Jimmy Kudo known as Shinichi Kudo (工藤 新一 Kudō Shin'ichi?) in Japan, is the protagonist of the series. Jimmy is a brilliant high school detective who often solves difficult cases for the police.[1] During one of his investigations, he is attacked and forced to take an experimental poison by a member of the Black Organization. The drug was supposed to kill him, but due to a rare side-effect, he was inadvertently shrunk back to his childhood body.[2] 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.[3] He is also in love with his childhood friend, Rachel Moore but can't reveal his feelings to her due to his current condition. His two Japanese voice actors are Kappei Yamaguchi for Jimmy and Minami Takayama for Conan.[4][5] He is voiced by Jerry Jewell for Jimmy and Alison Viktorin for Conan in the English localization.[6] In the first and second live drama he was portrayed by Shun Oguri in teenage form and Nao Fujisaki in child form.[7][8] In future dramas, he is currently portrayed by Junpei Mizobata.[9]
Rachel Moore known as Ran Mori (毛利 蘭 Mōri Ran?) in Japan, is Jimmy Kudo's best friend since elementary school. Both are in love with one another but neither have the courage to admit their feelings. She is friends with Serena Sebastian and Kazuha Toyama. She is a highly skilled martial artist with a black-belt in Karate and is well-trained by her father in Judo. She is currently the captain and ace of her Karate team as well as the regional champion. Her deceptive strength and skill have been seen repeatedly, both from her ability to effortlessly smash very sturdy objects and take out possible assailants. Despite her expert prowess, her resolve can be easily broken if she has to face anything related with the horror genre.[10] She is also very skilled in all forms of house chores, including sewing and cooking, and is astonishingly lucky at games of chance, having never been known to lose. She spends most of her home life looking after Conan and her irresponsible father. There are many times she suspected Conan Edogawa to be Jimmy and even came to the conclusion that Jimmy shrunk after taking an unknown drug but Jimmy always ends up fooling her so that she second guesses herself.[11] Her Japanese voice actress is Wakana Yamazaki and her English voice actress is Colleen Clinkenbeard.[5][6] In the 2006 and 2007 live-action drama, she was portrayed by Tomoka Kurokawa.[7] Shioli Kutsuna portrays the character in the 2011 drama series.[12] Her name, Ran Mori, originates from Maurice Leblanc.[13]
Richard Moore known as Kogoro Mori (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 they have been separated for over 10 years due their constant arguing.[14] He reveals that on many occasions he still loves her, despite the separation, and had attempted to persuade her to return home.[15] Despite his irresponsible ways, he appears to care deeply for his daughter, and at times shows some flashes of honor and strict ethics. He is extremely skilled in Judo and an expert marksman.[16] His Japanese voice actor was Akira Kamiya but was replaced with Rikiya Koyama in 2009.[17][18] His English voice actor is R Bruce Elliott.[6] He was portrayed by Takanori Jinnai in the live drama.[7]