The Thing from Another World, sometimes referred to as just The Thing, is a 1951 American black-and-white science fiction-horror film, directed by Christian Nyby, produced by Edward Lasker for Howard Hawks' Winchester Pictures Corporation, and released by RKO Radio Pictures. The film stars Margaret Sheridan, Kenneth Tobey, Robert Cornthwaite, and Douglas Spencer. James Arness plays The Thing. The Thing from Another World is based on the 1938 novella "Who Goes There?" by John W. Campbell.

James Arness was an American actor, best known for portraying Marshal Matt Dillon for 20 years in the series Gunsmoke. He has the distinction of having played the role of Dillon in five decades: 1955 to 1975 in the weekly series, then in Gunsmoke: Return to Dodge (1987) and four more made-for-television Gunsmoke films in the 1990s. In Europe, Arness reached cult status for his role as Zeb Macahan in the Western series How the West Was Won. He was the older brother of actor Peter Graves.