Cast and credits of It Conquered the World

Directed by

Roger Corman

Starring

Peter Graves
Dr. Paul Nelson

Beverly Garland
Claire Anderson

Lee Van Cleef
Dr. Tom Anderson

Sally Fraser
Joan Nelson

Russ Bender
Brig. Gen. James Pattick

Jonathan Haze
Pvt. Manuel Ortiz

Dick Miller
Sgt. Neil

Taggart Casey
Sheriff N.J. Shallert

Karen Kadler
Ellen Peters (as Karyne Kadler)

Charles B. Griffith
Dr. Pete Shelton (as Charles Griffith)

Marshall Bradford
U.S. Secretary Platt (as Marshal Bradford)

Thomas E. Jackson
George Haskell (as Tom Jackson)

David McMahon
Gen. Carpenter

Paul Blaisdell
The Monster (uncredited)

Written by

Charles B. Griffith
uncredited