10 MORE Star Trek Villains Who Killed The Most

10. Kor

Perhaps a controversial inclusion here, but one must remember that Klingons are, by and large, a warrior race. Kor's introduction in Errand Of Mercy depicts him as a brutal overseer and tyrant. This was in keeping with the description of Klingon as a whole. It was only when Deep Space Nine's Blood Oath came around that the audience saw the softer side of John Colicos' portrayal.

Kor arrives as a subjugator on Organia, bringing with him five hundred of his troops. Unknown to him is that both Kirk and Spock are on the planet, posing as traders, who proceed to wage a guerilla war against the occupiers.

Kor, in response to this, seemingly has two hundred Organians put to death. Here's where the controversy arises - technically, Kor only gave the order. But even more than this - no one actually died.

So, what the heck is Kor doing on this list then? Well, the simple fact is this - the Klingon Empire was one of the most brutal organizations of the 23rd and 24th centuries, to say the least. Kor, in being the first Klingon that the audience met on-screen - ordering a mass execution, no less - becomes the figurehead for this organization.

At least he died saving lives, so there are some hero points for that.