Ken Caminiti would become a National League MVP with the San Diego Padres but it was a member of the Houston Astros where he would make the first of his three All Star Games.  Caminiti was not putting up his best career power numbers in Houston (though still had 103), but he was actually at his best defensively playing for the Astros.

The Houston Astros would become one of the elite teams in Major League Baseball in the 2010s and the biggest reason was because of the small in stature yet hug in talent, Jose Altuve.

Altuve would become an All-Star in 2012 and secured himself as a bona fide hitting machine.  After an "off-season" in 2013, he was an All-Star again in 2014 and went on an incredible hitting tear where he not only exceeded the 200 Hit mark but would lead the American League in that statistic.  Altuve would win the Batting Title three times in that time frame and more importantly in 2017 he would win the MVP and lead the Astros to the World Series Title.  

He slumped after 2017, though was still a very good player, but he had a renaisance in 2022, where not only was he an All-Star, he was fifth in MVP voting, added a sixth Silver Slugger, and was named to the All-MLB 1 Team.  More importantly he was the heart of the squad that on the World Series, the second for both the Astros and Altuve.

Altuve is still with Houston a of this writing and could become the greatest Astro ever if he continues at this pace.

The Venezuelan Outfielder, Richard Hidalgo, had his best years in Major League Baseball playing for the Houston Astros.  Hidalgo had a major season in 2000 when he smacked 46 Home Runs with a Slash Line of .314/.391/.636, but knee injuries prevented him from getting anywhere near that again.

An excellent selection from the Expansion Draft, Turk Farrell was converted to a Starting Pitcher and was an All-Star in his debut season for Houston.   Farrell would make two more All-Star appearances, and while he has a losing record as an Astro, it was not like he had a lot of help around him.