Christopher McCann has played four different characters throughout the course of Law & Order:
- Episode 1.15 The Torrents of Greed: Part 1 (1991) - Edgar Hoover
- Episode 12.17 Girl Most Likely (2002) - Drew Hamilton.
- Episode 16.12 Family Friend (2006) - Harvey Wellman.
- Episodes 19.1 Rumble (2008) - Judge Colin Gerard.
- Episode 20.6 Human Flesh Search Engine (2009) - Judge Colin Gerard.
Stuart Zagnit has played three different roles over the course of the series:
- Episode 7.2 I.D. (1996) - Harry Shapiro, DDS.
- Episode 10.5 Justice (1999) - Carson.
- Episode 12.17 Girl Most Likely (2002) - Jim Roker.