There is a scene where Vince passes Mark Wahlberg and his "entourage." Because the series is loosely based on Wahlberg's early years in Hollywood, this is significant because the people walking with Wahlberg in the scene are the real life E and Johnny (Alves) Drama. Alves is in a light blue track suit and E is dressed in business casual attire.
In the original draft of the script, the boys had a live-in chef named Cal. But it appears as if this character (and most of his lines) were merged with Drama by the time shooting was under way.
Kevin Dillon's character Johnny Drama says to have played a part in Blue, albeit "only" Pacific Blue (1996), not NYPD Blue (1993) (both cop series), while in fact Kevin actually played Officer Neil Baker in three episodes of NYPD Blue.
Jerry Ferrara also had a guest appearance in one episode of NYPD Blue in season 11.
Jerry Ferrara also had a guest appearance in one episode of NYPD Blue in season 11.
In a draft script, it is stated that Turtle's real name is Mike Quinn.
In the original draft of the script, Vince's publicist's name was not Shauna but Sarah Davis, and was described as: "Smartly dressed in a pant suit, Sarah embodies mature elegance. By comparison the guys seem like high-schoolers."
Ali Larter: appears as herself, who seems to be obsessed with Vincent Chase (Grenier). She played a similar character, going after Grenier's character (first name Chase) in the film, Drive Me Crazy (1999).