The Devil at 4 O'Clock is a 1961 American adventure film directed by Mervyn LeRoy and starring Spencer Tracy and Frank Sinatra. Based on a 1958 novel with the same title by British writer Max Catto, the film was a precursor to Krakatoa, East of Java and the disaster films of the 1970s such as The Poseidon Adventure, Earthquake and The Towering Inferno.

Kerwin Mathews was an American actor best known for playing the titular heroes in The 7th Voyage of Sinbad (1958), The Three Worlds of Gulliver (1960), and Jack the Giant Killer (1962).