Veteran character actor Charles Hallahan was originally scheduled to play Bilby but, unfortunately, was stricken with a fatal heart attack just a few days before filming was set to begin. Actor Nick Tate, who had also originally auditioned for the role but lost out to Hallahan, stepped in at the last minute and agreed to fill the role "in memory" of the fallen actor.
A new transporter effect was designed for the episode for the scene where Raimus and Gelnon transport in.
Gelnon (Leland Crooke) was the Vorta who commanded the Jem'Hadar team who commandeered the USS Defiant in the previous episode One Little Ship (1998).
Farius Prime, which was mentioned in The Maquis, Part I (1994) as a side note, played a major part in this story, and was mentioned once again in Prodigal Daughter (1999), which continues the arc of O'Brien's involvement with Bilby.