Known for being one of the more prolific Pinch Hitters of all-time, Denny Walling was a Houston Astro for 13 of his 18 seasons and was predominantly used against right handed pitchers.  Walling was especially effective with his bat in the cavernous Astrodome and the fact that he was capable of playing multiple defensive positions made him an asset for Houston.  He would have 726 Hits for the club.

Twice an All-Star as an Astro, Dave Smith was Houston’s closer for years, saving 20 games in six consecutive seasons.   He would record six seasons with a WHIP under 1.100 and would finish on the top five in Saves three times.

In 2015, Dallas Keuchel won the Cy Young Award, cementing himself as a certified ace in Major League Baseball who shot up this list astronomically from that 2015 campaign.  Keuchel did not repeat that season’s accomplishments with the Astros, but he was an All-Star for the second time in 2017, where he had a 14-5 record and a 2.90 ERA.  His run with the Astros ended when he signed with the Atlants Braves as a Free Agent.  With Houston, Keuchel would have a 76-63 record with 945 Strikeouts.

Known for his very keen batting eye (he is one of the few players in MLB history to record more Walks than Hits in a full season), Morgan Ensberg had a breakout season in 2005, where he was an All-Star, A Silver Slugger and finished 4th in MVP voting.  He never replicated that campaign, however, but did make his mark in Houston with 551 Hits with 105 Home Runs.