The main antagonist, Humberto Barrazcosa hasn't appeared physically in the story yet. But I think I showed his presence and power very well with his underlings.
Just starting with Fernando Muñoz, the one that participated the most in the story until now. A detective that took charge of the mission to capture the UltraViolent (one of the protagonist).
Another one is Victor Soraza. Who is participating on the current part of the story. Fernando asked him for help to deal with Emilio (the main protagonist). I hasn't revealed what's his relation with Barrazcosa, but we do know that he's a classist.
And finally, as of now, there's Enrique. He appeared on Chapter 8 (earlier than I had planned for him to appear). He's doing his own thing but for the same goal. He's a lawyer and Fernando doesn't like him very much.
There will be a LOT MORE of them throughout the story!