The first man with the name of Dave Roberts to play for the San Diego Padres, this incarnation was a Pitcher who was an original Padre, arriving as an Expansion Draft Selection from the Pirates organization.

Roberts did not do much in San Diego's inaugural year, but he improved in 1970, going 8-14 over 181.2 Innings with a 3.81 ERA.  His 1971 Season proved to be Robert's best year in Baseball, when despite his losing 14-17 Record, he had a sweet ERA of 2.10, with a 1.109 WHIP.  Roberts was sixth in Cy Young voting, the only season he ever received Cy Young votes, and he was easily the best player on the team.  

Despite that strong campaign, San Diego traded him to Houston, but he never did equal 1971.

A Rule 5 Draft Pick from Pittsburgh, Bip Roberts had to stay with the Padres for the entirety of the 1986 Season, where he was used mostly out of the dugout as a Pinch Hitter, Pinch Runner, or defensive Replacement.  He returned to the Minors over the next two years, returning as a starter in 1989.

Roberts batted .301 in 117 Games in 1989 and had his best year with San Diego the year after, batting .309 with 172 Hits and 46 Stolen Bases.  After a down year, Roberts was traded to Cincinnati but would return as a Free Agent in 1994 for two more years before being traded again to Kansas City.

With the Padres, Roberts stole 148 Bases, had 673 Hits, and batted .298.

After two years with the Texas Rangers, Chris Young was traded to the San Diego Padres, the team he had his longest tenure.

Young threw over 170 Innings and struck out at least 160 batters in both of his first two seasons as a Padre, going to the All-Star Game in 2007 when he had a 9-8 Record with a 3.12 ERA.  Young dealt with injuries over the next three seasons and only appeared in 36 Games in this stretch.  He left San Diego for the Mets as a Free Agent in 2011.

With San Diego, Young went 33-25 with a 3.60 ERA and 489 Strikeouts.

If you were to put a list together of the unsung Relief Pitchers of the 1980s, Craig Lefferts would have to be on it.

A Chicago Cub as a rookie, Lefferts was sent to San Diego as part of a three-team trade before the 1984 Season.  Lefferts appeared in at least 60 Games over his first three years in San Diego, even leading the NL in Games Pitched (83) in 1986. The year after, he was trading during the season to San Francisco, but he returned home as a Free Agent for the 1990 Season, this time as a closer where he had back-to-back 23 Save years.  Lefferts was again traded during the season, this time in 1992, with Baltimore as his landing spot.

With the Giants, Lefferts had 64 Saves in 375 Games.