Aurelio Casillas is a fictional character from the popular Spanish-language television series, El Señor de los Cielos. He is portrayed as a powerful drug lord who rises to prominence in the world of organized crime. The character is known for his cunning strategies and ruthless nature, which help him navigate the dangerous landscape of the drug trade. Throughout the series, Aurelio's life is marked by conflicts with rival gangs, law enforcement, and personal relationships. His character is central to the show's exploration of themes such as power, loyalty, and betrayal, making him a compelling figure in the narrative.