Chico,played by Michel Duval, has been portrayed as a villain since Deadly lesson' first episode. As the leader of the Sotos Vatos at Kings Dominion Atelier of the Deadly Arts and the son of drug kingpin El Alma del Diablo, and that was kind of an inevitability. In Episode 5,the other Kings Dominion kids take a road trip to Vegas with one goal in intellect: Kill Billy's dad.
Source: blastr.com