10 Most Powerful Villains In Star Trek History

10. Charlie X

What happens when you give a seventeen year old who's been isolated for most of his life incredible powers, seemingly over reality itself?

Well, in the case of Charlie, it turns out you get a rather big problem. Bestowed with unimaginable power from the Thasians, it quickly becomes clear that Charlie intends to use his new abilities for less than stellar purposes - especially when he begins to react violently towards Yeoman Rand when she doesn't return his "romantic" gestures.

Indeed, the crew are largely unable to stop Charlie, as he is able to change reality around them to gain the upper hand any time anyone tries. Had the Thasians not come back to claim their mistakes, it seems almost sure that the Enterprise's unfortunate crew might have still been under the young man's control - if he allowed any of them to live after growing tired of them.