The Undertaker, whose real name is Mark Calaway, is a retired professional wrestler known for his iconic persona in WWE. He debuted in 1990 and quickly became a fan favorite, recognized for his dark, supernatural character and impressive in-ring skills. Over his 30-year career, The Undertaker became a symbol of the wrestling industry, famous for his signature moves like the Tombstone Piledriver and his legendary streak at WrestleMania. His presence and storytelling ability made him one of the most respected figures in professional wrestling history.