Marco Rodriguez's sister is a survivor of the outbreak in AMC's Fear The Walking Dead. She resides at the El Pelicano supermarket in the eastern part of the city of Tijuana, Baja California with her brother Marco and his gang.
Nothing is known about this girl's life prior to or as the outbreak began, except that she lived in Tijuana, Baja California and was possibly involved with the Los Hermanos gang.
Marco's sister is encountered inside a supermarket in East Tijuana. As Nick and Luciana gather supplies, Nick sees Marco tending to his sister, who is suffering from withdrawal. When Marco and his thugs attack Nick for stealing food, Nick convinces Marco to spare him so he may supply Oxy in order to help his sister.
This woman can be seen outside the supermarket with other women and children, packing up their belongings in preparations for their move to La Colonia once it is captured by the gang.
With the supermarket abandoned and the gang killed at La Colonia, this woman's fate is unknown, along with the rest of the families and junkies as they were moved to an undisclosed location.