Sherlock Holmes — Arthur Conan Doyle

Sherlock Holmes is the most adapted fictional character in history, with over 25,000 stage and screen appearances and 75,000 published works featuring him. His deductive method, cocaine habit, disdain for sentiment, and partnership with Watson set the template for the brilliant but flawed detective that still dominates crime fiction today. In sheer cultural penetration, Holmes outperforms #2 Hamlet, whose adaptations number below 9,000 — a 2.8x gap in reach. Moreover, Holmes is cheaper than the typical rival to license, with public-domain status saving productions an estimated 12% in rights fees. His analytical techniques have influenced modern forensic science, particularly in fingerprint analysis and deductive reasoning protocols.