In House M.D., the diagnostician played by Hugh Laurie is Gregory House.
Gregory House is the central character of the medical drama, introduced as the head of diagnostic medicine at Princeton-Plainsboro Teaching Hospital. He is famous for solving unusual cases that other physicians cannot explain, often by combining detailed observation with unconventional reasoning.
The character’s surname and deductive style intentionally echo Sherlock Holmes. House’s first name is Gregory, while his closest friend is oncologist James Wilson. Viewers sometimes confuse House’s name with the actor’s name, Hugh Laurie, or with the name of the hospital department he leads.
House also has a serious leg injury, which causes chronic pain and contributes to his dependence on Vicodin during much of the series. His personality is abrasive, but the show repeatedly contrasts his difficult behavior with his extraordinary diagnostic ability.