Ralph du Vergier Truman was an English actor, usually cast as either a villain or an authority figure. He possessed a distinguished speaking voice. He was born in London, England.

Quo Vadis is a 1951 American religious epic film set in ancient Rome during the final years of Emperor Nero's reign, based on the 1896 novel of the same title by Polish Nobel Laureate author Henryk Sienkiewicz. Produced by Metro-Goldwyn-Mayer and filmed in Technicolor, it was directed by Mervyn LeRoy from a screenplay by S. N. Behrman, Sonya Levien, and John Lee Mahin. It is the fourth screen adaptation of Sienkiewicz's novel. The film stars Robert Taylor, Deborah Kerr, Leo Genn, and Peter Ustinov, and features Patricia Laffan, Finlay Currie, Abraham Sofaer, Marina Berti, Buddy Baer, and Felix Aylmer. Future Italian stars Sophia Loren and Bud Spencer appeared as uncredited extras. The score is by Miklós Rózsa and the cinematography by Robert Surtees and William V. Skall. The film was released by Metro-Goldwyn-Mayer on November 2, 1951.