William C. de Mille: William C. de Mille. Director: The Splendid Crime. William Churchill de Mille, the older brother of Hollywood legend Cecil B. DeMille (W.C. retained the family spelling of his name) and father of Tony Award-winning choreographer Agnes de Mille, was born in Washington, North Carolina, on July 25, 1878. His father, Henry C. DeMille, was a playwright who had six plays produced on Broadway from 1887-90, while his mother, Beatrice DeMille,...