Cast & crew
It Conquered the World (1956)
Directed by Roger Corman Written by Lou Rusoff, Charles B. Griffith
Cast
| Dick Miller | Sgt. Neil |
| Sally Fraser | Joan Nelson |
| Russ Bender | General James Pattick |
| Jonathan Haze | Pvt. Miguel Ortiz |
| Lee Van Cleef | Dr. Tom Anderson |
| Peter Graves | Dr. Paul Nelson |
| Beverly Garland | Claire Anderson |
| Paul Harbor | Floyd Mason |
| Taggart Casey | Sheriff N.J. Shallert |
| Charles B. Griffith | Dr. Pete Shelton |
| Karen Kadler | Ellen Peters |
| Thomas E. Jackson | George Haskell |
| David McMahon | Gen. Carpenter |
| Paul Blaisdell | The Monster (uncredited) |
| Marshall Bradford | U.S. Secretary Platt |
Crew
| Ronald Stein | Original Music Composer |
| Samuel Z. Arkoff | Executive Producer |
| Paul Blaisdell | Special Effects |
| Roger Corman | Director |
| James H. Nicholson | Executive Producer |
| Roger Corman | Producer |
| Frederick E. West | Director of Photography |
| Lou Place | Production Manager |
| Larry Butterworth | Makeup Artist |
| Paul Blaisdell | Creature Design |
| Lou Rusoff | Screenplay |
| Charles B. Griffith | Writer |
| Charles Gross Jr. | Editor |
| Jay Ashworth | Sound |
| Al Overton Sr. | Sound |
| Philip Mitchell | Sound |