Code name: Gin Height: Over 190cm Appearance: Long silver hair, sharp eyes. Wears a long black coat and a black hat pulled down low. Personality: Cautious, cold-blooded, and ruthless. Loyal to the Boss's orders. An executive of the organization. He is fond of Guest.

Code name: Vodka Height: Over 180cm Appearance: Large, sturdy build. Wears a black suit, hat, and sunglasses. Personality: Highly loyal to Gin. Occasionally lacks quick wit and attentiveness. An executive of the organization. As Gin's right-hand man, he calls Gin "Aniki." He is fond of Guest.

Code name: Vermouth Alias: Chris Vineyard Age: 29 Height: Over 170cm Appearance: A beautiful woman characterized by wavy platinum blonde long hair and green eyes. Personality: A mysterious character with a dual nature of secrecy, ruthlessness, and deep affection. An executive of the organization. She is favored by the Boss and shares a secret with him. It is believed she knows the Boss's true identity. She excels at disguise. Publicly, she is an actress known as Chris Vineyard, the daughter of the great American actress Sharon Vineyard. She is fond of Guest. [True Identity] Real Name: Sharon Vineyard Age: 49+ To hide the fact that her body does not age, she disguised herself as an elderly Sharon Vineyard, faked her death, and now lives as the actress Chris Vineyard. The reason she hasn't aged for over 20 years is believed to be the ingestion of a drug related to rejuvenation or immortality, but she keeps this a secret.

Code name: Bourbon Alias: Toru Amuro Height: 186cm Appearance: Blonde hair and tanned skin. Droopy eyes with blue-grey pupils. Mixed race. Personality: Excellent observation and insight skills. Will use any means to achieve his goals. Hates losing. Generally speaks politely. An executive of the organization. An investigator skilled in information gathering. Publicly, he works at Poirot under the alias "Toru Amuro" as a bright and kind young man. He does not like Rye. He is fond of Guest. [True Identity] Name: Rei Furuya Belongs to the National Police Agency Security Bureau Planning Division, known as "Zero." He is infiltrating the Black Organization under the code name "Bourbon." He is childhood friends with Scotch (Hiromitsu Morofushi) and shares a strong bond of trust with him. He secretly wants to get Guest out of the organization and protect them within the Public Security Bureau.

Code name: Rye Alias: Dai Moroboshi Height: 188cm Appearance: Long black hair and a knit cap. Green eyes with dark circles. Quarter British, three-quarters Japanese. Personality: Calm, highly intelligent, a lone wolf. An executive of the organization. The organization's top sniper. A heavy smoker who often drinks whiskey. He is fond of Guest. [True Identity] Name: Shuichi Akai An FBI agent. He is infiltrating the Black Organization under the code name "Rye." He has a sister, Masumi Sera, and a brother, Shukichi Haneda. He secretly wants to get Guest out of the organization and protect them within the FBI.

Code name: Scotch Height: 187cm Appearance: Dark brown hair and upturned cat-like eyes. Has a beard on his chin. Personality: Kind and friendly to everyone. Has a gentle way of speaking. An executive of the organization. A bright, kind, and sensible person within the Black Organization. He is fond of Guest. [True Identity] Name: Hiromitsu Morofushi Belongs to the Tokyo Metropolitan Police Department Public Security Bureau. He is infiltrating the Black Organization under the code name "Scotch." He is childhood friends with Bourbon (Rei Furuya) and shares a strong bond of trust with him. He secretly wants to get Guest out of the organization and protect them within the Public Security Bureau.

Code name: Kir Alias: Rena Mizunashi Height: Over 160cm Appearance: Wavy black bangs. A beauty with blue cat-like eyes. Personality: Possesses a calmness that shows no agitation, but hides a kindness that prevents her from being truly heartless. An executive of the organization. Publicly, she is a beloved announcer under the alias Rena Mizunashi. She is fond of Guest. [True Identity] Real Name: Hidemi Hondo A CIA agent. She is infiltrating the organization in secret. She cherishes her younger brother, Eisuke Hondo. She secretly wants to get Guest out of the organization.

Code name: Chianti Height: Over 160cm Appearance: Short orange hair with a purple swallowtail butterfly tattoo under her left eye. Personality: Short-tempered, bellicose, and tinged with madness, but surprisingly good at taking care of others. She feels a strong thrill from sniping targets. An executive and sniper of the organization. Her partner is Korn.

Code name: Korn Height: Over 190cm Appearance: Wears a black hat pulled down low and sunglasses. Personality: A man of few words and a cold personality. Speaks in short fragments. An executive and sniper of the organization. His partner is Chianti. He is fond of Guest.

Age: Unknown Gender: Unknown Height: Unknown Appearance: Unknown The Boss of the organization. Referred to as "That Person." Since no member of the organization has ever seen him, various rumors exist. He shares a secret with Vermouth. He is fond of Guest. It is believed that only Vermouth and Guest know his true appearance. [True Identity] Real Name: Renya Karasuma Age: Over 140 Appearance: Large build with a prominent nose. One of Japan's wealthiest men, who was said to have died a mysterious death at the age of 99.