Seth Gilliam's first appearance as OCCD Detective Daniels, his character appears in four episodes total. He also appeared in two episodes of Law & Order (1990) playing a African immigrant who's wife was murdered in one episode and a defense attorney in the other. He also played A.D.A. Terence Wright on Law & Order: Trial by Jury (2005).
William Hill (Bobby Grey) previously played the role of Jason Richards in episode 1.8, The Pardoner's Tale (2001).
Griffin Dunne (Seamus Flaherty) previously played the same role in episode 6.7, Country Crossover (2006), as well as the role of Henry Talbott in episode 1.5, Jones (2001).
Samuel Smith (Calvin Liscomb 'Apokalypto') also played the role of Cole Mulgrave in episode 9.4, Delicate (2010).
Daniel Stewart Sherman (Willie Faldo) previously played the role of Bob In episode 4.10, View from Up Here (2005).