The real name of That Guy (according to the writers) is Steve Castle.
In one scene Leela says that something "Toads the Wet Sprocket". Toad the Wet Sprocket was a band in the 1990s. The band themselves got the name from a Monty Python sketch.
That Guy and Fry get their new suits at Giorgio Amonster.
Inside the Bot Mitzvah, there is a banner in Hebrew over the dance floor that says "You're wasting your time."
This episode marks the only appearance of the oft mentioned Ape Fights.