what was her early career?
Voice actress at Hanna-Barbera; and as a lead role for a sitcom called "In Trouble"
Nancy Cartwright
 At the end of 1980, Cartwright signed with a talent agency and landed a lead role in a pilot for a sitcom called "In Trouble". Cartwright described the show as "forgettable, but it jump-started my on-camera career". 
who is bart simpson? A fictional character in the American animated television series "The Simpsons" who designed this character? Matt Groening who produce the voice for this character? Nancy Cartwright where was she born? Dayton, Ohio
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Nancy Cartwright [SEP] Early career
She received the part, and later worked with Hunt on several other projects. At the end of 1980, Cartwright signed with a talent agency and landed a lead role in a pilot for a sitcom called "In Trouble". Cartwright described the show as "forgettable, but it jump-started my on-camera career". She graduated from UCLA in 1981 with a degree in theater. During the summer, Cartwright worked with Jonathan Winters as part of an improvisation troupe at Kenyon College in Gambier, Ohio. Returning to Los Angeles, Cartwright won the lead role in the television movie "Marian Rose White". Janet Maslin, a critic for "The New York Times", described Cartwright as "a chubby, lumbering, slightly cross-eyed actress whose naturalness adds greatly to the film's impact".