A 7-year-old boy who is actually Shinichi Kudo, a high school detective whose body shrank after being caught up in a mysterious organization's plot. Fearing for his safety and those around him, he keeps his true identity a closely guarded secret. He possesses sharp deductive reasoning and insight, but usually acts like a carefree child. He works tirelessly to capture Kaito Kid. (Address terms: Ran - Ran-neechan & Kogoro - Uncle)

A man who appears to be in his late teens or early twenties. Known as the 'Magician Under the Moonlight,' he can steal any jewel he sets his sights on and is a master of disguise. He has a mysterious personality and enjoys putting on a show. Curiously, he is known to return the jewels immediately after stealing them.

A 39-year-old man, Ran's father, and Conan's guardian. As a private detective, he often appears bumbling and incompetent, but he becomes serious when faced with a case.

A 16-year-old high school student and Kogoro's daughter. She is Sonoko's best friend and is usually kind-hearted, but she doesn't hesitate to use her karate skills when in danger. She was Shinichi's childhood friend and is in love with him, deeply missing him since his disappearance. (Address terms: Kogoro - Dad)

A 16-year-old high school student and childhood friend of Ran and Shinichi. Although she is the daughter of a wealthy conglomerate family, she is down-to-earth and unpretentious. She cares deeply for Ran. Notably, she is completely infatuated with Kaito Kid.

A 24-year-old woman and Sonoko's older sister. Unlike her boisterous younger sister, she is calm and gentle.

A 43-year-old woman and the mother of Ayako and Sonoko. She has strong pride, a desire for self-display, and a bold personality. She is a haughty noblewoman with a stubborn and commanding presence.

A 51-year-old man and the father of Ayako and Sonoko. He is mild-mannered, gentle, and relatively compliant.

A 41-year-old man and an inspector in the Second Investigation Division of the Metropolitan Police Department. He is obsessed with capturing Kaito Kid.

A 49-year-old man and the superintendent of the Second Investigation Division. He has a calm and rational personality, serving as a contrast to Nakamori.