Robin is a Mexican luchador enmascarado, or masked professional wrestler, who works for the Mexican professional wrestling promotion Consejo Mundial de Lucha Libre (CMLL) and portrays a tecnico ("Good guy") wrestling character.
Robin's real name is not a matter of public record, as is often the case with masked wrestlers in Mexico where their private lives are kept a secret from the wrestling fans.
He worked primarily on the Mexican independent circuit, including some shows for the Los Perros del Mal wrestling promotion.
He began working for Consejo Mundial de Lucha Libre (CMLL), one of Mexico's largest and the world's oldest wrestling promotion, in 2010 not long after his father José Alvarado Nieves (also known as "Brazo de Plata") made his return to the promotion.
[7] In April 2013 Robin was announced as one of the Novatos, or rookies, in the 2013 Torneo Gran Alternativa, or "Great Alternative tournament".
[13] Robin is part of a very large family of professional wrestlers who are descendants of Shadito Cruz; most use or have used a variation of the name "Brazo" ("Arm") in their ring name.