Murderball Ref (1 episode, 2007)
Hank Latrell (1 episode, 2006)
Dominick (1 episode, 2008)
Mitch Sassen (63 episodes, 2003-2008)
Barry 'The Bear' Caldwell (4 episodes, 2003-2004)
Jonathan Ashworth (7 episodes, 2001-2002)
Dr. Matthew 'Matt' Harmon
Frank Wallace / ... (2 episodes, 1996)
Dr. Matt Harmon (4 episodes, 1997-1999)
Dr. Matt Harmon (credit only)