Bruno Leopoldo Francesco Sammartino (born October 6, 1935) is an Italian-American former professional wrestler, best known for being the longest-running champion of the World Wide Wrestling Federation (WWWF), holding the title across two reigns for over 11 years in total, as well as the longest single WWE Championship reign in professional wrestling history.

Sammartino's wrestling style was more mat-oriented which was typical of wrestlers from his era. His brawling, power moves, and personal charisma helped him become the most popular American wrestler in the 1960s and 1970s.

Born in Pizzoferrato, Abruzzo, Italy on October 6, 1935, Sammartino was the youngest of seven brothers and sisters. Four older siblings died during his time in Italy. During his childhood, Sammartino's family hid from German soldiers in a mountain called Valla Rocca, during the latter stages of World War II. During this time, Sammartino's mother, Emilia, would sneak into their German-occupied town for food and supplies. She once was captured and another time shot in the shoulder during such trips. Eventually, Sammartino caught rheumatic fever but was nursed back to health by his mother with hot blankets and leeches. In 1950, he moved to the United States and settled in Pittsburgh, Pennsylvania, where his father had already lived for several years.

Richard Morgan Fliehr (born February 25, 1949) is an American professional wrestler, better known by his ring name Ric Flair. Also known as "The Nature Boy", Flair is considered to be one of the greatest professional wrestlers of all time with a professional career that spans 40 years. He is currently working for Total Nonstop Action Wrestling (TNA), and is noted for his lengthy and highly decorated tenures with the National Wrestling Alliance (NWA), World Championship Wrestling (WCW), and the World Wrestling Federation/Entertainment (now known as WWE). Flair is officially recognized by WWE, TNA and PWI as a 16-time World Heavyweight Champion (seven-time NWA Champion, seven-time WCW Champion and two-time WWF Champion) although his actual tally of World Championship reigns varies by source—Flair considers himself a 21-time world champion.

In World Championship Wrestling (WCW), he also had two stints as a booker—in 1989–1990 and 1994. Flair also became the first and only man to have won the WWF Championship in a Royal Rumble match, when he accomplished this in the 1992 edition of the event. In 2012, Flair became the first ever double inductee in the WWE Hall of Fame, first inducted in 2008 for his individual career, and for a second time in 2012 as a member of the Four Horsemen. He is also an NWA Hall of Famer (class of 2008). Flair's hair styles and mannerisms are based on those of Buddy Rogers, who previously and famously used the "Nature Boy" gimmick in the 1950s and '60s. Coincidentally, Flair also followed Rogers in becoming the second man to win both the WWF and the NWA World Heavyweight Championships.

Aloysius Martin "Lou" Thesz (Born Lajos Tiza April 24, 1916 - April 28, 2002) was an American professional wrestler and 6-timeworld champion, most notably holding the NWA World Heavyweight Championship three times. Combined, he held the NWA Championship for 10 years, three months and nine days (3,749 days total), longer than anyone else in history. Among his many accomplishments, he is credited with inventing a number of professional wrestling techniques such as the belly to back waistlock suplex (later known as the German suplex due to its association with Karl Gotch), the Lou Thesz press, STF and the original powerbomb.

He is generally considered to be among the greatest professional wrestlers of the 20th century.

Billy Robinson (born September 18, 1939) is a British professional wrestler and catch wrestling instructor. Robinson was well known in Japan where he has trained mixed martial arts fighters in catch wrestling. Robinson is one of the few wrestlers who was successful in several continents (Europe, North America, Asia and Oceania), winning titles in promotions nearly everywhere he wrestled.

Robinson began his amateur wrestling career in England. He was the British National Wrestling Champion in 1957, and in 1958 he was the European Open Wrestling Champion in the light heavyweight class, beating an Olympic bronze medal winner in the finals.

Billy Robinson also attended the fabled "Snake Pit" started by legendary trainer Billy Riley. The Snake Pit was one of the most respected catch wrestling training schools in all of the world. Legends such as Karl Gotch had trained in catch wrestling in the Snake Pit with Riley.

Robinson had to survive bare minimum amenities (luxuries such as a toilet were not provided at the Snake Pit), a very rough training environment (Riley was very impatient with those who showed even the slightest bit of weakness on the mat) and rigorous conditioning. Robinson stayed at the Snake Pit for eight years.

Paul Michael Levesque (born July 27, 1969) is an American professional wrestler, wrestling executive, and actor better known by his ring name Triple H, an abbreviation of the ring name, Hunter Hearst Helmsley. Currently, Levesque works in the front office of WWE as the Executive Vice President of Talent and Live Events, and as Triple H appears on television as the (storyline) Chief Operating Officer, and part-time wrestler.

Levesque began his wrestling career in the International Wrestling Federation as Terra Ryzing before joining World Championship Wrestling (WCW) in 1994. After briefly using the Ryzing name, he changed his character to Jean-Paul Lévesque, a French-Canadian aristocrat which would be similar to his character Hunter Hearst Helmsley, that he used in his early years with the World Wrestling Federation (WWF) from 1995 onward. He later abbreviated his name to Triple H and adopted an alternative image in the D-Generation X (DX) stable. After the dissolution of DX, Triple H was pushed as a main event wrestler, winning several singles championships. As part of a storyline Triple H married Stephanie McMahon, who later became his real-life spouse. In 2003, Triple H formed another stable known as Evolution, and reformed DX with Shawn Michaels in 2006 and 2009. He is heavily involved in the writing process of WWE programming, and holds complete creative control over his television character's storylines, win/loss record, and championship reigns.