Claude Alexander (2 episodes, 2006)
German General (2 episodes, 2004)
DCI Collingwood (unknown episodes)
The One (3 episodes, 2000)
Ben Duffield (2 episodes, 2000)
Dr. Manfred Xang (1 episode, 1996)
Unferth (1 episode, 1995)
Knight Two (1 episode, 1994)
Collin Hemmings 1 episode, 1989
Erich von Leer / ... (4 episodes, 1986-1991)
Dr. John Sullivan / ... (3 episodes, 1993-1995)
Hamilton Stone (3 episodes, 1988-1989)
Capt. Junot (3 episodes, 1974)
Ogden Vaughn (unknown episodes, 1986)