Gregory House is the House M.D. character explicitly modeled on Sherlock Holmes.
House’s resemblance to Holmes is built into both character and structure. He solves medical cases through observation, deduction, and elimination, often noticing a small detail that other doctors overlook. His friend James Wilson fills a role comparable to Dr. Watson as a loyal companion and narrator-like witness to his methods.
The parallels extend beyond diagnosis. House and Holmes both have unusual habits, struggle with substance use, play music, and maintain a skeptical attitude toward ordinary social behavior. House’s surname also recalls Holmes’s home at 221B Baker Street, while Wilson’s name echoes Watson.
The show does not simply retell Holmes stories. It translates detective fiction into hospital medicine, making symptoms, test results, and patient histories function like clues. This framework is why House M.D. is often described as a medical procedural with a detective-story engine.