Lawrence Dobkin

as Hur Ben Caleb

as Leo Bartha (uncredited)

as Colonel Gaston Bell

as Bank Customer with Hat (uncredited)

as Walter Kerr

as Dr. Middleton

as Narrator

as U.S. Intelligence Agency Official (uncredited)

as Linus Jerome Carradine

as Speaker Willis

as Al Carol

as Business Manager (uncredited)

as Gregory Dunkirk

as Billy-Joe Kane

as Haskell Sommers

as Col. Oliver Lacey

as Ambassador Kell

as General Oban

as Professor Julian Ryman

as Alexander Karsoff

as Doctor

as Masterson

as Buckov