Creepiest looking creature in the entire history of Star Trek?

Yarnek from “The Savage Curtain” , he looked like a pile of turds. And that oil slick thing that killed Tasha Yar in “Skin of Evil”.

 

Believe it or not, Shari Lewis wrote "The Lights of Zetar"......

 

Those Kermit eyed reptilian bastards from Schisms
https://tng.trekcore.com/hd/albums/season-6/6x05/schisms-hd-329.jpg

 

How about those alien earworms from "The Wrath of Khan"? Double yuck yuck!

 

The Vidiians and the Devidians are creepy as well

 

Some good suggestions already in this thread. Salt vampires, solanogen-based lifeforms from Schisms, Devidians, Vidiians,, Borg (FC), the Khan parasites, and those Conspiracy parasites, all were creepy looking.

Though the Vidiians were to a slightly lesser degree, imho.
And the final 'chestburster' scene with Remmick from Conspiracy was so over the top that it only tickled my sense of laughter.

I thought the Satarran from Conundrum was pretty creepy, too, even though we only see him for a fraction of a second. And the Lethean from Distant Voices. And those grey aliens from Silent Enemy.

I suppose the species that were supposed to be the most horrific looking would have been the Medusans, but (of course) we never get to actually see them. Driving all Star Trek fans insane would destroy their source of income.

 

Scouring my memory of this scene, I believe this was the first time the idea of intelligent alien life, completely different from what I thought it would look like (people in suits) was realized.

 

The Ba'ul is meant to be creepy, but it's just the coolest over-the-top emo alien ever.

 

While they may not have looked too scary, I think the parasites from Operation Annihilate are by far the scariest creatures in Trek.

 

The Genesis worms ought to be mentioned here...

 

There was also one particularly creepy-looking navigator there on the bridge once.

Timo Saloniemi

 

How did we forget these!

https://pbs.twimg.com/media/EOcCiG-WsAAklno.jpg

 

This little guy was supposed to be cute but if it crawled up to me in the woods, I'd freak out:



And that goes double for its momma:

 

While not a "lifeform" as we understand it (and Spock referred to it as a "robot"), but the titular "Doomsday Machine" had me pull the "behind the sofa" routine when it first aired! I was not quite 5 yet and highly impressionable. That slow approach sequence with the fiery gullet enhanced by the rhythmic, trodding beat of Sol Kaplan's score literally drove me to duck behind my father's preferred Danish Modern chair (still have the pair of seats), crying, almost screaming to "Make it go away!!!" I don't recall any other memories of Trek during its primetime run. I suspect my father made sure I did not see it lest I suffer another panic attack. On the other hand, I do remember fleeting elements of "Lost in Space", so I guess I was allowed to watch that.

Nowadays, I'll wake in the middle of the night, switch on the TV and catch, oh, say, John Carpenter's "The Thing". Afterwards, I'll turn out the light and drift to sleep with nary a worried thought. But in 1967, that tomato trellis wrapped in cooking foil scared the ever living crap outa' me!

 

A flying order of eggs over easy.

 

GAH! I've been *trying* to forget those since the episode first aired! NOT because they're scary.

In our house, they were referred to as flying pancakes (which may have something to do with how my mom's pancakes looked ).

 

Humans. I keep waiting for them to redesign them like the Klingons, but they're always depressingly the same.

 

Sorry, I find that hilarious. It looks like Big Bird's hippie uncle.

I'll admit there's a but if creepiness, but mostly I just find these things cute and funny.

I suppose it's worth noting that I also find the "baby" from David Lynch's "Eraserhead" somewhat cute and comical, and cannot ever watch the film as the "horror" it's billed as.

Anyway, the two "Star Trek" races that unironically creep me out are the Borg (Voyager's version) and the Vidiians.

 

That is clearly not true.