season finale, titled "Yellow Badge of Cowardge," will air tonight on Fox. In "Yellow Badge of Cowardge," Bart is plagued with guilt when he wins the annual "Race Around the School," with an assist from Nelson, who beats up frontrunner Milhouse. Meanwhile, Homer tries to bring back the annual 4th of July fireworks display after it's canceled for budget reasons. The voice cast includes Dan Castellaneta as Homer Simpson; Julie Kavner as Marge Simpson; Nancy Cartwright as Bart Simpson and Nelson; Yeardley Smith as Lisa Simpson; Harry Shearer as Skinner; Hank Azaria as Moe, Pamela Hayden as Milhouse and Jimbo; and Tress MacNeille as Dolph. Guest voices include Glenn Close as Mona Simpson and Edwin Moses as himself. The Simpsons, "Yellow Badge of Cowardge," airs Sunday, May 18 at 8 PM ET on Fox.