Frank mentions that Henry is 88. In real life, Len Cariou is 83.
Commissioner Reagan's chauffeur/bodyguard has been seen in several episodes over the years. In this episode, he was finally given a name, Detective Nuciforo. He is played by James Nuciforo, retired NYPD who has been the technical advisor for years. He also got his first line in this episode.
It is stated here that Frank's bodyguard for the first time is named and given a line. Many times on the past Frank has called him by name, "Jimmy" also he has had lines before. One comes to mind "Disrupted" he had several lines.
Part of this episode dealt with a unit called "The Broken Toys". This was the name of a unit that investigated crimes where witnesses were less than cooperative so the unit applied a little more pressure, maybe using techniques a little outside the box, so that they could close the case on really bad criminals that really deserved to go to prison.