Fidget was the secondary villain in the 1986 Disney movie "The Great Mouse Detective."
Fidget was a small and slender gray bat with a crippled wing, a peg leg, and wears a black hat.
In the beginning of the movie, he kidnaps Hiram Flaversham in his toy shop, leaving his daughter Olivia all by herself. Desperate to find him, she sets out to find Basil of Baker Street, the only detective with the skills to find him. When she informs Basil that it was Fidget who kidnapped her father and that he was a bat with a peg leg, Basil immediately knew Ratigan was behind the kidnapping, and set out with Olivia and Dr. Dawson to find them.
Ratigan charges Fidget with kidnapping Olivia as a means of blackmailing Flaversham with her life, as he is needed to help Ratigan overthrow the Queen of Mousedom on her Diamond Jubilee. Fidget also is charged with stealing tools and uniforms for Ratigan's gang to use when they overthrow the queen, and steals them from a local toy shop. Basil tracks him there, so Fidget disguises himself as a baby in a crib using only a bundle until Olivia, out of curiosity, comes across the crib and finds Fidget. He kidnaps her and manages to escape before Basil can stop him.
Unfortunately, Fidget later discovers that the list of the things he needed to steal was missing, and realized that Basil would use it as evidence. When Ratigan learned Basil was on their trail, he almost fed Fidget to his cat Felicia, but spared him when he found that Fidget could help him to catch Basil. Fidget tracks Basil and Dawson to a local pub and tricks them into following him to Ratigan's Lair, where he dresses up like Olivia in a bottle to lure in the duo. Basil and Dawson are catched, and are left for dead while Ratigan and Fidget run off to overthrow the queen.
Fidget delivers the fake robotic queen built by Flaversham to the queen, and they arrest her to be fed to Felicia. Fidget carries out this task, but instead he is nearly eaten once again when Basil, who escaped Ratigan's trap, rescues the queen at last second, but is saved by Toby. Fidget escapes his bonds and once again kidnaps Olivia. He and Ratigan escape on a hot air balloon over the Thames River.
During their getaway, the crooks are pursued by Basil, Dawson, and Flaversham on a makeshift balloon, and Fidget tries to outrun them. Unfortunately, the extra weight is too much for him, and tells Ratigan that they have to lighten the load, meaning throw Olivia off the balloon. Deciding that Fidget outlived his usefulness, Ratigan throws him out instead. However, Fidget cannot fly because of his bad wing and falls into the Thames River below, where he was thought to have died but was later revealed to have survived the fall.