The Betty-ish woman in Dr. Farkas' dental office was played by Angélica Vale, star of "La Fea más Bella," a Mexican remake of the same telenovela that inspired "Ugly Betty."
Earlier in the season, Henry invited Betty to see Wicked with him, after she was singing "Popular" and mentioning how much she wants to go, and he even buys her a sweatshirt. Kristin Chenoweth, who originated the role of Glinda, is one of the dental hygienists in this episode.