Kevin Bass joined the Houston organization in late 1982 via a trade with the Milwaukee Brewers, a move that sent veteran Don Sutton to the American League in exchange for the young, switch-hitting outfielder. After spending his first few seasons in South Texas as a developing part-time player, he broke through as a full-time starter in 1985 and quickly became the definitive versatile threat of the "Orange Force" era.

Between 1985 and 1987, he recorded three consecutive seasons with at least 140 hits, 15 home runs, and 15 stolen bases.  In the ’86 campaign, he had a career-high .311 batting average and a .364 on-base percentage. He showed the organization that he was a foundational star by earning his first All-Star selection and finishing seventh in the NL MVP voting.

His first departure following the 1989 season was a matter of seeking stability; the Astros refused to include a no-trade clause in their offer, leading Bass to sign a three-year deal with his hometown San Francisco Giants. However, after stints in the Bay Area and with the Mets, he realized that the Astrodome was the environment that best fit his game. He returned to Houston in early 1993.  Even in a reserve role during this second run, he was efficient, batting .310 during the strike-shortened 1994 season.

He played one more MLB season with the Baltimore Orioles, and as an Astro, compiled 990 hits, a .278 batting average, and 102 stolen bases.

Dickie Thon joined the Houston organization in late 1980 via a trade with the California Angels, a move that brought the young, high-ceiling infielder to South Texas in exchange for pitcher Ken Forsch. After a transitional year in 1981, he seized the starting shortstop job and quickly evolved into one of the most dynamic all-around players in the National League.

The climb toward Thon’s peak in 1983 was a study in rapid, high-frequency impact. That summer, he demonstrated a specialized ability to dominate both sides of the ball, emerging as the premier shortstop in the senior circuit. He surged to a career-high .286 batting average with 20 home runs and 79 RBIs, power numbers that were virtually unheard of for his position in the early eighties.  He led the National League in bWAR for position players (7.4) and secured both an All-Star selection and a Silver Slugger Award. This period of explosive growth served as the essential lead-in to a seventh-place finish in the NL MVP voting.  It looked like this was the rocket to dominance in Space City, but that was not meant to be.

During the first week of the 1984 campaign. In an early-season game against the Mets, he was struck in the face by a Mike Torrez fastball, an injury that resulted in a fractured orbital bone and permanent damage to his peripheral vision. He demonstrated a focused intensity by attempting several comebacks, showing the organization a legendary level of grit as he fought to regain his timing at the plate. However, he possessed a rare, vulnerable quality following the incident; despite a courageous return, the depth perception required to hit elite pitching was never fully restored. He remained a model of defensive efficiency, recording a 6.7 defensive bWAR during his Houston tenure, but his offensive ceiling had been cruelly lowered.

Between 1985 and 1987, Thon was a statistical standout for his glove work, providing the steady-state veteran-like poise needed to stabilize the infield during the 1986 division-title run, but in 1988, he was traded to San Diego.  As an Astro, Thon compiled 492 hits, a .270 batting average.