Character Name : Dr. Tom Anderson

Original Name : Lee Van Cleef

Gender : Male

Character Name : Claire Anderson

Original Name : Beverly Garland

Gender : Female

Character Name : Dr. Paul Nelson

Original Name : Peter Graves

Gender : Male

Character Name : Joan Nelson

Original Name : Sally Fraser

Gender : Female

Character Name : General James Pattick

Original Name : Russ Bender

Gender : Male

Character Name : Pvt. Miguel Ortiz

Original Name : Jonathan Haze

Gender : Male

Character Name : Sgt. Neil

Original Name : Dick Miller

Gender : Male

Character Name : Floyd Mason

Original Name : Paul Harbor

Gender : Male

Character Name : Dr. Pete Shelton

Original Name : Charles B. Griffith

Gender : Male

Character Name : Ellen Peters

Original Name : Karen Kadler

Gender : Female

Character Name : Sheriff N.J. Shallert

Original Name : Taggart Casey

Gender : Male

Character Name : George Haskell

Original Name : Thomas E. Jackson

Gender : Male

Character Name : U.S. Secretary Platt

Original Name : Marshall Bradford

Gender : Male

Character Name : Gen. Carpenter

Original Name : David McMahon

Gender : Male

Character Name : The Monster (uncredited)

Original Name : Paul Blaisdell

Gender : Male