The unnamed character listed as "Cardiac Surgeon #2" in the credits is David Joyner, an actor who achieved worldwide fame playing none other than Barney the Dinosaur.
House listens to "Baba O'Riley" by The Who when Edward Vogler comes into his office to warn him about his behavior.
A mute man and his son with strep throat bear the surname of one of the show's producers, Gerrit van der Meer.
When Vogler leaves the office, House turns the iPod on shuffle and Hava Nagila, a Jewish folk song, starts playing.
13 minutes in, House mentions having seen every scary movie, mentioning 6 year old twins in front of an elevator of blood. This is a clear reference to The Shining, considered one of the scariest movies of all time.