The Legislators are insectoid aliens that occupied Earth starting in 2019. The aliens themselves differ in appearance depending on the situation, but the most common is a spiked humanoid. The aliens' homeworld is not known, but they use at least one planet as a prison camp for humans who violate their laws, particularly those against the use of mobile devices and similar technology.
A second group of Legislators, apparently serving as elite police, wear heavy power armor instead of the close-fitting spikes favored by their brethren. While Legislators have no eyes, these suits of armor have at least four small eyeholes.