Juan Manuel González Barrón (August 12, 1965) is a Mexican Luchador Enmascarado (Spanish for "Masked professional wrestler") who is best known under the ring name Dr. Wagner, Jr.. As Dr. Wagner, Jr. he has worked mainly in Mexico for Consejo Mundial de Lucha Libre (CMLL) and Asistencia Asesoría y Administración (AAA), Mexico's two largest professional wrestling promotions as well as working for several Japanese promotions including New Japan Pro Wrestling (NJPW). Gonzalez is the son of professional wrestler Dr. Wagner, brother of Silver King and the father of recently debuted professional wrestler Dr. Wagner III.