MarK WILLIAM CALAWAY (born march 24,1965) is an american professional wrestler,better known by his ring name UNDERTAKER.He is singned to WWE,currently wrestling on the SMAKEDOWN brand.Calaway began his wrestling career with WORLD CLASS CHAMPIONSHIP WRESTLING in 1984.He joined WORLD CHAMPIONSHIP WRESTLING(WCW) as "mean" mark callous in 1989.when WCW did not renew calaway's contract in 1990,then he joined the WWF(later become WWE in 2002) as the undertaker in november of that year.now,he is one of the senior performers in the wwe.
The undertaker has two contrasting gimmicks which are the DEADMAN and the AMERICAN BAD ASS.The undertaker half brother is KANE(sone of paul,he is elder brother of undertaker),whom he has teamed up with as brothers of destruction.The undertaker is undefeated at WRESTLE MANIA with a 17-0 record and is a six time world champion(2 time www champion,2 time world heavy weight heavy champion.He was also the winner of 2007 royal rumble in which he became the first man to win the rumble at number 30.