10 Best Star Trek Characters Only In One Episode

11. Honorable Mentions

Before getting into the list, there are some characters who are worth mentioning. No less memorable than the others but who couldn't be properly included in a top ten list.

Morgan Bateson

Bateson is a character who certainly sticks out in the memories of TNG fans but more for the story potential that he represented than anything he said or did in the episode. In many ways his story would have been more interesting than the story which led to it but it's one we don't get to see. However as a character there just isn't very much to judge him on.

Gary Mitchell, Apollo and Trelane

This entire list could have been made up of only TOS characters. It's a series which lends itself to extremely memorable one shot characters and Gary Mitchell is most definitely one of them. However, to be fair to the rest of the franchise we keep it down to just a few original series examples. There are also a lot of godlike aliens in TOS like Apollo and Trelane, who really stand out but are for the same reason not included.