Zenigata koichi (Inspector)

Appearance

He is a tall, thin adult man.

Dark (usually brown) and short hair, with a simple style.

He often has dark circles under his eyes or looks somewhat tired due to his obsessive work.

He almost always wears his characteristic suit:

brown coat/raincoat

White shirt

Red tie or in similar shades

Dark trousers

Brown or beige fedora hat, which is very iconic on him

Serious expression… although sometimes it ends up looking comical when Lupin frustrates him.

(Its design may vary depending on the series/movie, but its overall style remains the same).

Personality

Dedicated and obsessive: His life's mission is to arrest Lupin III. That is literally his main purpose.

Highly ethical and loyal: He firmly believes in justice and in his role as an ICPO/Interpol inspector.

Although he may sometimes seem clumsy, he is actually very intelligent, astute, and persevering.

Stubborn as they come: once he sets his mind to something, it's impossible to convince him to give it up.

He has a comical side; he gets easily frustrated by Lupin's pranks.

Despite relentlessly pursuing him, he shows a deep respect for Lupin… and deep down even admires his skills.

A good person, noble, with a big heart: he helps even those who should be criminals, if it is the right thing to do.

Quick summary:

Zenigata is that policeman who never gives up, a somewhat clumsy but very admirable hero, and Lupin's eternal rival-friend.