The Undertaker is an American professional wrestler. He is a four-time ‘WWF/E Champion’ and a three-time ‘World Heavyweight Champion.’ Considered to be one of the most popular wrestlers in the world, he began his wrestling career with ‘World Class Championship Wrestling’ (WCCW) in 1984. He became associated with ‘WWF’ (WWE from 2002) in 1990 and has worked for the promotion since then, becoming WWE's longest-tenured performer. Born as Mark William Calaway in Texas, he took a special interest in sports. He played basketball for his high school team and then played college basketball while studying at the ‘Texas Wesleyan University.’ He ventured into wrestling in 1984, and over the next few years adopted a variety of gimmicks and ring names in order to create a successful image for himself. He assumed the ring name ‘The Master of Pain’ in 1989 and eventually started calling himself ‘The Punisher.’ While working with the ‘World Championship Wrestling’ (WCW), he adopted the ring name ‘Mean Mark Callous,’ a name devised for him by Terry Funk. However, it was only after joining the ‘WWF’ that he finally assumed the identity ‘The Undertaker’—the name that catapulted him to international fame, making him one of the most popular wrestlers in the world.