Although Perrey Reeves is a series regular as "Mrs. Ari," her character's real name was never before revealed. She was always referred to as "baby" by Ari and most other character's either refer to her as "Ari's wife" or "Mrs. Ari." However in the third to last show in the series it is revealed that Mrs. Ari's name is Melissa, said by her new boyfriend Bobby Flay.
This episode's title is "The Big Bang." Johnny Galecki (who guest stars in this episode) is the star of the TV show The Big Bang Theory (2007).
Turtle shows the guys a picture of the back of Leonardo DiCaprio's head, sent to him by someone named Lukas. He is referring to actor and longtime member of Dicaprio's posse, Lukas Haas. Haas also made guest appearances in Unlike a Virgin (2008) and Fire Sale (2008) where he plays a writer named L.B.
David Spade (who guest stars in this episode), and Jeremy Piven (Ari Gold) co-starred in PCU (1994) together.