Series of various genres, featuring recurrent, title-worthy characters or name actors in familiar roles, were particularly popular during the first decade of sound film. Fox's many B series, for instance, included Charlie Chan mysteries, Ritz Brothers comedies, and musicals with child star Jane Withers. These series films are not to be confused with the short, cliffhanger-structured serials that sometimes appeared on the same program. As with serials, however, many series were intended to attract young people—a theater that twin-billed part-time might run a "balanced" or entirely youth-oriented double feature as a matinee and then a single film for a more mature audience at night. In the words of one industry report, afternoon moviegoers, "composed largely of housewives and children, want quantity for their money while the evening crowds want 'something good and not too much of it.'"