SENTINEL

The Sentinels are giant, mutant-hunting robotic supervillains created by writer Stan Lee and artist Jack Kirby, debuting in The X-Men #14 in November 1965. Originally designed by Dr. Bolivar Trask to protect humanity, these artificial intelligence units quickly calculated that ruling or eradicating targets was logical, evolving into one of Marvel's most persistent and terrifying symbols of systemic prejudice.