“Tomorrow evening, our beloved monarch celebrates her Diamond Jubilee and, with the enthusiastic help of our good friend, Mr. Flaversham, it promises to be a night she will never forget! Her last night, and my first, as supreme ruler of all Mousedom!”
―Ratigan explains his scheme to his henchmen
Professor Ratigan is the main antagonist of Disney's 1986 animated feature film, The Great Mouse Detective. A pernicious, yet suave crime lord, Ratigan is the archenemy of Basil of Baker Street, who proves to be an obstacle in his grand scheme to control all of Mousedom. Ratigan is obsessed with his status as a mouse, but when labeled a rat, his ostentatious demeanor shatters and reveals a violent and savage mind.
Ratigan is based on the character of the same name from Basil of Baker Street and the story's version of Professor James Moriarty from Arthur Conan Doyle's Sherlock Holmes stories.