Heiji Hattori

Heiji Hattori (Harley Hartwell in the english translation) is another high school detective, sometimes called the 'Great Detective of the West', just as Shinichi Kudo is sometimes called the 'Great Detective of the East'. He first appeared in File 92 of the manga. He has the unusual trait of darker-than-normal skin, inherited from his grandfather, and he comes from Osaka. His father is Haizo Hattori, police detective. He is very similar to Shinichi in many ways. He has a childhood friend, named Kazuha Toyama, and has begun to have romantic feelings for her, which she reciprocates, though she doesn't know he does. He seems to be heavily in denial, and doesn't realize how much he cares for her. He was the first person to discover Shinichi's identity as Conan completely on his own. Since then, he's become Shinichi's best friend, besides Ran. He and Conan/Shinichi often work together.

His name comes from fictional police detective Zenigata Heiji and the samuri/ninja Hattori Hanzou.