Roberto is a Character on DEXTER. He is a Cuban-american and the uncle to Oscar, a 10 year old immigrant who was found at the junkyard where Jorge Castillo and his wife Valerie acted as Coyotes, hoarding immigrants from Cuba and forcing their families to pay a fee to release them.
Lieutenant Maria LaGuerta forms a bond with the young boy, watching over him as she even considers adoption until Oscar's uncle is located and called in to pick him up. Oscar is happy to see his uncle, whom expresses the same joy and remarks to him being a real special boy. Oscar leaves with his Uncle, but not before giving LaGuerta a kiss on her cheek...letting her know that she's still human inside despite the political monster she's become.