Complex sentence: Nancy Cartwright (born October 25,1957) is an American voice actress, comedian, filmmaker, writer and author known for her long-running role as Bart Simpson on the animated television series "The Simpsons".
Split into simpler sentences: Nancy Cartwright (born October 25,1957) is an American voice actress, comedian, writer, author, and filmmaker. She is known for her long-running role as Bart Simpson on the animated television series "The Simpsons".