3 Biggest WWE Superstars who came from other companies, and 3 who were created in WWE itself

#3 The Undertaker (homegrown)

The Undertaker

After a forgettable stint in WCW as 'Mean Mark' Callus, Mark Calaway signed a contract with WWE in 1990 and first appeared at Survivor Series that same year. Initially a heel, The Undertaker soon became one of the hottest acts on WWE TV and his popularity led to him defeating Hulk Hogan for the WWE title at Survivor Series 1991. Three decades later, The Undertaker is still affiliated with WWE and Vince McMahon has stated on many occasions how much Mark Calaway means to him as a person.

The Deadman's legendary WrestleMania winning streak was one of the biggest USPs of the show at one time. He reinvented his character and donned the biker persona in 2000, ditching it in late 2003. The Undertaker has won 7 World titles during his WWE run. He has only been defeated twice at a WrestleMania. At one point in "Undertaker: The Last Ride" documentary, Vince McMahon almost broke into tears when asked what The Undertaker means to him, and refused to answer the question.