Malcolm Overby (1 episode, 2009)
Mr. Campbell (1 episode, 2009)
Senator Calhoun (1 episode, 2000)
Matt Branson / ... (2 episodes, 2002-2004)
Dr. Glassman (4 episodes, 1995)
Dr. Grant Linowitz (40 episodes, 1989-1991)
Andrew Elliot / ... (2 episodes, 1991-1995)
Dr. Andy Pagano / ... (10 episodes, 1985-1986)
Cody Sullivan (unknown episodes, 1981)