 The cast included Robert Taylor as Sir Lancelot, Ava Gardner as Queen Guinevere, Mel Ferrer as King Arthur, Anne Crawford as Morgan Le Fay, Stanley Baker as Modred and Felix Aylmer as Merlin.The film uses the Welsh spelling for Arthur's nemesis, "Modred", rather than the more common "Mordred".In addition to the same producer, director and star, the first two films in the trilogy had the same cinematographer (F. A.