A creature from outside the known galaxy who causes the deaths of Anakin Solo and Chewbacca, not to mention countless thousands of other civilians in their quest to purify the galaxy.

An impudent alien race that's outlook on life is incredibly flawed and ridiculous. The glorious Galactic Empire under the rule of Emperor Palpatine would have completely eradicated the Yuuzhan Vong had it still been in power.

A kinky alien race in the Star Wars expanded universe who are into S/M and bondage. They have a type of weapon called an amphistaff which goes from a limp whip-like shape to a hardened staff shape, and hence are similar to human males. They are also into emo cutting.

They use biotech exclusively, and no regular tech. This means for example, that their doorways are actually the anus and sphincter of some giant animal, and the ship has to open its sphincter to let them off. They enjoy the erotic contractions provided by living armour and clothes. Instead of lubricant they use something called Blorash Jelly.

They worship Jaina Solo, presumably because of her hot ass.

They are able to improve themselves by cutting off parts of their body and replacing them with alien limbs. For example, a Yuuzhan Vong with a tiny dick would castrate himself and implant an elephant trunk or a live snake down there. If it didn't take hold and dropped off, he would be a shamed one. Surprisingly, he would not be shamed by walking ro...

a race outside of the force under the command of Onimi, but really under the command of Shimmra. they're quest was to purify the galaxy of all the "infedels" and there droids and any mechanical machine or building. everything of them was living not a single peice of equipment was mechanical. they killed chewbacca anakin and billions of people in the galaxy