José Casas Ruiz (January 10, 1960) is a Mexican professional wrestler(called a Luchador in Spanish) and trainer currently working for Consejo Mundial de Lucha Libre (CMLL) under the ring name Negro Casas. He is the son of former wrestler, turned referee Pepe Casas and brother of professeional wrestlers El Felino and Heavy Metal. Casas has trained several wrestlers, including Mephisto, Kazushige Nosawa, T.J. Perkins, Rocky Romero, and Ricky Marvin. Casas has often been referred to as the "Ric Flair of Mexico."