This episode features 9 former actors from The Sopranos (1999), as well as most of the actors cast in this episode either appear in Law & Order (1990) or The Good Wife (2009).
According to the bank statement, the events in this episode start on April 3. The episode ends on April 5, the same day as the original airdate.
In the scene with the young Elias (while working for his father Moretti), Moretti is shown sitting at a round table covered with a white tablecloth, in a dark suit and tie, toward the back center of a restaurant with wooden chairs. This is a recreation of the scene in The Godfather where Michael shoots Sollozzo and McCluskey. Only the shape of the wooden chairs is different. Round tables down the center. Square tables at the walls. The young Carl Elias has a strong resemblance to the young Michael Corleone.
Elias says his SSN is 306-00-3894. The first group, "306-," is from Indiana; the second group, "00-," does not exist.
Carter's son goes to Marbury High School in Brooklyn. Although there is no school with this name in Brooklyn, the map on Finch's computer shows the location of another school, St. Cecilia School, located at the corner of Richardson St. and Monitor St. When Carter drops Taylor off at his school in the beginning of the episode and later when Scarface kidnaps Taylor the actual building can be seen.