Some of my picks, in no particular order:
Uhura
Kirk
Spock (I actually think he's very handsome. Not sure why lots don't think so.)
Kira Nerys
Chapel
Bev Crusher
Sarek
Zarabeth
There's been a good number of beautiful people on the show.
I think Nimoy was handsome when he was young, but he had very unusual features. People are usually more inclined to call people handsome or beautiful if they have more generic features. Although, I think more peopel wouldbe inclined to call him handsome in his 20s, when his features were somewhat softer. In his mid-30s, his cheekbones got more prominent and his features sharper, which made him look interesting, but less similar to the conventional beauty standards. Also, the bowl haircut was not that helpful.
Sadly, he aged a bit too early and his looks deteriorated by the time the TOS movies were being made. But, oddly enough, these days he looks great for his age. Another example of the Iggy Pop Syndrome - ages before his time, but then stays the same the next 30 years, and as a result, looks great as an old guy?
BTW Spock's eyebrows were quite awful in the first couple of TOS episodes - fortunately they gave him a much more attractive look soon afterwards:
before:
after:
In a similar way, Worf's early look was a lot less attractive:
early TNG Worf with his huge forehead:
later:
Cardassian makeup also cahnged between what it was like when they were first introduced in TNG and what it was like later, and again, I much prefer the later version. The uniform also underwent a change, although it was similarly tight in both cases.
I'm not sure if I would've realized it was the same actor if I didn't know it already (even his voice sounded a bit different), although Marc Alaimo's physique is quite easily recognizable.
BTW, anybody besides me think that Nana Visitor and Chase Masterson actually look a lot sexier with the nose ridges than without?
I find Bajoran noses very cute.
And whether others agree or disagree, I think that there is something about the latter Cardassian makeup (not the early TNG one) that makes every actor look sexier than when they're not wearing it.
