#6 Mark Henry
Mark Henry, much like Ken Patera, is a two-time Olympian. He competed at the 1992 and 1996 Olympic games in weightlifting competitions but failed to earn a medal.
Henry did manage to do much better at the Pan American games, where he won bronze, silver, and gold medals in weight lifting. He also has a legit claim to the world's strongest man title, having won the 2002 Arnold Classic.
Henry turned his attention to the WWE, and initially debuted as a face, but then in his first match, he turned heel and joined the Nation of Domination. He would become the babyface Sexual Chocolate before heading to Ohio Valley Wrestling to bone up on his skills.
Once Henry returned, the Sexual Chocolate was gone. He went on the infamous "Hall of Pain" run and even captured the WWE World title.
Henry still works for WWE under a legends contract and a backstage producer. He was recently inducted into the WWE Hall of Fame as a part of the class of 2018.