Emilio Rivera (born February 24, 1961) is a distinguished Native-Latino American businessman, entrepreneur, film and television actor, and producer, best known for his powerful portrayal of Marcus Álvarez, the president of the Mayans Motorcycle Club, in the acclaimed FX series Sons of Anarchy (2008–2014) and its spin-off Mayans M.C. (2018–2023). With a career spanning over three decades, the San Antonio-born actor has become one of Hollywood's most recognizable "tough guys," often cast in high-stakes crime dramas and action films such as Con Air (1997), Traffic (2000), and Spider-Man: Homecoming (2017). Beyond his signature biker roles, Rivera has displayed significant range in series like Z Nation, where he played Hector "Escorpion" Alvarez, and the Netflix coming-of-age dramedy On My Block.