Most people think that the United States Secret Service's (USSS) job is just to protect current and former presidents and other high ranking government officials and diplomats; this is true but that is not the only area under the jurisdiction of the Secret Service. The other primary mission of the USSS is to investigate and protect the monetary and financial systems of the United States, including counterfeit U.S. currency, bank & financial institution fraud, illicit financing operations, cybercrime, identity theft, intellectual property crimes, and any other violations that may affect the United States economy and financial systems. The USSS mainly focuses on large scale criminal organizations who's criminal activities have a high dollar value and impact on the US economy, including organized illegal gambling clubs.
Fin's line about "gin joints" is a reference to the film Casablanca (1942). That film's gin joint, Rick's Café Américain, also features illegal gambling in a back room.
Don Sparks has played four different characters over the course of the series:
- Episode 7.17 Class (2006) - Glen
- Episode 4.20 Dominance (2003) - Renny Nix
- Episode 3.18 Guilt (2002) - Dr. Phil Mitrano
- Episode 2.4 Legacy (2000) - Doorman
Will Estes plays a student at Hudson University. In Blue Bloods (2010), his character Jamie Reagan is an alumnus of Hudson University.
Will Estes was in Reunion with Mathew St. Patrick. Diane Neal and Joey Slotnick were in episodes of Blue Bloods.