Jon Singleton appeared in the most games of anyone on this list as he played 11 games for the Brewers back in June. Singleton was formerly a top prospect for the Astros way back when and he finally got back to the majors for the first time since 2015 with Milwaukee. The Brewers needed some offense and Singleton had played well enough at Triple-A, so it was worth a shot.
Sadly, things did not work as Singleton slashed .103/.188/.138 in his 32 plate appearances with the team. He would ultimately leave the organization altogether in June and rejoin the Astros where he has been subpar (although better than his time with Milwaukee) in 21 games for Houston.
Next up is Jahmai Jones who has 7 games worth of cameo appearances with the Brewers in 2023. Jones actually had two different short stints with Milwaukee in July after the Brewers signed him to a deal once he opted out of a minor league contract with the Dodgers. Jones' first stint was to fill the roster spot left by Brian Anderson when he went out on paternity leave and came back once Anderson hurt his back not long after that.
Unfortunately, Jones' time with the Brewers wasn't all that memorable as he put up a .200/273/.300 line in 11 plate appearances. Certainly not the worst showing for a guy that was just supposed to be a warm body, but also not good enough to stick around. His numbers at Triple-A in 2023 have been decidedly better as he has put up an .889 OPS this season.
This is a funny one as Abraham Toro has played nine games with the Brewers across three different stints with the team this season. Toro is kind of the perfect guy to have in an organization as he can play a bunch of different positions, is a switch hitter, and is generally a pretty highly regarded hitter. Just this season, Toro has played third, first, and DH for the Brewers and has 17 games at second base at Triple-A this season as well.
It is actually surprising that the Brewers couldn't find a way to get Toro some more big league playing time because he was awesome when he was up and pretty good in Triple-A. In 21 plate appearances with the Brewers in 2023, Toro posted a 1.302 OPS with a couple homers and nine RBI in that short span. Hopefully he gets another chance.