Goris, 21, hit .333 (78-for-234) with 14 doubles, four triples, 13 home runs, 51 RBI and 41 runs scored in 58 games played between the Royals Rookie-Level affiliate and Single-A Idaho this past season. A native of the Dominican Republic, he was originally signed by the Pittsburgh Pirates as a non-drafted free agent in May of 2008 and acquired by the Royals in a three-player trade with the Pirates in December of 2011. Over parts of five minor league seasons in the Pirates (2008-11) and Royals (2012) organizations, he has hit .309 (323-for-1045) with 51 doubles, 16 triples, 24 home runs, 168 RBI and 178 runs scored in 277 games played.
Castaneda, 28, went 2-4 with a 5.71 ERA (33 ER/52.0 IP) and 52 strikeouts against 15 walks over 51 relief appearances in the Mexican League this past season. The Mexico native was originally signed by the Royals as a non-drafted free agent in November of 2008.
Freiman, 25, hit .298 (154-for-516) with 31 doubles, one triple, 24 home runs, 105 RBI and 80 runs scored in 137 games played for Double-A San Antonio last season, leading the Texas League in RBI. He was originally signed by the Padres as an eighth-round selection out of the 2009 First-Year Player Draft. Over parts of four minor league seasons (2009-12) in the Padres organization, he hit .294 (551-for-1876) with 131 doubles, five triples, 71 home runs, 368 RBI and 280 runs scored in 483 games played.
Carroll, 26, hit .263 (98-for-372) with 15 doubles, six triples, eight home runs, 56 RBI and 46 runs scored in 112 games for Triple-A Tucson this past season. The outfielder was originally signed by the Padres as a third-round selection out of the 2008 First-Year Player Draft. Over parts of five minor league seasons (2008-12) in the Padres organization, he hit .274 (550-for-2010) with 117 doubles, 27 triples, 49 home runs, 325 RBI and 298 runs scored in 564 games played.