Angelo "Angel" Juan Marcos Batista is a fictional character in the Showtime television series Dexter and the novels by Jeff Lindsay upon which it is based. He is portrayed in the television series by David Zayas. Batista spends much of the series as a Sergeant before being promoted to Lieutenant in the final season.

Captain María Esperanza di Alma LaGuerta is a fictional character portrayed by Lauren Vélez in the Showtime television series Dexter. In the series, she holds the position of lieutenant at the fictitious Miami-Metro Homicide Department. While initially depicted as a protagonist, Maria LaGuerta, who serves as the superior officer to main characters Dexter and Debra Morgan, evolves into one of the primary antagonists by Season 7.