Mario Lopez, Jr. is an American television host and actor. He is of Mexican, Latino and Hispanic descent. Lopez has appeared on several television series, in films, and on Broadway. He is best known for his portrayal of A.C. Slater on Saved By The Bell, who he also portrayed as a regular on Saved by the Bell: The College Years. He has appeared in numerous projects since, including the third season of Dancing with the Stars and as host for the syndicated entertainment news magazine show Extra. He has also hosted America's Best Dance Crew for MTV. In 2012, he co-hosted the American version of The X Factor with Khloé Kardashian until her departure in December, and was sole host for the 2013 season.