The Adventure of the Greek Interpreter Sherlock Holmes, far from being a one-off in terms of his powers of observation and deductive reasoning, in fact has an elder brother whose skills, or so Holmes claims, outstrip even his own. As a consequence of this, Watson becomes acquainted with the Diogenes Club and his friend's brother, Mycroft. Mycroft, as Watson learns, does not have the energy of his younger brother and as a consequence is incapable of using his great skills for detective work: In spite of his inertia, the elder Holmes has often delivered the correct answer to a problem that Sherlock has brought to him.
Sherlock Holmes pastiches meeting Roger Morlidge's Watson for the first time while pursuing Vincent D'Onofrio's Moriarty, whose opium-trading schemes have left Mycroft (Richard E. Grant) physically and mentally scarred. "The Case of the Whitechapel Vampire" (2002 TV movie) stars Matt Frewer and Kenneth Welsh as Holmes and Watson investigating reports of vampire attacks in Whitechapel, East London. The film was preceded by adaptations of "The Hound of the Baskervilles" (2000 TV movie) and "The Sign of Four" (2001 TV movie). "Sherlock Holmes and the Case of the Silk Stocking" (2004 TV movie), has Holmes (Rupert Everett) and Watson (Ian Hart) searching for a