Born: Jun 18, 1987
Houston's first draft choice of 2008 (eighth overall), the catcher from Stanford was called up in June of 2010 for his first big league action, hitting a single in his first at bat and belting an upper-deck homer in just his third game. However, he cooled off to a .205 average in his first season. Jason sat out the 2011 season with a knee injury but returned in 2012 to bat .257 in 66 games.
In 2013, Jason hit for an OPS of .835 and was the lone Astros' representative to the 2013 All-Star Game, but did not see action. He was the first All-Star for the Astros in the American League.
By the mid-2010s, Jason could be counted among the Astros' veterans when the Kiddie Korps of über-prospects like George Springer and Carlos Correa began to arrive. In 2015, Castro (1) and backup catcher Hank Conger (2) accounted for all the Astros' grand slams, quite an accomplishment on a team that led the AL in homers.