David Batuhan (1 episode, 2013)
Dr. Green (1 episode, 2005)
Louis Dalton (2 episodes, 2010)
Bill Fearing (13 episodes, 2000-2001)
Porcelain Paul 1 episode, 2000
Lorcan Barnes / ... (2 episodes, 1997-2003)
Nigel Sheffield (3 episodes, 1996-1998)
Dr. Greg Hawking (1 episode, 2016)