With brute strength, and being a powerful vampire who formerly looked to The Dragon as his mistress, Primo works under Buzz at Guilty Pleasures and repeatedly lets people in who are not supposed to be allowed, causing fights until Jean-Claude and Anita intervene. Primo is almost powerful enough to beat Jean-Claude, until Anita steps in and blood-oaths him. He wants to be master of the city, but is not powerful enough. Primo seems to be able to feed off violence, like Jean-Claude feeds on sex. Primo also causes Anita "harm from a distance". He can rapidly heal fatal wounds by drinking the blood of a preternatural creature.
After he is overcome by Jean-Claude and Anita, the Dragon permits Primo to remain as their servant and expresses a desire to discuss "Council business" with them.