Akritirian

Akritirians are a humanoid race from a series, Star Trek, and back in those days before their introduction to Earth, like many alien races in the series they are neither fully "good" nor "evil" but can be considered antagonists due to their very unique "justice" system, which can be seen as gravely immoral to most other species (especially humans).

Today, they had a better justice system, which can be seen as extremely moral to most other species (especially humans), except vampires.