Andrés, listed in the credits as "Mr. X" was a high ranking Mexican politician who provided protection for Miguel Ángel Félix Gallardo and his drug cartel.
Félix paid the politician's nephew Rubén Zuno Arce for an introduction. While initially appearing aloof in front of Félix, Mr. X secretly evaluated the Guadalajara cartel and approved supporting the organization as it ventured into the cocaine trafficking business. He warned Félix about a DEA operation to arrest him as Félix was waiting at the American border.
After the Rancho Búfalo raid, Félix persuades him to a face-to-face meeting, and convinces him against making any moves against the DEA.
In order to find the extent of American knowledge of the Mexican government's involvement with Félix's organization, he supported the DFS's plan of kidnapping and torturing DEA agent Enrique Camarena Salazar, and faced questioning by his superiors for his involvement.