Chris Jackson stars as the husband of Renée Elise Goldsberry's character in a sub-plot. Both are famous for being part of the original Broadway cast of "Hamilton," and the movie Hamilton (2020), where they starred as George Washington and Angelica Schuyler, respectively.
José Ramón Rosario reprises his role of Harris the bailiff in The Good Wife spin-off, The Good Fight (2017).
Steven Pasquale (Johnny Elfman) & Don Puglisi (Guitarist) also worked together on episode 4.11, Cycle (2007), of Rescue Me (2004) as Sean Garrity & the diner chef respectively.
Julianna Margulies (Alicia Florrick) & José Ramón Rosario (Harris the bailiff) previously worked together on episode 1.4, Hit and Run (1994), of ER (1994) as Carol Hathaway & the driver respectively.