Dr. Craig (6 episodes, 2005-2007)
Richard Armus (3 episodes, 2002-2003)
Attorney Brad Lewis (14 episodes, 2001-2011)
Energy Secretary Gerald Deloit (1 episode, 2004)
Arnold Halliwell (1 episode, 1998)
Robert Goodwin (2 episodes, 1996-1997)
Attorney General Stuart Roberts / ... (4 episodes, 1989-1991)
Syd Dombrower (2 episodes, 1988-1989)
Publisher 1 episode, 2017
Francis Buckley / ... 2 episodes, 2019-2021
Dr. Miller (1 episode, 2015)