Sean Nelson has played three different roles over the course of the series:
- Episode 20.7 Boy Gone Astray (2009) - Van Buren's Son
- Episode 20.3 Great Satan (2009) - Van Buren's Son
- Episode 15.13 Ain't No Love (2005) - Steven 'Four Strike' Foreman
- Episode 4.19 Sanctuary (1994) - Damon Fox
Peter McRobbie plays Judge Walter Bradley in this, and 13 other episodes. Previously, he played the part of four other characters:
- Episode 11.9 Hubris (2001) onwards - Judge Walter Bradley
- Episode 8.23 Tabloid (1998) - Dr. Thomas Neustadt
- Episode 5.11 Guardian (1995) - Herbert Fowler
- Episode 3.9 Point of View (1992) - John Ennis
- Episode 1.21 Sonata for Solo Organ (1991) - Manager
Susan Pellegrino (Patricia Wilshere) previously played the role of Judge Jeanette Donaldson in episode 15.17, License to Kill (2005).