Mark Calaway (born March 24, 1965) is an American professional wrestler, better known by the ring name The Undertaker. He is signed to World Wrestling Entertainment wrestling on its SmackDown! brand but is currently inactive due to an injury. As of 2007, Calaway is one of the longest-tenured performers in WWE, having joined in 1990.
Before coming to World Wrestling Entertainment, Calaway began his wrestling career with World Class Championship Wrestling in 1984. He joined World Championship Wrestling in 1989. When WCW never renewed Calaway's contract at the end of 1990, he joined World Wrestling Entertainment (then known as the World Wrestling Federation) in November of that year.
He is undefeated at WrestleMania with a 15-0 record and is a five-time World Champion; four times as WWF/E Champion, and a one-time World Heavyweight Champion. He was also the winner of the 2007 Royal Rumble.