Inuit People: indigenous peoples in general are under represented, but while other types of indigenous North American groups have some (poorly done usually) representation, Inuit people have none as far as I can tell.

Non American countries: China has the most populated country on earth but only has a handful of superheroes, yet you can’t walk a block in New York with out seeing one? Doesn’t really make sense does it.

Hispanic superheroes: you would think their would me more given the growing power of the Hispanic population in America.