People who have strong negative feelings that get turned into monsters by Caerula Adamas from Zundar’s Needle. The names of the loveless foreshadow what kind of monster they become.
Season 2 Loveless
People who are overcome with jealously and are turned into monsters by The Vepper by launching Dadacha at their victim, after which he latches himself to the victim's face and transforms the said victim into a loveless. The names of the loveless are puns on what kind of monster they become.