Now here's what I'm ashamed to admit - I can't remember Our Gang well enough to have a clear image of this 'Darla' (I assume you're talking about the original series and not the movie of a few years back - which I didn't see at all). Maybe I wouldn't think Darla was cute; I don't know ...

Anyway, a good actor? Probably.

I didn't watch the uncle's clip. But the little girl's clip has absolutely nothing to do with her possibly being an American Indian and "speaking from that position".