This article lists 12 popular Halloween costume ideas including Superman, Superwoman, Joker, Batman, Woody, Buzz Lightyear, Jack Sparrow, Lady Gaga, Scooby-Doo, Mr. Flintstone, Mrs. Flintstone, and a beer keg costume. The costumes appeal to both genders and feature characters from comics, movies, and cartoons that many people enjoy dressing up as for Halloween festivities.