Mark William Calaway (born March 24, 1965) is an American professional wrestler better known by his ring name The Undertaker. He is signed to WWE and is the company's most tenured competitor. Calaway began his wrestling career with World Class Championship Wrestling (WCCW) in 1984. He joined World Championship Wrestling (WCW) as "Mean" Mark Callous in 1989. When WCW did not renew Calaway's contract in 1990, he signed with the World Wrestling Federation in October and, after shortening his name from Kane the Undertaker to simply The Undertaker, has remained with the company since.

The Undertaker has two contrasting personas. The first is the role of The Deadman, an undead, occult-like figure, which has consisted of many different styles. He debuted his original Deadman persona during his own on-camera debut at Survivor Series (1990). At this event, the Undertaker was clad as a Western mortician. Next, in October of 1998, the Undertaker appeared as the leader of the Ministry of Darkness (with similar apparel). Since WrestleMania XX, the Undertaker has appeared as a hybrid version of the Deadman character, using elements of the previous Deadman incarnations.

Vincent Kennedy "Vince" McMahon (born August 24, 1945) is an American professional wrestling promoter, announcer, commentator, film producer, actor and former occasional professional wrestler. McMahon is the Chairman, CEO and Chairman of the Executive Committee of professional wrestling promotion WWE. Upon acquiring World Championship Wrestling (WCW) and Extreme Championship Wrestling (ECW), McMahon's WWE became the sole remaining major American professional wrestling promotion (until the national expansion of Total Nonstop Action Wrestling and Ring of Honor).

As an on-camera character, he can appear on all WWE brands (though the majority of the time, he appears on Raw). McMahon plays a character known by the ring name Mr. McMahon, based on his real life persona. In the world of WWE, he is a two-time world champion, having won the WWF Championship and ECW World Championship. He was also the winner of the 1999 Royal Rumble.

Vince is the husband of Linda McMahon, with whom he ran WWE from its establishment in 1980 until she resigned as the CEO in September 2009.

Shane Brandon McMahon (born January 15, 1970) is an American executive, currently serving as the Chief Executive Officer and Chairman of YOU On Demand. A former executive and professional wrestler for World Wrestling Entertainment (WWE), he is the son of WWE Chairman and CEO Vince McMahon and U.S. Senate candidate Linda McMahon. He is also the older brother of Stephanie McMahon and brother-in-law of professional wrestler Paul "Triple H" Levesque. He spent over 20 years in WWE, leaving in January 2010.

In WWE, he is a one-time European Champion and a one-time Hardcore Champion. McMahon is considered a fourth generation McMahon as he follows his great-grandfather, Jess McMahon, his grandfather Vincent J. McMahon, and his father Vincent K. McMahon.

McMahon began his on-screen career as a referee named Shane Stevens in 1990 and was the first performer to walk out to greet the audience at WrestleMania VI. Shane McMahon also refereed during the 1991 Royal Rumble match. He soon left behind the blue shirt and bow-tie and took on the role of a backstage official at WrestleMania VIII in an attempt to break up a brawl between Randy Savage and Ric Flair.