is an semi-retired American professional wrestler. He is best known for his stint in the World Wrestling Federation under the ring name Damien Demento. Professional wrestling career Early career After training under Johnny Rodz, Theis made his debut in 1987 under the ring name Jonn Reinhart. He soon renamed himself to Mondo Kleen and began wrestling on the independent circuit. In September 1992 he had a try out match with WCW, wrestling as Mando Phil. World Wrestling Federation (1992–1993) After The Bushwhackers helped forward of a tape of Theis performing an interview, the World Wrestling Federation signed him to a contract. Theis, under his Mondo Kleen ring name, debuted in WWF at a live event on October 2, 1992 in a losing effort to Jeff Jarrett. On the October 12 episode of Superstars of Wrestling, Theis made his televised in-ri...