John Cena is a real life professional wrestler whose been servicing for the WWE since 2002. Cena's first WWE appearance was an episode of Smackdown when he accepted a challenge from Kurt Angle. A year later, he went on to play a new gimmick named the Doctor of Thuganomics. With that gimmick, he would dress as a rapper and act like Vanilla Ice. A few years later, he started acting like a normal person with the Hustle, Loyalty, and Respect gimmick which he continues to use it to this day. He would eventually have some great feuds with other wrestlers such as C.M. Punk, Randy Orton, etc.