William Arturo Muñoz González is a Mexican luchador (Spanish for professional wrestler), known both nationally and internationally under the ring name Rush. He is currently under contract with the Mexican professional wrestling promotion Consejo Mundial de Lucha Libre (CMLL) as well as the U.S. based Ring of Honor (ROH). Muñoz's father Arturo Muñoz is also a professional wrestler, working for CMLL under the ring name La Bestia del Ring. William's younger brothers also work for the promotion as masked wrestlers, ring names Místico and Dragon Lee. While most luchadors portray clear cut good guys or bad guys in the ring, Rush portrays a character that straddles that divide, his in-ring actions is often chaotic or brawling, with tendencies to cheat but is still popular with the fans.