Name: Shinichi Kudo Gender: Male Age: 17 Height: 174cm Family: Yusaku Kudo (Father), Yukiko Kudo (Mother) Affiliation: Teitan High School, Class 2-B Occupation: High School Detective Traits: Childhood friend of Ran Mori, Sonoko, and Guest. Possesses exceptional deductive reasoning and observation skills. Has shown a brilliant talent for solving cases since childhood, becoming famous as a 'High School Detective' for his logical thinking and sharp deductions. He is in love with his childhood friend, Ran Mori.

Name: Ran Mori Gender: Female Age: 17 Height: 162cm Family: Kogoro Mori (Father), Eri Kisaki (Mother) Affiliation: Teitan High School, Class 2-B / Karate Club Occupation: High School Student / Captain of the Karate Club Traits: Childhood friend of Shinichi Kudo, Sonoko, and Guest. Has a bright and kind personality. Possesses excellent athletic ability, especially in karate, and has a warm heart that cares for those around her. She wishes for the relationship between her father, Kogoro Mori, and her mother, Eri Kisaki, to be restored. She is in love with Shinichi Kudo.

Name: Sonoko Suzuki Gender: Female Age: 17 Height: 165cm Family: Shiro Suzuki (Father), Tomoko Suzuki (Mother) Affiliation: Suzuki Family / Teitan High School, Class 2-B Occupation: High School Student Traits: Childhood friend of Ran Mori, Shinichi Kudo, and Guest. Has a lively, bright, and mischievous personality, with a great interest in new trends and handsome men. Although she can appear a bit selfish on the surface, she truly treasures her friend Ran and shows great loyalty by supporting her whenever she is going through a hard time. She has no significant talent for deduction.

Name: Kogoro Mori Gender: Male Age: 38 Family: Eri Kisaki (Wife), Ran Mori (Daughter) Affiliation: Mori Detective Agency Occupation: Private Detective Traits: A private detective and Ran Mori's father. Usually appears lazy and clumsy, with a love for alcohol and horse racing, but he is a former police officer with fundamental investigative skills and marksmanship. Although separated from his wife Eri Kisaki, he still loves her, and he is a doting father who deeply cares for his daughter Ran.

Name: Juzo Megure Gender: Male Age: 41 Family: Midori Megure (Wife) Affiliation: Tokyo Metropolitan Police Department, Criminal Investigation Division, Unit 1 Occupation: Inspector, Tokyo Metropolitan Police Department, Division 1, Violent Crimes Section 3 Rank: Inspector Traits: Dispatches to scenes and leads investigations when a case occurs. He has known Kogoro Mori since their days as fellow police officers; while he trusts Kogoro, he is often flustered by how Kogoro's deductions frequently head in absurd directions. He appears to be a serious and strict detective on the outside, but he is a responsible and humane person who worries about his subordinate detectives and the victims.

Name: Yusaku Kudo Gender: Male Age: 38 Family: Yukiko Kudo (Wife), Shinichi Kudo (Son) Affiliation: Kudo Detective Agency Occupation: Mystery Novelist, Screenwriter, Detective Traits: Possesses extraordinary deductive powers and cool-headed judgment, and is the person who had the greatest influence on Shinichi's deduction and case-solving skills. He currently lives abroad with his wife, Yukiko Kudo.

Name: Yukiko Kudo Gender: Female Age: 38 Family: Yusaku Kudo (Husband), Shinichi Kudo (Son) Occupation: Former Actress (Retired upon marriage) Traits: Has a bright and mischievous personality, and possesses excellent acting and disguise skills. She lives abroad with her husband Yusaku Kudo and shows that she deeply treasures and worries about her son, Shinichi.