*Alex Rodriquez, a baseball player for the New York Yankees. He is from the Dominican Republic. He is the youngest player ever to hit 500 home runs and is the all-time leader in home runs by a player of Hispanic descent. He is in a Seattle Mariners Uniform and played with a couple of teams before the Yankees.
*Sammy Sosa played with the Chicago Cubs. He is from the Dominican Republic. He is in a Chicago Cub's uniform, but played with 4 different teams during his career. He retired from baseball in 2007.
*Anderson "Spider" Silva is a Brazilian mixed martial artist. He is the current UFC Middleweight Champion and the promotion's longest reigning champion. He was never created as a 12" doll. The doll was 6" figure from Round 5 - Ultimate Fighting Championship Toys series. The head was almost the size of a 12" doll head so I put him on a 12" body.
* Info from Wikipedia