"Sons of Anarchy" spinoff has been greenlit by FX and ever since that revelation, there has not been news about who will appear in the spinoff or not. Plot and cast of the spinoff have been a topic by most fans.
It has already been reported that "Sons of Anarchy" spinoff will be about the Mayans club with the title "Mayans MC." It will be set a few years after the first "Sons of Anarchy." Fans that are hoping for the appearance of the cast of the previous show will be somehow disappointed, but the new cast is not bad. Fans already know that Emilio Rivera, who once played as Marcus Alvarez in "Sons of Anarchy," will somehow be involved in the series.
It came as no surprise to fans that the first character named for the series is Marcus Alvarez, as he is the president of The Mayans North California chapter. When Emilio Rivera confirmed that he will be coming back, fans actually hoped that he will be a regular cast, especially when he hinted on his Instagram post about "Sons of Anarchy" spinoff that he is involved in this different chapter of the show. Of course, this could mean that Marcus Alvarez will appear in every single episode or have a huge role in the show. Fans can only hope that he will.
Because of this revelation, many fans believed that the appearance of most of the previous cast from SAMCRO will also be shown in "Sons of Anarchy" spinoff. Although the Mayans and SAMCRO were not really in good terms with each other and were frequently at odds, it was seen in the final season of "Sons of Anarchy" that Jax Teller (Charlie Hunnam) and Marcus Alvarez formed a partnership between the two clubs and this should be shown in the spinoff series.