The Verdugos are at first unseen; their forms hidden under long red and black cloaks that bore Los Iluminados' insignia. Their faces, however, were seen to be clearly inhuman, having shimmering red eyes and large mandibles, and their hands having only two long, spindly fingers with one opposable thumb. Later, when one of them was sent to hunt down Leon S. Kennedy, it discarded its cloak to reveal a thin, insectoid body, covered in a black exoskeleton and having a long segmented tail. As it tracked Leon, it would occasionally attack by thrusting its tail through the floor or ceiling grate. Its carapace is harder than steel, allowing it to survive gunfire and explosions.
The Verdugos also seem to possess very high intelligence, both showing the capability of restraint and violence. The Verdugo is capable of sneaking around and attacking its prey out of sight like a well trained monster, and demonstrates the ability to not only walk upright, but swing its arms back and forth while running, a trait found only in human beings. Verdugo demonstrates the capacity to take orders and contains high levels of comprehension, as shown when Ramon Salazar instructed one to kill Leon Kennedy and ordered the other to take Ashley Graham to the ritual.
A very good example can be seen when it grabs the knife in Salazar's hand, throwing it back at Leon not only with pinpoint accuracy, but also while using two fingers and with the blade aimed at Leon. The Verdugo does not appear to possess a thumb on either hand, but is capable of using its third claw in a similar fashion. The Verdugos also seem to stand very patiently and uniformly during several appearances.