Cerberus, an anthropocentric group advocating militarism and a "humanity-first" supremacist agenda, appears as recurring antagonists in the series. Cerberus is founded and led by the Illusive Man, voiced by Martin Sheen. Cerberus forms an alliance with Commander Shepard against the human-abducting Collectors in "Mass Effect 2", whereas in "Mass Effect 3" they work against Shepard's attempts to destroy the Reapers, as the Illusive Man wishes to control them instead. The organization experienced numerous defections between the events of "Mass Effect 2" and "Mass Effect 3", including operatives who specialize in close combat electric whips. Megan Logan from "Inverse" praised the depiction of Cerberus in the series as a villainous entity, and opined that "nuanced complexity built upon an understandable motivation is what makes a compelling antagonist".