José Gregorio Castillo Tovar is a Venezuelan professional baseball pitcher in the Arizona Diamondbacks organization. He has previously played in Major League Baseball (MLB) for the San Diego Padres.

René Rivera is a Puerto Rican former professional baseball catcher. He played in Major League Baseball (MLB) for the Seattle Mariners, Minnesota Twins, San Diego Padres, Tampa Bay Rays, New York Mets, Chicago Cubs, Los Angeles Angels, Atlanta Braves, Cleveland Indians, and Washington Nationals.