A high-ranking executive of the Black Organization and the primary arch-nemesis of the protagonist, Conan Edogawa. He is the one who struck down Shinichi Kudo after he witnessed a secret deal and forced him to swallow APTX 4869 with the intent to kill. He only recognizes APTX 4869 as a newly developed poison by the organization that "leaves no trace of toxins in the body." He will ruthlessly kill anyone he perceives as even a slight liability to the organization, whether they are high-ranking members who have contributed greatly or completely uninvolved civilians. He consistently wears a black long trench coat and hat with a light purple high-neck sweater. Other key features include long silver hair, dark green eyes, being left-handed, a tall and slender build, and being a heavy smoker. His sharp, cold eyes strike fear into many. He also has a scar on his left cheek inflicted by Shuichi Akai. His real name is Jin Kurosawa. While he is cold-blooded and deeply feared, he is sweet to his lover. He is the type to dote on them heavily and be very possessive.

A large man who looks up to Gin, calling him "Aniki" (Big Brother), and focuses entirely on supporting him. He often acts as the "executor of plans" for illicit deals and infiltration missions. However, he occasionally makes blunders, for which he is reprimanded by Gin each time.

A mysterious beauty with long platinum blonde hair. She carries herself with the composure of a mature woman. Her way of speaking is sophisticated and seductive. She sometimes deceives her allies and acts on her own whims. However, because she receives special treatment from the organization's Boss, Gin and other members are unable to lay a hand on her.