Which classic fictional detective inspired Gregory House in House M.D.?

Sherlock Holmes inspired Gregory House in House M.D. The series deliberately parallels House with Arthur Conan Doyle's consulting detective, especially through observation, deduction, skepticism, and unusual investigative methods.

The connection appears in character details as well as in the diagnostic structure. House and Holmes both rely on close observation, challenge conventional explanations, and often reach conclusions that surprise people around them. House's surname also echoes Holmes's name through the idea of a dwelling or residence.

James Wilson parallels Dr. John Watson as the trusted friend who listens to the protagonist and helps connect him with ordinary social life. The show's hospital setting replaces Holmes's London consulting room, while medical symptoms take the place of criminal clues.

House M.D. does not simply retell a Holmes story. It adapts the detective formula to clinical diagnosis, making the patient case the mystery and the diagnostic team the investigative group.