Who are the characters in the hack driver?

In "The Hack Driver," the main characters are the narrator, a young law clerk, and the hack driver, who is a clever and resourceful man posing as a taxi driver. The hack driver, whose real name is Oliver Lutkins, initially deceives the narrator by pretending to help him find a man named Lutkins. Other characters include the law clerk's boss, who sends him on the errand, and Lutkins' mother, who adds to the humor of the story. The narrative highlights themes of deception and the contrast between appearances and reality.