Gualberto Antonio Castro Levario (12 July 1934 – 27 June 2019) was a Mexican singer, actor and television personality. He was best known for singing with Los Hermanos Castro (aka "The Brothers Castro") and for hosting the television program "La Carabina de Ambrosio". He played the part of Tony in the Mexican production of "West Side Story" in 1977. Castro was born in Mexico City.