Bray Wyatt
He was the leader of and the dominant force behind the Wyatt Family and, after, became the dangerous and sinister Fiend - but the man you will know as Bray Wyatt from his fantastic body of work in WWE is actually named Windham Rotunda. His father, Mike, also wrestled in WWE as IRS in the 1990s, while Bray's (Windham's) brother, Taylor Rotunda is better known to audiences as Bo Dallas.
Aleister Black
You may better know him as the threatening master of the Black Mass, but WWE's resident swift kick artist is not actually named Aleister Black, or though you could argue that is a name that fits his character well enough. Black's real name, in fact, is Thomas Bugden.
Will John Cena beat Ric Flair's record? A former WCW Champion thinks so HERE
Asuka
She's the Empress of Tomorrow and, for over a year, she was a truly dominant force in NXT as the Women's Champion. Yes, it's Asuka, the SmackDown live Superstar and a major player in the women's division. Her real name is Kanako Urai, with her screen name arguably more palatable to western audiences.