Betty Boop made her first appearance on August 9, 1930, in the cartoon Dizzy Dishes the sixth installment in Fleischer's Talkartoon series. Although Clara Bow is often given as being the model for Boop, she actually began as a caricature of singer Helen Kane. The character was originally created as an anthropomorphic French poodle.
Max Fleischer finalized Betty Boop as a human character in 1932, in the cartoon Any Rags. Her floppy poodle ears became hoop earrings, and her black poodle nose became a girl's button-like nose. Betty Boop appeared as a supporting character in 10 cartoons as a flapper girl with more heart than brains. In individual cartoons, she was called "Nancy Lee" or "Nan McGrew" – derived from the 1930 Helen Kane film Dangerous Nan McGrew – usually serving as a girlfriend to studio star, Bimbo.
Betty's voice was first performed by Margie Hines, and was later performed by several different voice actresses, including Kate Wright, Bonnie Poe, Ann Rothschild (aka Little Ann Little), and most notably, Mae Questel. Questel, who began voicing Betty Boop in 1931, continued with the role until her death in 1998.