The episode features several guest appearances; horse race caller Trevor Denman stars as himself, commentating the races in the episode, and voice artist Jim Cummings provides the animal sounds made by Duncan. Randy Bachman and Fred Turner appear as themselves as their rock band Bachman–Turner Overdrive performs at the state fair. "Saddlesore Galactica" was written by Tim Long and directed by Lance Kramer. A number of meta-references are included in the episode, such as the character Comic Book Guy telling the Simpsons that they have owned a horse before in the episode "Lisa's Pony".