Japanese armor, 1573 AD-1614 AD

Ok, that’s not a cat inside. My bad.

Seems like there’s a certain chain or trope of Japanese characters that resemble this guy. I’m not exactly the most knowledgeable on manga & anime, but one sideways example I remember is the engineer from Laputa ("Castle in the Sky").

https://ghibli.fandom.com/wiki/Motro