The Orions are an alien race from Star Trek who tend towards the role of space-pirates, ambushing and attacking smaller vessels - they are not as big a threat to the Federation as Romulans, Klingons or the Borg but can still pose a danger to trading vessels that frequent certain areas of space. They are perhaps most infamous for being involved in slave traffic of their own species, as well as others.

The Orions appear in the original Star Trek television series, as well as the animated series, Enterprise, a number of licensed comics and novels and the MMORPG Star Trek Online. J. J. Abrams' Star Trek film features a friendly Orion student at Starfleet Academy, suggesting that in the movie's universe they are not hostile to the Federation and might even be members or allies.

(this is not surprising as Star Trek as a whole does not create "evil" species, rather evil individuals within societies that are different from the Federation but not necessarily truly malevolent (for example not all Klingons are evil and there are "good" Romulans, even Borg have some heroic "Liberated" variants such as Seven of Nine).

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