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.

Manuel González Rivera was a Mexican professional wrestler, or Luchador best known under the ring name Dr. Wagner. González made his professional wrestling debut in 1961 and worked the majority of his career for the Mexican professional wrestling promotion Empresa Mexicana de Lucha Libre (EMLL). As Dr. Wagner, he worked most of his career as an enmascarado, or masked wrestler, losing his mask to El Solitario in 1985. Along with Ángel Blanco, González formed one of the premier tag teams of the 1960s and 1970s called La Ola Blanca. One of his sons works as a professional wrestler under the name Dr. Wagner Jr., and another son wrestled as Silver King until his death in 2019. One of his grandsons made his wrestling debut in 2009 under the name El Hijo de Dr. Wagner Jr. or Dr. Wagner III.