case, he is attacked and forced to take an experimental poison by a member of a mysterious secret crime organization that he was investigating. The drug was supposed to kill him, but due to a rare side-effect, he was inadvertently shrunk back to his childhood body. In order to keep his true identity a secret, he now goes under the alias Conan Edogawa (江戸川 コナン, Edogawa Konan?) and pretends to be a real child to throw off suspicion while he secretly solves many cases and looks for clues about the organization. He fears the organization will come back and kill him and everyone he knows if it is discovered that he isn't really dead. He also has always had a crush on his childhood friend, Rachel Moore who he is openly in love with but cannot reveal his feelings to in his current condition. Before he was shrunk, Shinichi was a popular detective, a great soccer player, and was sometimes a bit full of himself before he became "Conan". His two seiyū are Kappei Yamaguchi for Shinichi and Minami Takayama for Conan. He is voiced by Jerry Jewell for Jimmy and Alison Viktorin for Conan. In the TV Drama he was portrayed by Shun Oguri in teenage form and Nao Fujisaki in child form.
Rachel Moore known as Ran Mouri (毛利 蘭, Mōri Ran?) in Japan, is Jimmy's best friend since elementary school. Both are in love with one another but neither have the courage to admit their feelings. She is skilled in martial arts and is the captain of her karate team, though her resolve can be easily broken if she has to face anything related with the horror genre. She spends most of her home life looking after Conan and her irresponsible father. Her seiyū is Wakana Yamazaki and her English voice actress is Colleen Clinkenbeard. In the live drama, she was portrayed by Tomoka Kurokawa.
Richard Moore known as Kogoro Mouri (毛利 小五郎, Mōri Kogorō?) in Japan is Rachel's father, a former police officer turned incompetent private detective. He was married to Eva Kadan, a successful lawyer and childhood friend, but now they are living separately. Despite his irresponsible ways, he appears to care deeply for his daughter, and at times shows some flashes of honor and strict ethics. His seiyū is Akira Kamiya and his English voice actor is R. Bruce Elliot. He was portrayed by Takanori Jinnai in the live drama.
black organation
Gin (ジン, Gin?) is one of the top-ranked members in the BO, as well as the person who gave the APTX 4869 poison to Shinichi. He is extremely cold-blooded and one of the most menacingly-drawn villains. It should be noted that he is also extremely perceptive, and as such it would be extremely difficult to catch him. His name is changed to Melkior in the Manga. His seiyū is Yukitoshi Hori and his English voice actor is Troy Baker. He was portrayed by Sasaki Kuranosuke in the live drama.
Vodka (ウォッカ, Vodka?) is a member of the BO, who is usually seen alongside Gin, whom he refers to as aniki ("older brother"). Unlike Gin, Vodka is very slow and easy to trick and, as such, would have been caught many times if he didn't stay with Gin so often. His name is Kasper in the manga. His seiyū is Fumihiko Tachiki and his English voice actor is Kyle Herbert. He was portrayed by Taro Okada in the live drama.
Vermouth is an important member of the Black Organization. Her true identity is Sharon Vineyard, a famous American actress who mastered the skill of disguise alongside her friend Yukiko (Vivian) Kudo, Jimmy's mother. They were both tutored through an acting class by the world famous magician, Toichi Kuroba, (who was secretly the original Kaitou Kid and who was later killed by an underground organization, though it has not been confirmed in the series to have been the B.O.).
Vermouth is the Boss's favorite member of the organization, and she is shrouded with mystery. The cold-blooded part of her personality doesn't hesitate to carry out the B.O.'s top orders in the forms of murders and so forth, without the slightest bit of remorse. However, she shows affection for both Shinichi (Jimmy) and Ran (Rachel) after they unknowingly save her life as she is disguised as a male serial killer in New York. She eventually realizes who Conan must really be later in the series, and supports him in a way, by protecting him and keeping his true identity hidden from the other B.O. members. She believes that if anyone is capable of bringing down the Black Organization, Conan/Jimmy is that "silver bullet". She also does not seem to ever age, or ages extremely slowly. It is still a mystery as to why this is. She even goes to such lengths as to say she has a "daughter" named Chris Vineyard and she disguises herself as both "Sharon" and "Chris." She is questioned about her agelessness by Jodie Starling, who has a personal vendetta against her. Jodie remembered that Vermouth killed her father, who was also an FBI agent, when she was just a little girl. Vermouth never gives her a straight answer. "Sharon" later supposedly dies, while "Chris" looks on at the funeral. Vermouth's famous line is "A secret makes a woman, a woman." Her seiyū is Mami Koyama.
chianti
A member of the Black Organization who serves as an assassin/sniper and replaces Calvados. [1]. She appears in volume 48-49 of the manga and episode 425 alongside her partner, Korn. Chianti is first introduced to the Case Closed series in episode 425 as an experienced assassin. [1]. In the anime, her sniping range limit is revealed to be 600 yards, making her a less experienced sniper than her partner Korn, as well as her FBI rival, Shuichi Akai.[1] Chianti hints that she had some kind of connection to Calvados before he killed himself, though it is unclear just what that may be. Along with Korn, Chianti does not appear to like Vermouth. As far as appearance goes, Chianti takes on a goth-like style. [1] She wears a jumpsuit and dark lipstick, and has a dark tattoo resembling a butterfly's wing on her left eye.[1] In the anime, she speaks with a distinct accent, and unlike the other members (aside from her partner), she rarely smiles. However, she appears to have some sense of ironic humor, as proven in the beginning of episode 425 when she and Korn are practicing sniping and he misses.[1] Her weapon of choice is a Heckler & Koch PSG1 sniper rifle,and she drives a blue and white Viper.[1] Recently, she participated in a mission in bringing back Kir, which succeeded thanks to Gin. She was about to kill the FBI agent Andre Camel, but an explosion interfered. She is forced to flee with the other BO members when onlookers appeared and called the police. Her seiyū is Kikuko Inoue
korn
Chianti's partner, and fellow assassin/sniper. He appears in episode 425 and volume 48-49 of the manga. He is much older than his comrades, always wears a dark hat and sunglasses, and always has a cold emotionless expression on his face. Unlike the other members of the Black Organization, he never smiles. He and Chianti both resent Vermouth because of Calvados's death. His face is designed in a way that makes him look as if he is perpetually frowning, and he has gray hair and wrinkles. His seiyū is Hiroyuki Kinoshita.
Bourbon
The newest member of the Black Organization, first mentioned in File 622 as having incredible investigative skills

Akemi Miyano (宮野明美, Miyano Akemi?) was a member of the Black Organization under the alias Masami Hirota and Shiho Miyano's older sister. She was also Shuichi Akai's girlfriend which was the main reason she tried to escape from Black organization. She stole one billion yen to escape from the black organization but was killed by Gin. She's also the one who knows Conan's identity because Conan told her before she died.Her seiyū was Sakiko Tamagawa
Tequila is a tall intimidating member of the Black Organization that is used to muscle people into making deals with his syndicate.[2] He apparently comes from Osaka since he is heard to speak with a Kansai accent.[3] He first appears in Volume 12 of the manga where Conan literally bumps into him at a video game convention in a hotel.[4] At first, Conan only dismisses him as being a game company employee when he sees him pick up a suitcase with a game company's logo on it. He is a giant BO henchman towering above 6'5" (195.6 cm). He is accidentally killed by a briefcase bomb. His seiyū was Kōsei Hirota and his English voice actor was Andrew Chandler.