FX's highly-anticipated Sons of Anarchy spin-off entitled Mayans MC is starting to come together, with another integral cast member signing on. John Ortiz has taken a lead role in the upcoming series, playing Esai "Taino" Osorio, the president of the Mayans MC Santo Padre Charter. The series lead character, EZ Reyes, a prospect in this club, has still not been cast at this time, but John Ortiz joins a growing cast that includes Edward James Olmoss and Clayton Cardenas.

Deadline reports that Esai "Taino" Osorio, is a "Mexi-Rican" who was born in the Bronx, before being sent to Oakland. There he lived with his cousin, Marcus Alvarez, founder and National President of Mayans MC. Esai is described, "as smart as he is deadly," just like his cousin. Edward James Olmoss is playing EZ Reyes' father Felipe who tries to set his son on a "lawful and righteous path." Clayton Cardenas is playing EZ's brother Angel Reyes, who is a "full patch member" of the Mayans MC Santo Padre chapter and is said to live with the burden of being the "lesser son" in a "proud Mexican family."

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The series is set after the events of the Sons of Anarchy finale, where Charlie Hunnam's Jax Teller was killed, centering on EZ Reyes, a prospect in the Mayans MC chapter that sits on the California and Mexico border. Reyes is caught between his desire for vengeance against the cartel and trying to earn respect from the many women he loves. The Mayans were recurring and pivotal players in Sons of Anarchy throughout the show's seven-year run on FX Networks. It hasn't been confirmed yet if any of the Mayans from SOA will return, but that may be possible.

Back in November, Emilio Rivera, the actor who played the Northern California Mayans leader Rivera on Sons of Anarchy, teased that his character may return for the spin-off. At the time, though, there were rumors that the show was actually set in the 1970s or 1980s when Jax was still a boy, but now we know that isn't the case. Since this spin-off is set after SOA, it's possible that Rivera may make his return, but since this show is set in Southern California, on the Cali-Mexico border, we may not see much of Rivera if he's still running the Northern Cali Mayans. As of now, he hasn't been confirmed to return quite yet.

Sons of Anarchy creator Kurt Sutter returns to that motorcycle world with Mayans MC, a drama series for FX that represents the next chapter in the SOA saga. Kurt Sutter co-wrote the pilot script with producing partner Elgin James. Kurt Sutter will direct the pilot episode and serve as Executive Producer, with James serving as Co-Executive Producer. The pilot is being produced by Fox 21 Television Studios and FX Productions, with production scheduled to begin in March. John Ortiz is no stranger to the small screen, having previously starred in HBO's Luck and Togetherness, along with Fox's Rake, but he is best known for his big screen work. The actor will next be seen in Kong: Skull Island, hitting theaters March 10, and in the remake Going in Style, arriving April 7.