Catalina Vialpando (November 1, 1969 - October 2001) is a fictional character in the GTA series who appears as the main antagonist in Grand Theft Auto III (set in 2001) and as a major character in Grand Theft Auto: San Andreas (taken place in 1992). She is a criminal in Red County in GTA San Andreas and the leader of the Colombian Cartel in GTA III. Additionally, Catalina is also the cousin of Varrios Los Aztecas leader Cesar Vialpando.