Dean Jagger

as Slade

as Dr. Land

as Prospector

as Whittier

as Colonel Baseman

as John Noble

as William L. Morgan

as Dr. Hubert Van Der Mal

as Mr. Fisher

as Sheriff Ned Logan

as John W. Rogers

as Dr. Adam Royston

as Tim Horn

as General Waverly

as Justus

as Sam Quade

as Rodion Pavlov