Wolves are pretty
None of these people are members of the Quileute Nation, of course. They're playing Quileutes in the Twilight movies.
And only two of them--Spencer and Meraz--are Indians. The other two--Stewart and Korey--seem to be Asian.
One could call the claim above a case of poetic license. But I think it's more than that. It shows the myth-making process in action: a movie influencing people's perceptions of reality.
As I think we've seen, Twilight fans don't know or care which of the Wolf Pack actors are Indians. And they don't know the difference between the Quileute Nation and other tribes. To them, brown skins (Indians, Latinos, Asians) are werewolves and white skins are vampires. Quileutes are brown skins who live somewhere in the Northwest and are descended from wolves.
For more on the subject, see Quileute Werewolves in Twilight.