In boldly going where no man has gone before, the crew of the Enterprise (in all its incarnations) have battled evil in many forms. TIME looks at some of the best (or, worst).
From Klingons to Borg: The Villains of Star Trek
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KLINGONS. John Colicos as the Klingon Kor in the 'Star Trek' episode, "Errand of Mercy." While Klingons are probably the most famous villains of 'Star Trek' lore, by the 'Star Trek: The Next Generation' era they had both changed appearance physically (sporting elaborate boney foreheads) and had become allies of the United Federation of Planets.
