Nascimento: 12 de Julho de 1975 (43 years)
In an autobiography on his website. Greene describes his childhood as troubled. At age six, he became a ward of the state; he was moved through different foster homes for most of his adolescent life. His seventh-grade English teacher encouraged him to take up bodybuilding as a "behavior modification tool." After some initial successes in winning teen awards, Greene started working out at 5th Avenue Gym in Brooklyn, which would become his "home and institute for competitive education."
Greene then set his eyes on becoming a professional bodybuilder. He competed in the National Physique Committee, with the goal to move into the International Federation of BodyBuilders. He perceives his success in the NPC as mixed. Although he won the 1999 Team Universe, he was disappointed and took a five-year break from competitions, before re-emerging in the 2004 Team Universe contest, which he won again. This victory qualified him for a career as a pro bodybuilder. Kai Greene is also known as "The Predator", for his unique hair that reminds many of the predator, from the movie of the same name. He is famous for his long, grueling and intense training sessions.