Guest Stars Ian Tracey as Mr. Tarquin Teryl Rothery as Janet Preston Robert Foxworth as President Charles Halsey Lawrence Dane as General Covington Diana Scarwid as Elizabeth Halsey Dale Wilson as NORAD General Co Starring Jason Gray-Stanford as Airman David Bloom as Expert Scott McNeil as Astronaut Bruce Harwood as Dr. Norris Claire Riley as News Anchor Ewan Sudsy Clark as Congressman