TV-Series
Description
Grevil de Blois is a character from the early twentieth-century setting of the story. He is a tall, handsome young man of aristocratic birth, being the eldest son and heir of the influential Marquis de Blois. By profession, he serves as an inspector in the police department of the fictional European country of Sauville. His appearance is notable and distinctive, most famously for his unusual hairstyle, which is shaped into a long, rigid drill that protrudes from his forehead. This style is later described as having been updated to a two-drill configuration. In the past, and on rare occasions, he is seen with his natural shoulder-length blond hair left down, a look other characters describe as surprisingly normal and pleasant. He typically dresses in a white coat and slacks, often paired with a pink ascot, and maintains an otherwise elegant manner. He is also known to have a fondness for collecting bisque dolls, which he keeps in his office at the police headquarters.

In terms of personality, Grevil often presents himself with an exaggerated, eccentric, and somewhat comical flair, sometimes overacting or speaking in an affected manner, especially around people he knows. However, this behavior contrasts with his past self, who was mild-mannered, soft-spoken, and calm. Despite his eccentricities, he can display a serious side, particularly when obeying his powerful father, to whom he feels a deep sense of obligation as the heir to the family name. While the public may view him as a competent detective who solves mysterious cases, the truth is that he is actually quite terrible at his job. His position as a detective is essentially an aristocrat's hobby, having forced the local police to appoint him out of his own interest in crime. He has made significant errors, such as nearly accusing a foreign student of murder, an act that could have had serious diplomatic consequences. Consequently, he relies almost entirely on the intellect of his younger half-sister to solve cases for him.

A primary motivation and a defining aspect of his character is his unrequited love for his childhood best friend, Jacqueline. He holds her opinion in the highest regard, and many of his most significant actions are driven by his devotion to her. It was his desperate plea to his half-sister to save Jacqueline from a false murder accusation that resulted in his signature drill hairstyle, which was the "payment" demanded for using her deductive abilities. His career as a detective, chosen partly as a reaction to Jacqueline's marriage to a high-ranking police official, is also tied to his feelings for her.

Grevil's central role in the narrative is as the troubled and often bumbling police inspector who arrives at crime scenes, but his character is defined by his complex relationship with his half-sister, Victorique. He is a frequent visitor to the library where she is kept, but he is extremely reluctant to interact with her directly, calling her conditions "demands of the devil." He fears her ability to extract steep, often humiliating, prices for her help. Instead, he communicates through a foreign student, using the student as an intermediary to receive Victorique's deductions without having to pay the high price he would incur by asking her directly. This arrangement allows him to solve the cases he is assigned and claim the credit.

His relationships are deeply conflicted, particularly with his father, Marquis de Blois. As the eldest son, he obeys his father's commands, even when they involve the occult division of the government, a role he is forced to take on as war approaches. His relationship with Victorique is a core part of his development. On the surface, he is often cruel to her, calling her heartless and accusing her of not knowing how to love. He avoids her, and his behavior can seem harsh and dismissive. However, beneath this exterior, he harbors genuine feelings of sympathy, pity, and a complex form of affection for her. He internally protests against his father's cruel treatment of her and secretly worries about her well-being. This hidden concern culminates in a key moment of development: after their father's death, he actively helps Victorique escape to Japan, defying his family's legacy. In a significant emotional moment, he confronts Victorique about his sacrifices for Jacqueline, and later, she grants him permission to abandon the drill hairstyle, returning to his natural look.

His abilities as a detective are notably lacking, as he has no formal police training. His only real talent is his persistence and his access to Victorique's genius, which he uses to mask his own incompetence. Following the main events of the war, he is disowned for helping his sister escape. He later serves in the military and is injured in a car accident while trying to rescue Jacqueline. After the war, with help from another character, he returns to his old position as a police officer and changes his hairstyle. In a later story set after the original series, Grevil has undergone a significant development, leaving his police career behind to become a new actor in the United States, corresponding with his sister from there.
Cast