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