The actor playing assassin Elias Marcos was credited on screen as Wray Nerely. However, this actor is actually Alan Tudyk, who has a cult following from having been a regular on the short-lived science-fiction series Firefly (2002) and who has had roles in more mainstream blockbusters such as I, Robot (2004) and Frozen (2013). The pseudonym he used for this guest role is the same as the name of his character in Con Man (2015), in which he plays a little-known actor with a minor cult following from having appeared on a Firefly-like science-fiction TV show. "Wray" is also Tudyk's real middle name. Tudyk went on to guest star next to Timothy Olyphant on Santa Clarita Diet (2017).
Art Mullen comments on Picker's prominent nose and asks him if it's due to his Greek heritage, to which Picker replies his nose came from a Beverly Hills plastic surgeon. John Kapelos, who plays Picker, is actually of Greek ancestry and speaks fluent Greek.
AUSA Vasquez (Rick Gomez) tells Picker (John Kapelos) that having Marcos (Alan Tudyk) loose in the world is a disruption in the force. This is yet another reference to the Star Wars universe.