Breath of the Wild's minor characters are likely advanced Miis

For years, fans have theorized that Nintendo used Miis to build many of the NPCs (non-player characters) in The Legend of Zelda: Breath of the Wild. Many share Mii-like characteristics — the shape of their face, eyes, nose and mouth, for instance — a...

source https://www.engadget.com/legend-zelda-breath-wild-npcs-mii-umii-heyimheroic-modding-130508668.html