TV Special
Description
Inspector Koichi Zenigata is a dedicated officer of the International Criminal Police Organization, more commonly known as Interpol. As a seasoned detective, his life's singular mission is the capture of the master thief Arsène Lupin III, a pursuit that has taken him across the globe. Zenigata is a middle-aged Japanese man of average height, typically seen wearing his signature khaki trench coat over a dark suit, paired with a classic fedora, a uniform that has become instantly recognizable.

His personality is a compelling mix of stark contrasts. He is an incredibly talented and widely respected criminal catcher, capable of taking down entire gangs of lesser criminals with ease and ferreting out security flaws that others miss. However, when it comes to the specific quarry of Lupin, he often appears bumbling and overzealous. His impulsive nature is driven by an old-fashioned, unshakeable sense of justice and honor. He is fiercely resistant to bribery and takes great offense when his integrity is questioned. Outside of his work, Zenigata is messy and unkempt, rarely staying in one place long enough to clean his cluttered hotel rooms or office. In moments of deep frustration or following a professional setback, he is known to go on heavy drinking binges.

Zenigata's core motivation is the arrest of Lupin III, but the relationship is far more complex than a simple hunter-prey dynamic. He has developed a profound, personal obsession with the thief, believing that no one else has the right to capture or kill his quarry; that privilege belongs to him alone. This attachment has evolved into a deep, mutual respect. Lupin famously refers to Zenigata as "Pops," a nickname the inspector never objects to, and on several occasions, they have set aside their rivalry to cooperate against a common, more dangerous enemy. Zenigata is perhaps the only person who can truly understand Lupin's methods and predict his actions. The idea of a world without the chase is empty for Zenigata; when led to believe Lupin has died, he has been known to lose his purpose entirely, once even becoming a Buddhist monk.

In the television special "Alcatraz Connection," Zenigata arrives at a floating casino ship owned by the Mafia, tipped off that Lupin plans to rob it. His intervention helps thwart the immediate theft, though Lupin successfully makes off with crucial computer data about a sunken treasure ship. For this operation, Zenigata is partnered with a San Francisco inspector named Terry Crown. A significant aspect of his role in the story revolves around this partnership, as Crown is secretly the leader of a mysterious organization known as the Secret Seven, which operates from a hidden base beneath Alcatraz Island. The special shows Zenigata's more sentimental side, a notable moment occurring when he visits Lupin in a prison cell. Upon hearing Lupin state that Zenigata is the only person who truly makes him give his best effort, the inspector is moved to tears. This scene reinforces the deep, almost existential bond between the two rivals. After Lupin inevitably escapes, Zenigata is again left to resume his eternal pursuit, his determination undimmed.

While the events of "Alcatraz Connection" do not mark a permanent change for the character, they reinforce his key traits. He remains the determined, justice-driven detective whose personal connection to the case and the criminal he hunts runs deeper than professional duty. His development across the franchise is steady; his skill in capturing Lupin grows, and his traps become more inventive, even if the thief always finds a way to slip through his fingers.

Zenigata is far from a typical police officer. His signature weapon is a pair of handcuffs tied to a long rope, which he can throw with incredible, almost superhuman accuracy to snare fugitives from a distance. He is also highly proficient in hand-to-hand combat and judo, able to easily defeat multiple armed opponents without breaking his stride. His driving obsession grants him seemingly superhuman endurance; he has flatlined and been revived by the mere mention of Lupin's name and has shrugged off the effects of a tranquilizer strong enough to knock out an elephant for half an hour, recovering in just thirty seconds. He is also a skilled inventor of gadgets, creating unique restraints like the "Zenigetcha" thumbcuffs and tracking devices like the "Lupin Catcher". Whether riding a motorcycle or flying a plane, Zenigata’s physical and mental abilities are formidable, making him one of the few individuals in the world considered a genuine threat to the genius of Lupin III.