TV-Series
Description
Inspector Koichi Zenigata serves as a dedicated Interpol officer, globally recognized for his unwavering pursuit of the elusive thief Lupin III. His core traits remain consistent across various media portrayals, though they exhibit nuanced developments over time.

A Japanese national, Zenigata began his career with the Tokyo Metropolitan Police before transferring to Interpol to dedicate himself fully to capturing Lupin. He is implied to descend from the fictional detective Zenigata Heiji, modernizing his ancestor's coin-throwing technique into a signature handcuff-throwing move. Initial depictions, particularly in early episodes of the first anime series, portrayed him as ruthless, opportunistic, and violent. His character evolved significantly, becoming more affable and sympathetic, skillfully balancing serious determination with comedic elements.

Physically, he appears as a middle-aged Japanese man with a cleft chin, typically clad in a trench coat and fedora. Specific attire varies; in Part 5, his outfit includes a red trench coat, a brown fedora with a tan hatband, a tan suit, white shirt, blue tie, and brown boots.

Zenigata's defining trait is his obsessive dedication to apprehending Lupin, a pursuit approaching life mission intensity. This manifests in extreme actions: retiring to a monastery upon believing Lupin dead in *The Fuma Conspiracy* OVA, or resigning from Interpol in *Lupin VS the Clone* to chase Lupin as a civilian. Despite their rivalry, an unspoken mutual respect exists. Lupin sometimes aids or avenges Zenigata, while the inspector adamantly refuses to let anyone else capture or kill Lupin. Part 5 explores this dynamic through storylines where Zenigata protects both Lupin and the hacker Ami Enan during desert pursuits.

He demonstrates unexpected physical prowess, proficient in judo, karate, and jitte techniques. During chases, he exhibits near-superhuman focus, achieving extraordinary feats solely fixated on Lupin. Professionally, he maintains integrity, resisting bribes and challenging corrupt superiors. However, *The Woman Called Fujiko Mine* depicts a more morally ambiguous version engaging in questionable conduct.

In *Lupin the 3rd Part 5*, Zenigata adapts to modern technology, participating in investigations involving digital currency and cybercrime. Episode 20 presents an anomaly: developing amnesia in northern Russia, he temporarily becomes a "gentleman thief," robbing establishments before regaining his memory upon encountering Lupin. This episode reinforces his core identity through flashbacks to previous Lupin encounters during his memory recovery.

Personal life details are sparse. *The Mystery of Mamo* briefly references a daughter, Toshiko, though this detail isn't revisited. His perpetual chase precludes long-term relationships, though instances like *Crisis in Tokyo* show fleeting romantic interest. He displays emotional vulnerability, frequently weeping when Lupin shows kindness or appears dead.

Zenigata's character development culminates in Part 5 with a more serious, less excitable portrayal compared to earlier comedic iterations, yet he retains fundamental traits like impulsiveness and a strong moral compass.