Characters

A surgeon and mentor figure who saved Black Jack from a near-fatal injury during his childhood. He appears mainly in flashback scenes in major episodes, and his treatment served as the trigger for Black Jack to embark on the path of becoming a doctor.

A student with an androgynous appearance who was saved by surgery from Father Zipper in childhood.

A female doctor running a clinic on a small island in the Seto Inland Sea. Her brother Ikuo was a doctor who saved BJ from a crisis but died in a landslide. Possesses calm judgment and surgical expertise.

Black Jack's half-sister and a tragic figure who shielded her brother BJ from retaliatory gangsters, losing her life. Amid the conflicts between her biological mother and father, and the family's complicated circumstances, she harbored complex feelings toward her brother, but ultimately sacrificed herself out of strong affection for him.

Known as the Vampire Doctor, an internist who mercilessly collects treatment fees. His medical skills are top-notch, treating patients with full effort, but he shows no regard even for the family's hardship when it comes to fees. He is the one who made Black Jack say 'My Shadow Sorcerer.'

Bears the moniker Vampire Doctor, devotes full effort to treating patients under his care but strictly collects fees without regard for family circumstances—an internist. Referred to as 'my shadow sorcerer' by Black Jack.

Shady assistant professor under Yamadano, who plots conspiracies aiming for the professor's position.

A doctor who practices medicine without a license in a remote village and is deeply respected by his patients. One of the few doctors praised as admirable by BJ.

An excellent female surgeon who performs impeccably precise surgeries, holding the epithet Black Queen as the female version of Black Jack.

Protagonist BJ's childhood friend from elementary school in 'Black Jack'. Bound by a friendship without lies, but after growing up, he commits numerous crimes and becomes a major figure in the underworld.

Black Jack's university underclassman and medical office member. Loved BJ mutually, received uterine cancer treatment but lost female functions, and decided to live as a man.

A girl suffering from terminal cancer who dreams of having a wedding. A character appearing in 'Black Jack'.

BJ's mother, who suffered severe injuries in an unexploded ordnance accident and passed away. She was a kind mother who continued to communicate her thoughts to her young son BJ through lip movements.

Always stays by Black Jack's side as his assistant, supporting the medical scene despite having a child's body. Characterized by unique toddler-like speech.

A figure who strongly pressures Black Jack (BJ) to obtain a medical license, even having the unlicensed BJ arrested by the police, in order to protect the medical licensing system.

A character from Black Jack. She is BJ's father's mistress and Koran's biological mother. In the past, her face disfigured by Hansen's disease was reconstructed through plastic surgery. Deep down, she views BJ as an obstacle and plotted schemes to ensure only her daughter inherits her husband's legacy.

A young girl suffering from pollution disease who became the model for Pinoko's face.

He was a renowned doctor at a large hospital but became mentally ill and unable to perform surgery.

A veteran doctor who has worked at Manaka Hospital for over 20 years. Due to his humble nature and lack of ambition for promotion or power, he was treated as window tribe within the hospital, but his medical skills are exceptional.

Inferior in achievement compared to his brothers, has a past of delinquency. Reformed and became a doctor after being disowned by his late father.

The unlicensed genius surgeon Black Jack's best friend. Provided the left half of his facial skin, then devoted himself to nature conservation activities, and was assassinated in Algeria.

Black Jack's friend from medical school days and a doctor. Worked at Neutral Hospital but was fired after rebelling against the dictatorial hospital director and requesting surgery from BJ. Also appears in anime and OVA.

A pickpocket on the Yamanote Line whose thumbs and index fingers on both hands were cut off by a gang, but was saved by BJ and reformed. Formerly a magician who applied his sleight-of-hand skills to pickpocketing.

A friend from the med school days in 'Black Jack' and a surgeon working at Kaisei Hospital. He is BJ's confidant, and he himself often collaborates with BJ on surgeries and treatments.