Arguably Hollywood's most celebrated and enduring screen horror icon, Boris Karloff embodied legendary movie monsters and madmen in such films as "Frankenstein" (1931), "The Mummy" (1931), "The Mask of Fu Manchu" (1932), "The Bride of Frankenstein" (1935), "Isle of the Dead" (1945) and "The Body Snatcher" (1945) over the course of a four-decade career. He began as an obscure background player, essaying exotic types in silent films and serials until 1931, when his sympathetic turn as the Monster in "Frankenstein" made him an international star. For the next two decades, Karloff was the undisputed king of movie horror, while cultivating a lively presence in more dramatic and even comic fare on television and stage. He remained exceptionally popular into his seventh decade, especially among young viewers, who were entranced by his avuncular narration for "The Grinch Who Stole Christmas!" (CBS, 1966). A beloved figure both on and off-screen, Karloff's performances - both chilling and charming - remained the gold standard by which all subsequent horror actors were measured.