Michael Hobbs has played three different roles over the course of the series:
- Episode 4.19 Appearances (2003) - Mr. Roumel
- Episode 2.10 Consent (2001) - Joe Templeton Sr.
- Episode 1.6 Sophomore Jinx (1999) - Mr. Gallagher
Pilar Witherspoon has played three different roles over the course of the series:
- Episode 17.8 Melancholy Pursuit (2015) - Helen Ryan
- Episode 5.18 Careless (2004) - Julia Hynton
- Episode 5.2 Manic (2003) - Julia Hynton
- Episode 2.10 Consent (2001) - Officer Owens