Detective Rick Crowell, played by Andrew Dolan, previously appeared in episode 6.13, Dark Money (2015).
Charlie Pollock reprises his role of Detective Gifford in The Good Wife spin-off, The Good Fight (2017).
Jerry Adler (Howard Lyman) & Michael J. Fox (Louis Canning) also worked together on Rescue Me (2004), as Sidney Feinberg & Dwight respectively.
Chris Noth (Peter Florrick) & Dallas Roberts (Owen Cavanaugh) also worked together on episode 5.11, Guardian (1995), of Law & Order (1990) as Mike Logan & Matthew Blanchard respectively.