Characters played by George DiCenzo
Suramin
Characters played by Martin Milner
Karl Robinson
Characters played by Cameron Mitchell
Jeremiah Worth
Characters played by Eric Olson
Ernie Robinson
Characters played by John Vernon
Charles Forsythe
Characters played by Pat Delaney
Lottie Robinson
Characters played by Michael-James Wixted
Fred Robinson
Characters played by Cindy Fisher
Helga Wagner
Characters played by John Crawford
Nate Bidwell