Ib Jørgen Melchior was a Danish-American novelist, short-story writer, film producer, film director, and screenwriter of low-budget American science fiction movies, most of them released by American International Pictures.

Lauritz Melchior was a Danish-American opera singer. He was the preeminent Wagnerian heldentenor of the 1920s, 1930s, and 1940s and has come to be considered the quintessence of his voice type. Late in his career, Melchior appeared in movie musicals and on radio and television. He also made numerous recordings.