Gordon De Main was an American film actor. He was leading man for the New York–based Excelsior company in the early 1910s, and was later a supporting actor in many films, particularly Westerns.

The Mad Monster is a 1942 American black and white horror film, produced and distributed by "Poverty Row" studio Producers Releasing Corporation. The film stars George Zucco, Glenn Strange, Johnny Downs, and Anne Nagel.