Suggestions by @palamepaj

Grigori Rasputin (Anastasia)

as Russian in Characters by heritage

Mandark Astronomonov

as Russian in Characters by heritage

Terra (Teen Titans)

as Russian in Characters by heritage

Princess Zelda

as Japanese in Characters by heritage

Azula

as Japanese in Characters by heritage

Sora

as Japanese in Characters by heritage

Mojo Jojo

as Japanese in Characters by heritage

Aku (Samurai Jack)

as Japanese in Characters by heritage

King Bowser Koopa Sr.

as Japanese in Characters by heritage

Mok Swagger

as Canadian in Characters by heritage

Wolverine (James "Logan" Howlett)

as Canadian in Characters by heritage

Glimmer

as Korean in Characters by heritage

Maya Santos

as Latino in Characters by heritage

Miguel Santos

as Latino in Characters by heritage

Puss in Boots (Shrek)

as Latino in Characters by heritage

Santana Lopez

as Latino in Characters by heritage

Sailor Moon

as Japanese in Characters by heritage

Cat Valentine

as American in Characters by heritage

Shego

as American in Characters by heritage

Leatherface

as American in Characters by heritage