Denise Richards was pregnant with Sami Sheen during the filming of this episode. Denise Richards would later appear in Yes, Monsignor (2004) as an ex-girlfriend that had a baby. The baby was played by Sam Sheen.
Charlie (Charlie Sheen) tells Alan that Lisa (Denise Richards) is the only person that he may marry. Sheen was married to Richards as of this episode's release year.