Suggestions by @palamepaj

Mickey Mouse

as Disney in Characters by media

Kowalski (Aurora Borealis)

as Aurora Borealis and Company in MY OCS

Nami

as Japanese in Characters by heritage

Nico Robin

as Japanese in Characters by heritage

Amy Rose

as Japanese in Characters by heritage

Boa Hancock

as Chinese in Characters by heritage

Isla Kokoro

as Japanese in Characters by heritage

Team Rocket Trio (Jessie, James, and Meowth)

as Japanese in Characters by heritage

Chi-Chi

as Japanese in Characters by heritage

Mewtwo

as Japanese in Characters by heritage

Princess Annika

as Dutch in Characters by heritage

Princess Rosella

as Italian in Characters by heritage

Odette (Barbie)

as Russian in Characters by heritage

Clara (Barbie)

as Russian in Characters by heritage

Nikki O'Neill

as Black in Characters by heritage

Princess Aubray

as Barbie in Characters by media

Isla Kokoro

as Barbie in Characters by media

Elina

as Barbie in Characters by media

Mariposa

as Barbie in Characters by media

Princess Rosella

as Barbie in Characters by media