Nancy Cartwright Best known as the voice of Bart Simpson and many others, Emmy Award-winning actress Nancy Cartwright actively supports many non-profits that benefit children. She is the Honorary Mayor of the North San Fernando Valley and the co-founder of her own non-profit, Happy House, an organization dedicated to Building Better Families."

http://www.nancycartwright.com/

What is the definition of success for Nancy Cartwright (trailer)