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