The woman Frasier hits on at Niles' library benefit (who came dressed as Eve) is played by Kelsey Grammer's real-life wife (now, ex-wife) Camille Grammer.
Roz comes to the party dressed up as "O" from "The Story of O." This is a 1954 French erotic novel written by Anne Desclos.
The celebrity caller in this episode is Cindy Crawford. Crawford plays Roz's (Peri Gilpin) manicurist, whom Roz accidentally puts through to the show.
This episode marks the first appearance of the Dale Chihuly vase in Frasier's apartment.
The Chihuly glass bowl Frasier debuts in this episode (between the fireplace and the hallway to Frasier & Marty's bedrooms), is predominantly pea-green and rusty orange. These are the same predominant colors in Marty's Lay-Z-Boy chair. Almost looks like it was designed to match.