Susan Ross, despite having died at the end of Season 7, makes a return appearance in this episode. She appears during a brief flashback to "two years earlier", prior to her death when she and George were engaged. She also provided the phrase George claims he owns: "You can stuff your sorries in a sack, mister." In "Notes About Nothing", this flashback supposedly took place between "The Secret Code" and "The Pool Guy" in terms of the timeline. Also at the time revealed by Peter Mehlman in the "Audio Commentary" and Heidi Swedberg in "Inside Look" that she already had her head shaved for another episode in a different show so she has to wear a wig for this appearance.