Synopsis
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.
Cast

Gene Barry
Clayton Forrester

Ann Robinson
Sylvia Van Buren

Lewis Martin
Matthew Collins

Les Tremayne
General Mann

Frank Kreig
Fiddler Hawkins (uncredited)

Vernon Rich
Ralph Heffner

Sandro Giglio
Dr. Bilderbeck

Ann Codee
Dr. Duprey (uncredited)

Robert Cornthwaite
Dr. Pryor

Cedric Hardwicke
Commentary (voice)
Houseley Stevenson Jr.
General Mann's Aide

William Phipps
Wash Perry

Jack Kruschen
Salvatore

Paul Birch
Alonzo Hogue (uncredited)

Paul Frees
Second Radio Reporter / Opening Announcer

Henry Brandon
Cop at Crash Site

Peter Adams
Pine Summit Fire Watcher (uncredited)

Eric Alden
Man (uncredited)
Hugh Allen
Brigadier General (uncredited)
Ruth Barnell
Mother (uncredited)

Edgar Barrier
Prof. McPherson (uncredited)

Russ Bender
Dr. Carmichael (uncredited)
Oscar Blank
Man in Church (uncredited)
Hazel Boyne
Screaming Woman (uncredited)
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