Jean Byron

 Invisible Invaders (1959) starring John Agar, John Carradine, Jean Byron, Philip Tonge, Robert Hutton

When stock footage attacks! Actually,  Invisible Invaders is a better movie than that.  It’s clear upon watching that it was done on a shoestring budget, with ample use of stock footage, footage from documentaries, etc.  The basic plot has literally invisible invaders.  Aliens, who previously ignored Earth, but have now taken notice since the atomic age.  And they demand surrender to their invisible empire.  Or they will animate corpses and use them to cause vast devastation while being immune to any damage. A small group of scientists and one military man need to band together, find the aliens’ weakness, and fight back.