Wolf Ruvinskis (October 31, 1921 – November 9, 1999), born Wolf Ruvinskis Manevics, was a naturalized Mexican actor and Luchador, or professional wrestler. He was married to dancer Armida Herrera. Born to a Latvian mother and a Ukrainian father, of Jewish background, they relocated to Argentina in 1923. In spite of living in extreme poverty he excelled in sports and as a professional wrestler he toured South America, the United States and Mexico. This last country became his place of residence where he stayed in the ring well into the 1960s, wrestling El Santo, Black Shadow, El Médico Asesino and Lobo Negro. As a wrestler he was introduced to the Cinema of Mexico playing luchadores, in particular a masked character he created called Neutrón.