Diego Alcazar is a fictional character from General Hospital, an American soap opera on the ABC network. Diego is the son of Lorenzo Alcazar and Maria Sanchez. Ignacio Serricchio originated the role of Diego in October 2004 and portrayed him until the character's supposed death in November 2006. Serricchio returned briefly in 2008, when it is revealed Diego is alive and terrorizing the citizens of Port Charles as the Text Message Killer.

Lorenzo Alcazar is a fictional character on the American ABC soap opera General Hospital, originated by actor Ted King, who previously played Lorenzo's deceased brother Luis Alcazar. He was temporarily portrayed by Jay Pickett in 2006.