David Thornton originally starred as defense attorney Lionel Granger on Law & Order (1990), then crossed over, going on to star in nine episodes of Law and Order SVU.
Larry Cahn has played three different characters over the course of the series:
- Episode 5.17 Mean (2004) - Mr. Summerbee
- Episode 4.23 Grief (2003) - Professor Schreiber
- Episode 2.18 Manhunt (2001) - Dom Boquist
It is revealed that Casey Novak's birthstone is sapphire, meaning she has a birthday sometime in September.
Anthony Mangano has played three different characters over the course of the series:
- Episode 17.1 Devil's Dissections (2015) - Sergeant
- Episode 5.17 Mean (2004) - Security Officer Kubiak
- Episode 1.11 Bad Blood (2000) - Mancini