I only realized this just the other day, but it's kinda sad that the white characters all got full full names pretty much out of the gate (James Kirk, Pavel Chekov, even Kevin Riley) but the non-white regulars were treated like the aliens, with only one name (Uhura and Sulu). This may seem overly PC, but I think that shows that, for all Trek's vaunted inclusiveness, it still viewed non-white humans as fundamentally "other." Par for the course in a late 60s show, I guess (though I, Spy was light years past Trek in the race relations department) but worth mentioning.
This isn't aimed at you, but frankly I'm sick of hearing all the bellyaching from those who weren't even alive back then trying to paste modern PC ideals on an old show. The show wasn't a political show. That only happened later, like Disney and the Lion King trying to save animals and romanticizing primitive cultures (who in reality die like rats of plague and pestilence). How many posts have we read about how the poor women were subjugated and not given prominent parts. For crying out loud, it was 50 years ago!! Have we had a women president yet? NO, so for all the PC-ness we haven't progressed as fast as people want a TV show to progress. As for references to Gunsmoke, it was a man's world and the prominent woman on the show was a slut who owned a bar. So Star Trek ain't so bad.