Juan Manuel González Barrón is a Mexican luchador who is best known under the ring name Dr. Wagner Jr., having used that name since 1987. He is the son of Manuel González Rivera, better known as Dr. Wagner and the brother of the late César Cuauhtémoc González Barrón, who worked primarily under the name Silver King. His son made his lucha libre debut 2009 under the ring name El Hijo de Dr. Wagner Jr. González was once married to professional wrestler María Moreno León, better known as Rossy Moreno.

El Hijo de Dr. Wagner Jr. is a Mexican luchador enmascarado, or masked professional wrestler, currently working Major League Wrestling (MLW) in the United States, Pro Wrestling Noah in Japan, and also on the Mexican Lucha Libre AAA Worldwide and the Independent circuit, including International Wrestling Revolution Group (IWRG) portraying a tecnico wrestling character. El Hijo de Dr. Wagner'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 is the grandson of Dr. Wagner and the son of Dr. Wagner Jr. His mother is professional wrestler Rossy Moreno and he is part of both the Wagner and the Moreno wrestling families.