I already discussed tieflings, which are actually considered "native outsiders" (well, provided you're playing on the plane on which said individual was born. A tiefling born in Sigil but come to the Forgotten Realms, say, would be a plain ol' outsider I guess). The other side of the tiefling coin is aasimar, which are people descended from angelic influence rather than demonic or devilish. They have similar abilities (light instead of darkness, a different handful of small elemental resistances, etc.) and though they don't have a rad historic d100 table you can roll on (that I know of) you can kind of extrapolate; vestigial wings might be white-feathered instead of batty, as an example. That kind of thing.
Other than that, though, I really like Night Hags. Hags in general, I guess. We've had a couple of games which featured them heavily, and they're a thematic I enjoy. They have all that terrifying folkloric flavor I tend to enjoy, and are also not a terribly overdone beastie. They're powerful without seeming unable to be overcome, they're sinister and intelligent and more than capable of reason and diplomacy. They're a great baddie to have, because depending on the party, maybe they can just get along? But if they don't, it's sure to be an interesting and ruthless fight.
