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.
Thomas Mycroft and played two games for MCC. In 1885 he played a single MCC V Derbyshire match in which he had a small bowling spell for Derbyshire. In 1887 he played for South against North and his final match was for MCC against Oxford University. Mycroft was wicket keeper in all but two first-class games when he bowled in all 44 balls without a wicket. He was a left-handed batsman and played 46 innings in 24 first-class matches with a top score of 24 not out and an average of 7.78. Mycroft returned to the game as an umpire, from 1897