Batman is a fictional character created by Bob Kane and Bill Finger for DC Comics and the main protagonist in the DC Universe. He is DC's flagship character. Batman is the secret identity of the very rich businessman Bruce Wayne. He is one of the most famous and popular superheroes. Batman first appeared in comic books and was later used in several radio series, movies, TV programs, books, and video games. There are also many toys and other merchandise dealing with Batman and other characters and items from the world he lives in. Batman lives in the fictional city of Gotham. Batman has a trusty sidekick Robin whose identity has been taken up by various heroes, usually his wards.