What is this, the “Han shot first” of Star Trek???
Well, yeah, bonus points to one of the only (if not the only) episode that has later been definitely declared not to be considered canon later. You know the episode sucks giant space donkey balls when …
Of all the vile villains on the Original Series, the ones whose vileness actually aroused my anger (really, I got angry at a show) were the titular pseudo-Greeks from Plato’s Stepchildren. Man did I hate those guys. Kirk and friends show up to help cure the Greeks’ leader’s illness and he spends the rest of the episode tormenting and humiliating the helpless crew. He forces Kirk to slap himself, forces Spock to fight Kirk, makes everyone dance for him, removes Spock’s emotional control (!) and continues the apparently life-long torture of a dwarf who happened to be born without telekinetic potential.
The whole thing is so over the top vile (not really evil per se, I mean, these guys aren’t genocidal or anything) that by the end of it all I really, really wanted Kirk to phaser blast and/or karate chop these lunatics with extreme prejudice. Just completely wreck them. And that’s what the dwarf wants to do, but for some reason Kirk convinces him he’ll be “just like them” if he carves up their leader with a knife. I guess he has a point, but damn if I didn’t want to see those guys get what they gave.
I still watched the series, but I haaaaated that episode. If I remember right, their justification was that the subservient race on that planet was “evolving towards greater intelligence” or some stupid teleological crap like that. Really lets you know Star Trek is Space Opera and not science fiction. Fly far enough forward in time and you’ll poké-evolve into an iguana!
There are books with a (weak) explanation for the surfer dudes with Khan. Something to do with the genetic tinkering that resulted in the original group having odd effects when they had kids, turning said kids into blond surfer dudes. They had to explain it somehow, I guess.
I’ll give McGivers one thing – damn that man was hot!fanning self Also creepily manipulative, but…wow. She was still an idiot.
From the POV of those in the Delta Quadrant, it’s probably Janeway. Right now on TV there’s an episode where a Delta Quadrant alien kidnaps her and Seven because a treaty Janeway made with the Borg lead to his entire civilisations being destroyed - billions of people on several planets being killed or assimilated. Janeway isn’t even the slightest bit remorseful.
I don’t really remember Ensign Cutler (the series wasn’t making that much of an impact on me even before the episode in question), so I’ll have to say the other two, particularly the first. Bad science is the bread and butter of Trek, after all; bad morality, particularly self-righteously bad morality, is much harder to accept.
I wonder if it wasn’t a sneak attackon the theory of evolution? The whole episode propounded the idea that persons who believe in evolution will, because of that belief, be willing to commit atrocities.