House M.D. is loosely based on which famous fictional detective?

House M.D. is loosely based on Sherlock Holmes.

The connection is deliberate rather than a direct adaptation. Gregory House and Holmes are both exceptionally observant, unconventional thinkers who solve difficult cases by noticing details others overlook. House’s surname echoes Holmes’s, and his apartment address is 221B Baker Street, the famous London address associated with Holmes.

James Wilson functions as a counterpart to Dr. John Watson, Holmes’s close companion and narrator in Arthur Conan Doyle’s stories. House also has a difficult relationship with authority, relies on deductive reasoning, and sometimes uses deceptive tests to expose the truth. Instead of crimes, however, House investigates illnesses.

The show also adapts smaller Holmes references into its medical world. House’s substance dependence parallels Holmes’s use of cocaine in the original stories, though the television character’s dependence is centered on Vicodin. The result is a medical mystery series that uses detective-fiction structure without retelling a specific Holmes story.