Guest Stars Jason Wingreen as O.B.I.T. Operator Robert Benevides as Capt. James Harrison Peter Breck as Senator Jeremiah Orville Harry Townes as Dr. Clifford Scott Jeff Corey as Mr. Byron Lomax C. Lindsay Workman as Dr. Anderson Alan Baxter as Col. Grover Konstantin Shayne as Dr. Philip Fletcher Joanne Gilbert as Barbara Scott Sam Reece as Clyde Wyatt Uncredited William Douglas as The Helosian Steve Carruthers as Hearing Member