Well, there's brave Marko with his friend and employer, Prince Erik Greystone (played by Jeff Conaway). Looks like yet another life-threatening assignment from King Edwin Baaldorf (played by the late Thomas Hill).

Although the "life" of this particular vassal was limited to approximately eight episodes, actor Walter Olkewicz has appeared in many other TV shows and films as well as stage productions.

Here is a listing of a few of them.
(Please note that any role that has a link will open in a new window.)

1941
The A-Team
Batman: The Animated Series
The Blue and The Gray
Cheers
Chicago Hope
The Client
Designing Women
Dharma & Greg
G vs E
Grace Under Fire
Married With Children
Night Court
Riptide
Taxi
Twin Peaks
Wizards and Warriors

Internet Movie Database
(you'll need to input Walter's name in the search box)