The Undertaker is the ring name of Mark William Calaway. He was born on March 24, 1965 and he became a professional American wrestler as an adult. He originally began wrestling in the WCCW (World Class Championship Wrestling) in the year 1984, but he joined WCW (World Championship Wrestling) in 1989. He did not get signed back in 1990 and he signed a contract with the WWF (World Wrestling Federation) later that year and finally changed his ring name to be permanently The Undertaker. Ever since 1990, he has been with the WWF and is one of the longest wrestlers to have a contract with the WWF. He loves martial arts and is a very prominent boxing fan. He watches UFC matches a lot and also won a very important boxing fight in 2005.