When James Woods appeared as a guest in the hit US show Entourage, he says the words "5 seconds" and uses a hand gesture when referring to getting his tickets back from Turtle...Woods says this same sentence and uses the same hand gesture on 2 occasions in his new show, Shark.
Stark mentions Atlantic City to Harry Russo at the bar. William Forsythe would go on to play a role in Boardwalk Empire (2010), which is primarily set in Atlantic City.
During an exterior shot of a hotel right before a scene where Casey and Raina question a bartender, a bus with an ad for Studio 60 on the Sunset Strip (2006) passes in front of the camera. CBS had previously lost a bidding war to NBC for the rights to Studio 60 in October 2005.