Dr. Clayton Forrester
Sylvia Van Buren
Pastor Dr. Matthew Collins
Maj. Gen. Mann
Fiddler Hawkins (uncredited)
Col. Ralph Heffner
Dr. Bilderbeck
Dr. Duprey (uncredited)
Dr. Pryor (as Bob Cornthwaite)
Commentary (voice) (as Sir Cedric Hardwicke)
Gen. Mann's Aide (as Housely Stevenson Jr.)
Wash Perry (as Bill Phipps)
Salvatore
Alonzo Hogue (uncredited)
Second Radio Reporter / Opening Announcer
Cop at Crash Site
Pine Summit Fire Watcher (uncredited)
Man (uncredited)
Brigadier General (uncredited)
Mother (uncredited)
The residents of a small town are excited when a flaming meteor lands in the hills, until they discover it is the first of many transport devices from Mars bringing an army of invaders invincible to any man-made weapon, even the atomic bomb.