Advertisement'Whoa, Mama!': A Voice Actress's Road To Fame As A 10-Year-Old BoyFebruary 28, 2015Danny HajekfacebookEmailNancy Cartwright voices the mischievous 10-year-old son, Bart, in the animated TV show, The Simpsons. "I don't know of any other character that has more catch-phrases than Bart," she says. (Courtesy of FOX)
