Henry Levin began as a stage actor and director but was most notable as an American film director of over fifty feature films. His best known credits were Jolson Sings Again (1949), Journey to the Center of the Earth (1959) and Where the Boys Are (1960).

Melchor Gastón Ferrer was an American actor and filmmaker. He achieved prominence on Broadway before scoring notable film hits with Scaramouche, Lili, and Knights of the Round Table. He starred opposite his wife, actress Audrey Hepburn, in War and Peace and produced her film Wait Until Dark. He also acted extensively in European films and appeared in several cult hits, including The Antichrist (1974), The Suspicious Death of a Minor (1975), The Black Corsair (1976), and Nightmare City (1980).