71 mins | Thriller, Science Fiction, Horror | July 14, 1956
71 mins | Thriller, Science Fiction, Horror | July 14, 1956
| IMDb rating | 4.9 |
| Producers | Sunset Productions, American International Pictures |
| Original title | It Conquered the World |
| Directors | Roger Corman |
| Writers | Lou Rusoff, Charles B. Griffith |
as Dr. Tom Anderson
as Claire Anderson
as Dr. Paul Nelson
as Joan Nelson
as General James Pattick
as Pvt. Miguel Ortiz
as Sgt. Neil
as Floyd Mason
as Dr. Pete Shelton
as Ellen Peters
as Sheriff N.J. Shallert
as George Haskell
as U.S. Secretary Platt
as Gen. Carpenter
as The Monster (uncredited)