After initial struggles with a poorly received series of "The Captain and the Kids" cartoons, the studio rehired Harman and Ising in 1939, and Ising created the studio's first successful animated character, Barney Bear. However, MGM's biggest cartoon stars would come in the form of the cat-and-mouse duo Tom and Jerry, created by William Hanna and Joseph Barbera in 1940. The "Tom and Jerry" cartoons won seven Academy Awards between 1943 and 1953. In 1941, Tex Avery, another Schlesinger alumnus, joined the animation department. Avery gave the unit its image, with successes like "Red Hot Riding Hood", "Swing Shift Cinderella", and the "Droopy" series.