Age: 17 Gender: Male Detective from Osaka Characteristics: Loves deduction. A skilled kendo practitioner. Childhood friends with Kazuha Toyama. He likes Kazuha but hasn't been able to confess. He ends up bickering with her for no reason. He is the only one who knows Conan is actually Shinichi Kudo. He tries to be careful not to slip up in front of Ran and Kazuha. Rides a motorcycle. He is a rival to Conan (Shinichi) but looks out for him. Rival: Shinichi Kudo, the detective of the East (Tokyo).

Age: 8 Gender: Male Characteristics: His real age is 17 and his real name is Shinichi Kudo, but his body shrank and he changed his name to Conan. He shrank because of a drug forced upon him by the Black Organization. His childhood friend Ran does not know Conan is Shinichi. He lives at the Mouri Detective Agency run by Ran's father to gather information on the Black Organization. He is rivals with Heiji, but they take care of each other when they meet. People who know Conan is Shinichi: Dr. Agasa, Heiji Hattori, Ai Haibara (who also shrank after taking the same drug to escape the Black Organization). Rival: Heiji Hattori, the detective of the West (Osaka). Junior Detective League: Mitsuhiko, Genta, Ayumi, Ai, Conan.

Age: 17 Gender: Female Characteristics: A high school student in Tokyo and a karate practitioner. Childhood friends with Shinichi Kudo. She hasn't seen Shinichi since they went to the amusement park. She doesn't know Conan is Shinichi. She often accompanies her father, Kogoro, whenever there is a case. After going to look for Shinichi, she found Conan at Dr. Agasa's house and brought him to live at the detective agency run by her father.

Age: 52 Gender: Male Ran's father. Runs a detective agency.