Ted Shackelford

as Mark Gage

as Dr. Ben Logan

as Delbert Ramsey

as Eddie

as Commissioner Donald Hallows

as Jacob 'Jake' Hansen

as Brian Klosky

as Boone

as Paul Royce

as Captain O'Kelly

as Les Larson

as Blain

as Gary Ewing

as Eric Genther

as Emmett Parker

as Dr. Lawrence Stiles

as Gary Ewing

as Richard Anderson

as Joel Redding

as Barry Simmons

as Garret / Jason Cook

as Ted Hillford

as High Secretary Paul Kohler