Actor -- via the Telegraph. Best known in America for his roles in movies such as Merlin in "Excalibur," Sherlock Holmes in "The Seven Per-Cent Solution," and Little John in "Robin and Marian." Williamson was much more of an extraordinary stage actor, doing remarkable turns in "Hamlet," "Macbeth," "Inadmissible Evidence," and "I Hate Hamlet." Plagued by passions and problems onstage and off, his great work has yet to be fully appreciated. A splendid and intense performer.