Add Yahoo as a preferred source to see more of our stories on Google. Some of the most famous alien races in all of science fiction originate in the "Star Trek" universe. From the violent, ...

It's not just iconic characters like Kirk, Spock, and Janeway that have made "Star Trek" one of the best science fiction franchises of all time. It's also its memorable alien races like the Klingons, ...

That said, there are a handful of alien races in the franchise that have become particularly essential and enduring to the "Star Trek" mythos. And then there are other aliens that earned a spot on ...