John Loder was established as a British film actor in Germany and Britain before migrating to the United States in 1928 for work in the new talkies. He worked in Hollywood for two periods, becoming an American citizen in 1947. After living also in Argentina, he became a naturalized British citizen in 1959.

The Unholy Night is a 1929 American pre-Code mystery film directed by Lionel Barrymore and starring Ernest Torrence.