Erin Dilly (Joyce Foley) previously played the role of Emily in episode 11.12, Teenage Wasteland (2001).
David Fonteno has portrayed seven different characters over the course of the series:
- Episode 1.17 Mushrooms (1991) - Coach
- Episode 3.16 Jurisdiction (1993) - Gavin McCrea
- Episode 4.19 Sanctuary (1994) - Jimmy Graves
- Episode 6.4 Jeopardy (1995) - CSU Tech Murrau
- Episode 7.18 Mad Dog (1997) - Munro
- Episode 10.24 Vaya Con Dios (2000) - John Groban
- Episode 11.10 Whose Monkey Is It Anyway? (2001) - Judge Derek Hafner
- Episode 18.12 Submission (2008) - Judge Derek Hafner
- Episode 19.20 Exchange (2009) - Judge Derek Hafner