Guest star Leonard Nimoy is Terry Farrell's future father-in-law, as well as a fellow Star Trek alum.
Professor Emmett Fowler says the word "fascinating" twice over the course of this episode. The actor who played Prof. Fowler, Leonard Nimoy, played the iconic Mr. Spock in Star Trek (1966) and its subsequent movies, and popularized this same word as a trademark of the character over the course of the franchise to the point of being carried onward by future Spock actors such as Ethan Peck and Zachary Quinto.