Diego Reyes

Diego Reyes is the main antagonist for season one and the first half of season two. He was a psychotic drug kingpin and a member of the Reyes crime family, being the son of its boss Marco. He is one of the most dangerous inmates to ever serve Green River Penitentiary. Ruthless, unpredictable and prone to violent outbursts, Diego became a threat towards fellow prisoner Jeffrey Baxter.

Personality
Diego Reyes is reckless, violent, sadistic, brutal, unpredictable, cynical, machievillain, psychopathic, insane, extremely prideful, and a remorseless drug lord with a dark sense of humor and a frighteningly violent personality - who is feared even by other dangerous inmates - some of whom are as violent, insane and sadistic as Diego. Diego is also a charismatic and masculine leader.