Kate del Castillo Returns as the Iconic Teresa Mendoza in Season Four of La Reina del Sur

Telemundo announced the start of production on the fourth season of its global blockbuster La Reina del Sur, with international superstar Kate del Castillo (Bad Boys for Life, Ingobernable) returning as the legendary Teresa Mendoza, one of the most iconic characters in Spanish-language television.

Also set to reprise their roles are Ágata Clares, Alejandro Calva, Antonio Gil, Arturo Ríos, Cuca Escribano, Ed Trucco, Emmanuel Orenday, Isabella Sierra, Kika Edgar, Lincoln Palomeque, Patricia Reyes Spíndola, Sofía Lama, and Víctor Rebull, among others.

The network also announced that Spanish actor Daniel Grao joins the all-star ensemble this season, further elevating the cast of Telemundo’s most successful Super Series.

The stellar cast is rounded out by series newcomers Ariadne Fova, Gustavo Sánchez Parra, Jason Day, Juan Carlos Remolina, Leticia Huijara, Tamara Mazarraza, Tulio Vilavicencio and Xaviani Ponce de León.

“La Reina del Sur is a groundbreaking franchise that continues to expand the global reach of Spanish-language television while redefining its storytelling for viewers around the world. We’re thrilled to have Kate del Castillo return to lead this new season as we raise the bar once again with a bold, high-stakes chapter that will captivate audiences worldwide,” said Javier Pons, Chief Content Officer & Head of Telemundo Studios.

Kate del Castillo with Isabella Sierra

“Returning to Teresa Mendoza is always an incredible journey. She’s a character who has shaped me as much as I’ve shaped her, and every season she evolves in ways that challenge me as an actress. This new season takes her to a deeper, more emotional place than ever before, and I’m excited to step back into her world. I cannot wait for fans to see this next chapter of her story,” said Kate del Castillo.

Season four of La Reina del Sur picks up years later, with Teresa Mendoza living a new life in Madrid as a successful restaurateur alongside her daughter, Sofia, and loyal ally, Oleg. But when tragedy strikes, everything changes. Consumed by grief and driven by vengeance, Teresa returns to Mexico, where she uncovers a powerful criminal network tied to the fentanyl crisis. Surrounded by corruption, danger, and unseen enemies, she must forge new alliances and dismantle the organization from within, igniting a relentless quest for justice that could either destroy her or see her rise once more from the ashes.

Based on Arturo Pérez-Reverte’s novel, the fourth season of La Reina del Sur is written by Pablo Ilanés, directed by Javier Patrón Fox, Carlos Villegas, Claudia Pedraza, with Javier Pons as Executive Producer and Jacky Castro as Head of Production for Telemundo and Marcos Santana from Mas Ros Media, LLC as Executive Producer. La Reina del Sur Season four is a production of Telemundo Studios for Telemundo Network in the United States and Netflix as the global streaming partner.